IEC 60748-2-20:2008

IEC 60748-2-20
Edition 2.0 2008-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Semiconductor devices – Integrated circuits –
Part 2-20: Digital integrated circuits – Family specification – Low voltage
integrated circuits
Dispositifs à semiconducteurs – Circuits intégrés –
Partie 2-20: Circuits intégrés numériques – Spécification de famille – Circuits
intégrés basse tension
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IEC 60748-2-20
Edition 2.0 2008-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Semiconductor devices – Integrated circuits –
Part 2-20: Digital integrated circuits – Family specification – Low voltage
integrated circuits
Dispositifs à semiconducteurs – Circuits intégrés –
Partie 2-20: Circuits intégrés numériques – Spécification de famille – Circuits
intégrés basse tension
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
S
CODE PRIX
ICS 31.200 ISBN 2-8318-9642-8
– 2 – 60748-2-20 © IEC:2008
CONTENTS
FOREWORD.4
INTRODUCTION.6

1 Scope.7
2 Normative references .7
3 Terms and definitions .7
4 Interface specifications for low supply voltage below 3,3 V .8
4.1 Specifications for 3,3 V nominal power supply voltage.8
4.1.1 General .8
4.1.2 Absolute maximum continuous ratings .8
4.1.3 Normal range of operating supply voltage.8
4.1.4 Wide range of operating supply voltage .9
4.2 Specifications for 2,5 V nominal power supply voltage.10
4.2.1 General .10
4.2.2 Absolute maximum continuous ratings .10
4.2.3 Normal range of operating supply voltage.10
4.2.4 Wide range of operating supply voltage .11
4.3 Specifications for 1,8 V nominal power supply voltage.12
4.3.1 General .12
4.3.2 Absolute maximum continuous ratings .12
4.3.3 Normal range of operating supply voltage.12
4.3.4 Wide range of operating supply voltage .13
4.4 Specifications for 1,5 V nominal power supply voltage.13
4.4.1 General .13
4.4.2 Absolute maximum continuous ratings .13
4.4.3 Normal range of operating supply voltage.14
4.4.4 Wide range of operating supply voltage .14
4.5 Specifications for 1,2 V nominal power supply voltage.15
4.5.1 General .15
4.5.2 Absolute maximum continuous ratings .15
4.5.3 Normal range of operating supply voltage.16
4.5.4 Wide range of operating supply voltage .16
4.6 Specifications for 1,0 V nominal power supply voltage.17
4.6.1 General .17
4.6.2 Absolute maximum continuous ratings .17
4.6.3 Normal range of operating supply voltage.18
4.6.4 Wide range of operating supply voltage .19

Annex A (informative) Threshold voltage test conditions of Schmitt trigger operation .20

Bibliography.21

Figure A.1 − DC characteristic measurement circuit of Schmitt-trigger input.20

60748-2-20 © IEC:2008 – 3 –
Table 1 – Absolute maximum continuous ratings for nominal 3,3 V .8
Table 2 – Operating conditions for 3,3 V normal range.8
Table 3 – Output characteristics for 3,3 V normal range.9
Table 4 – Operating conditions for 3,3 V wide range .9
Table 5 – Output characteristics for 3,3 V wide range .9
Table 6 – Absolute maximum continuous ratings for nominal 2,5 V .10
Table 7 – Operating conditions for 2,5 V normal range.10
Table 8 – Output characteristics for 2,5 V normal range.11
Table 9 – Operating conditions for 2,5 V wide range .11
Table 10 – Output characteristics for 2,5 V wide range .11
Table 11 – Absolute maximum continuous ratings for nominal 1,8 V .12
Table 12 – Operating conditions for 1,8 V normal range.12
Table 13 – Output characteristics for 1,8 V normal range.13
Table 14 – Operating conditions for 1,8 V wide range .13
Table 15 – Output characteristics for 1,8 V wide range .13
Table 16 – Absolute maximum continuous ratings for nominal 1,5 V .14
Table 17 – Operating conditions for 1,5 V normal range.14
Table 18 – Output characteristics for 1,5 V normal range.14
Table 19 – Operating conditions for 1,5 V wide range .15
Table 20 – Output characteristics for 1,5 V wide range .15
Table 21 – Absolute maximum continuous ratings for nominal 1,2 V .15
Table 22 – Operating conditions for 1,2 V normal range.16
Table 23 – Output characteristics for 1,2 V normal range.16
Table 24 – Operating conditions for 1,2 V wide range .17
Table 25 – Output characteristics for 1,2 V wide range .17
Table 26 – Absolute maximum continuous ratings for nominal 1,0 V .18
Table 27 – Operating conditions for 1,0 V normal range.18
Table 28 – Output characteristics for 1,0 V normal range.18
Table 29 – Operating conditions for 1,0 V wide range .19
Table 30 – Output characteristics for 1,0 V wide range .19

– 4 – 60748-2-20 © IEC:2008
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SEMICONDUCTOR DEVICES –
INTEGRATED CIRCUITS –
Part 2-20: Digital integrated circuits –
Family specification –
Low voltage integrated circuits

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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6) All users should ensure that they have the latest edition of this publication.
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60748-2-20 has been prepared by subcommittee 47A: Integrated
circuits, of IEC technical committee 47: Semiconductor devices.
This second edition of IEC 60748-2-20 cancels and replaces the first edition published in
2000. This edition constitutes a technical revision.
This edition includes the following significant changes with respect to the previous edition:
– Expansion of power supply voltages down to nominal 1,0 V
– Addition of Schmitt-trigger input specification

60748-2-20 © IEC:2008 – 5 –
The text of this standard is based on the following documents:
CDV Report on voting
47A/770/CDV 47A/777A/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This standard is a family specification for low voltage integrated circuits.
A list of all the parts in the IEC 60748 series, under the general title Semiconductor devices –
Integrated circuits, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
– 6 – 60748-2-20 © IEC:2008
INTRODUCTION
The dimensions of integrated circuit devices are continuing to be reduced, both vertically and
horizontally, to obtain better performance and higher density. However, if the supply voltages
and interface levels are not reduced, the electric fields within the die (chip) will increase,
which leads to reduced reliability. These increased fields will also, together with the higher
system-clock rate, lead to increased electromagnetic interference and noise induced on the
supply leads and the ground plane, which leads to lower noise immunity and a higher
probability of malfunction. To continue this trend of scaling down the size of semiconductor
devices, lower power supply voltages are essential.
For systems operating at lower supply voltage, the tolerances on the supply voltage and the
input and output voltages must be specified more closely. Also, since the market for
battery-operated equipment is expected to grow considerably, it is important to include
specifications that cover this field. By setting standard values at this stage, manufacturing
costs can be reduced and users can design systems more economically.
After the publication of first edition of this standard, scaling of digital ICs has still been
drastically proceeding, and nowadays, state-of-the art digital ICs are operated at 1,2 V, and
Schmitt trigger interface is widely used. In light of the situation, this second edition expands
the specification of nominal power supply voltage down to 1,0 V and includes specifications of
Schmitt trigger interface.
60748-2-20 © IEC:2008 – 7 –
SEMICONDUCTOR DEVICES –
INTEGRATED CIRCUITS –
Part 2-20: Digital integrated circuits –
Family specification –
Low voltage integrated circuits

1 Scope
This standard aims at giving DC interface specifications for various sets of values, where
each comprises the nominal value of power supply voltage, its tolerance, and the worst-case
limit values of the input and output voltages for low voltage integrated circuits.
It also provides two categories of interface specification for each nominal supply voltage –
normal range and wide range. The normal range is based on the nominal industry standard
with typical tolerance of about 10 %. The wide range covers battery operation that extends the
lower limit to a practical value at which the battery will continue to operate.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
IEC 60748-2:1997, Semiconductor devices – Integrated circuits – Part 2: Digital integrated
circuits
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
absolute maximum continuous ratings
conditions from which damage to the circuit may occur, if the circuit is exposed to such
conditions
3.2
operating conditions
conditions under which the circuit functions normally with appropriate degree of reliability
3.3
output characteristics
requirements for the circuit to fulfil under the operating condition

– 8 – 60748-2-20 © IEC:2008
4 Interface specifications for low supply voltage below 3,3 V
4.1 Specifications for 3,3 V nominal power supply voltage
4.1.1 General
These specifications apply to LVTTL- and LVCMOS-compatible circuits over the full operating
temperature range specified by manufacturer to be commercial, industrial, and/or military
grade.
4.1.2 Absolute maximum continuous ratings
Table 1 specifies absolute maximum continuous ratings of the circuits.
Table 1 – Absolute maximum continuous ratings for nominal 3,3 V
Parameters Symbol Min. Max. Unit
Power supply voltage V -0,5 4,6 V
DD
V + 0,5
DD
DC input voltage V -0,5 V
IN (4,6 V max)
V + 0,5
DD
DC output voltage V -0,5 V
OUT (4,6 V max)
a
Storage temperature range T — — °C
STG
a
Storage temperature range shall be specified by manufacturer for various purposes.

4.1.3 Normal range of operating supply voltage
Table 2 and Table 3 specify operating conditions and output characteristics for normal range
power supply, respectively.
Table 2 – Operating conditions for 3,3 V normal range
Parameters Symbol Min. Max. Unit
Power supply voltage V 3,0 3,6 V
DD
High-level input
V 2,0 V + 0,3 V
IH DD
voltage
Normal input
Low-level input
V -0,3 0,8 V
IL
voltage
Positive going
V 0,9 2,1 V
ITP
threshold voltage
Negative going
Schmitt trigger input
V 0,7 1,9 V
ITN
threshold voltage
Hysteresis voltage V 0,2 1,4 V
hys
a
Operating temperature range T — — °C
a
a
Operating temperature range shall be specified by manufacturer for various purposes.

60748-2-20 © IEC:2008 – 9 –
Table 3 – Output characteristics for 3,3 V normal range
LVTTL LVCMOS
Characteristics Symbol Condition Unit
Min. Max. Min. Max.
I = -2 mA 2,4 — — — V
OH
High-level output
V
OH
voltage
I = -100 μA — — V – 0,2 — V
OH DD
I = 2 mA — 0,4 — — V
OL
Low-level output
V
OL
voltage
I = 100 μA — — — 0,2 V
OL
4.1.4 Wide range of operating supply voltage
Table 4 and Table 5 specify operating conditions and output characteristics for wide range
power supply, respectively.
Table 4 – Operating conditions for 3,3 V wide range
Parameters Symbol Min. Max. Unit
Power supply voltage V 2,7 3,6 V
DD
High-level input
V 2,0 V + 0,3 V
IH DD
voltage
Normal input
Low-level input
V -0,3 0,8 V
IL
voltage
Positive going
V 0,9 2,1 V
ITP
threshold voltage
Negative going
Schmitt trigger input
V 0,7 1,9 V
ITN
threshold voltage
Hysteresis voltage V 0,2 1,4 V
hys
a
Operating temperature range T — — °C
a
a
Operating temperature range shall be specified by manufacturer for various purposes.

Table 5 – Output characteristics for 3,3 V wide range
LVCMOS
Characteristics Symbol Condition Unit
Min. Max.
High-level output voltage V I = -100 μA V – 0,2 — V

OH OH DD
Low-level output voltage V I = 100 μA — 0,2 V

OL OL
– 10 – 60748-2-20 © IEC:2008
4.2 Specifications for 2,5 V nominal power supply voltage
4.2.1 General
These specifications apply to CMOS-compatible circuits over the full operating temperature
range specified by manufacturer to be commercial, industrial, and/or military grade.
4.2.2 Absolute maximum continuous ratings
Table 6 specifies absolute maximum continuous ratings of the circuits.
Table 6 – Absolute maximum continuous ratings for nominal 2,5 V
Parameters Symbol Min. Max. Unit
Power supply voltage V -0,5 3,6 V
DD
V + 0,5
DD
DC input voltage V -0,5 V
IN
(3,6 V max)
V + 0,5
DD
DC output voltage V -0,5 V
OUT
(3,6 V max)
a
Storage temperature range T — — °C
STG
a
Storage temperature range shall be specified by manufacturer for various purposes.

4.2.3 Normal range of operating supply voltage
Table 7 and Table 8 specify operating conditions and output characteristics for normal range
power supply, respectively.
Table 7 – Operating conditions for 2,5 V normal range
Parameters Symbol Min. Max. Unit
Power supply voltage V 2,3 2,7 V
DD
High-level input
V 1,7 V + 0,3 V
IH DD
voltage
Normal input
Low-level input
V -0,3 0,7 V
IL
voltage
Positive going
V 0,9 1,7 V
ITP
threshold voltage
Schmitt trigger
Negative going
V 0,7 1,5 V
input
ITN
threshold voltage
Hysteresis voltage V 0,2 1,0 V
hys
a
Operating temperature range T — — °C
a
a
Operating temperature range shall be specified by manufacturer for various purposes.

60748-2-20 © IEC:2008 – 11 –
Table 8 – Output characteristics for 2,5 V normal range
Characteristics Symbol Condition Min. Max. Unit
2,1 — V
I = -100 μA
OH
High-level output voltage V
I = -1 mA 2,0 — V
OH
OH
I = -2 mA 1,7 — V
OH
I = 100 μA — 0,2 V
OL
Low-level output voltage V I = 1 mA — 0,4 V

OL OL
I = 2 mA — 0,7 V
OL
4.2.4 Wide range of operating supply voltage
Table 9 and Table 10 specify operating conditions and output characteristics for wide range
power supply, respectively.
Table 9 – Operating conditions for 2,5 V wide range
Parameters Symbol Min. Max. Unit
Power supply voltage V 1,8 2,7 V
DD
High-level input
V 0,7 x V V + 0,3 V
IH DD DD
voltage
Normal input
Low-level input
V -0,3 0,2 x V V
IL DD
voltage
Positive going
V 0,25 x V 0,75 x V V
ITP DD DD
threshold voltage
Negative going
Schmitt trigger input
V 0,15 x V 0,65 x V V
ITN DD DD
threshold voltage
Hysteresis voltage V 0,1 x V 0,6 x V V
hys DD DD
a
Operating temperature range T — — °C
a
a
Operating temperature range shall be specified by manufacturer for various purposes.

Table 10 – Output characteristics for 2,5 V wide range
Characteristics Symbol Condition Min. Max. Unit
High-level output voltage V I = -100 μA V – 0,2 — V

OH OH DD
Low-level output voltage V I = 100 μA — 0,2 V

OL OL
– 12 – 60748-2-20 © IEC:2008
4.3 Specifications for 1,8 V nominal power supply voltage
4.3.1 General
These specifications apply to CMOS-compatible circuits over the full operating temperature
range specified by manufacturer to be commercial, industrial, and/or military grade.
4.3.2 Absolute maximum continuous ratings
Table 11 specifies absolute maximum continuous ratings of the circuits.
Table 11 – Absolute maximum continuous ratings for nominal 1,8 V
Parameters Symbol Min. Max. Unit
Power supply voltage V -0,5 2,5 V
DD
V + 0,5
DD
DC input voltage V -0,5 V
IN
(2,5 V max)
V + 0,5
DD
DC output voltage V -0,5 V
OUT
(2,5 V max)
a
Storage temperature range T — — °C
STG
a
Storage temperature range shall be specified by manufacturer for various purposes.

4.3.3 Normal range of operating supply voltage
Table 12 and Table 13 specify operating conditions and output characteristics for normal
range power supply, respectively.
Table 12 – Operating conditions for 1,8 V normal range
Parameters Symbol Min. Max. Unit
Power supply voltage V 1,65 1,95 V
DD
High-level input
V 0,65 x V V + 0,3 V
IH DD DD
voltage
Normal input
Low-level input
V -0,3 0,35 x V V
IL DD
voltage
Positive going
V 0,4 x V 0,7 x V V
ITP DD DD
threshold voltage
Negative going
Schmitt trigger input
V 0,3 x V 0,6 x V V
ITN DD DD
threshold voltage
Hysteresis voltage V 0,1 x V 0,4 x V V
hys DD DD
a
Operating temperature range T — — °C
a
a
Operating temperature range shall be specified by manufacturer for various purposes.

60748-2-20 © IEC:2008 – 13 –
Table 13 – Output characteristics for 1,8 V normal range
Characteristics Symbol Condition Min. Max. Unit
High-level output voltage V I = -2 mA V – 0,45 — V

OH OH DD
Low-level output voltage V I = 2 mA — 0,45 V

OL OL
4.3.4 Wide range of operating supply voltage
Table 14 and Table 15 specify operating conditions and output characteristics for wide range
power supply, respectively.
Table 14 – Operating conditions for 1,8 V wide range
Parameters Symbol Min. Max. Unit
Power supply voltage V 1,2 1,95 V
DD
High-level input
V 0,7 x V V + 0,3 V
IH DD DD
voltage
Normal input
Low-level input
V -0,3 0,3 x V V
IL DD
voltage
Positive going
V 0,35 x V 0,75 x V V
ITP DD DD
threshold voltage
Negative going
Schmitt trigger input
V 0,25 x V 0,65 x V V
ITN DD DD
threshold voltage
Hysteresis voltage V 0,1 x V 0,5 x V V
hys DD DD
a
Operating temperature range T — — °C
a
a
Operating temperature range shall be specified by manufacturer for various purposes.

Table 15 – Output characteristics for 1,8 V wide range
Characteristics Symbol Condition Min. Max. Unit
High-level output voltage V I = -100 μA V – 0,2 - V

OH OH DD
Low-level output voltage V I = 100 μA — 0,2 V

OL OL
4.4 Specifications for 1,5 V nominal power supply voltage
4.4.1 General
These specifications apply to CMOS-compatible circuits over the full operating temperature
range specified by manufacturer to be commercial, industrial, and/or military grade.
4.4.2 Absolute maximum continuous ratings
Table 16 specifies absolute maximum continuous ratings of the circuits.

– 14 – 60748-2-20 © IEC:2008
Table 16 – Absolute maximum continuous ratings for nominal 1,5 V
Parameters Symbol Min. Max. Unit
Power supply voltage V -0,5 2,0 V
DD
V + 0,5
DD
DC input voltage V -0,5 V
IN
(2,0 V max)
V + 0,5
DD
DC output voltage V -0,5 V
OUT
(2,0 V max)
a
Storage temperature range T — — °C
STG
a
Storage temperature range shall be specified by manufacturer for various purposes.
4.4.3 Normal range of operating supply voltage
Table 17 and Table 18 specify operating conditions and output characteristics for normal
range power supply, respectively.
Table 17 – Operating conditions for 1,5 V normal range
Parameters Symbol Min. Max. Unit
Power supply voltage V 1,4 1,6 V
DD
High-level input
V 0,65 x V V + 0,3 V
IH DD DD
voltage
Normal input
Low-level input
V -0,3 0,35 x V V
IL DD
voltage
Positive going
V 0,4 x V 0,7 x V V
ITP DD DD
threshold voltage
Negative going
Schmitt trigger input
V 0,3 x V 0,6 x V V
ITN DD DD
threshold voltage
Hysteresis voltage V 0,1 x V 0,4 x V V
hys DD DD
a
Operating temperature range T — — °C
a
a
Operating temperature range shall be specified by manufacturer for various purposes.

Table 18 – Output characteristics for 1,5 V normal range
Characteristics Symbol Condition Min. Max. Unit
High-level output voltage V I = -2 mA 0,75 x V — V

OH OH DD
Low-level output voltage V I = 2 mA — 0,25 x V V

OL OL DD
4.4.4 Wide range of operating supply voltage
Table 19 and Table 20 specify operating conditions and output characteristics for wide range
power supply, respectively.
60748-2-20 © IEC:2008 – 15 –
Table 19 – Operating conditions for 1,5 V wide range
Parameters Symbol Min. Max. Unit
Power supply voltage V 0,9 1,6 V
DD
High-level input
V 0,7 x V V + 0,3 V
IH DD DD
voltage
Normal input
Low-level input
V -0,3 0,3 x V V
IL DD
voltage
Positive going
V 0,35 x V 0,75 x V V
ITP DD DD
threshold voltage
Negative going
Schmitt trigger input
V 0,25 x V 0,65 x V V
ITN DD DD
threshold voltage
Hysteresis voltage V 0,1 x V 0,5 x V V
hys DD DD
a
Operating temperature range T — — °C
a
a
Operating temperature range shall be specified by manufacturer for various purposes.

Table 20 – Output characteristics for 1,5 V wide range
Characteristics Symbol Condition Min. Max. Unit
High-level output voltage V V – 0,2 — V
I = -100 μA
OH DD
OH
Low-level output voltage V I = 100 μA — 0,2 V

OL OL
4.5 Specifications for 1,2 V nominal power supply voltage
4.5.1 General
These specifications apply to CMOS-compatible circuits over the full operating temperature
range specified by manufacturer to be commercial, industrial, and/or military grade.
4.5.2 Absolute maximum continuous ratings
Table 21 specifies absolute maximum continuous ratings of the circuits.
Table 21 – Absolute maximum continuous ratings for nominal 1,2 V
Parameters Symbol Min. Max. Unit
Power supply voltage V -0,5 1,8 V
DD
V + 0,5
DD
DC input voltage V -0,5 V
IN
(1,8 V max)
V + 0,5
DD
DC output voltage V -0,5 V
OUT
(1,8 V max)
a
Storage temperature range T — — °C
STG
a
Storage temperature range shall be specified by manufacturer for various purposes.

– 16 – 60748-2-20 © IEC:2008
4.5.3 Normal range of operating supply voltage
Table 22 and Table 23 specify operating conditions and output characteristics for normal
range power supply, respectively.
Table 22 – Operating conditions for 1,2 V normal range
Parameters Symbol Min. Max. Unit
Power supply voltage V 1,1 1,3 V
DD
High-level input
V 0,65 x V V + 0,3 V
IH DD DD
voltage
Normal input
Low-level input
V -0,3 0,35 x V V
IL DD
voltage
Positive going
V 0,4 x V 0,7 x V V
ITP DD DD
threshold voltage
Negative going
Schmitt trigger input
V 0,3 x V 0,6 x V V
ITN DD DD
threshold voltage
Hysteresis voltage V 0,1 x V 0,4 x V V
hys DD DD
a
Operating temperature range T — — °C
a
a
Operating temperature range shall be specified by manufacturer for various purposes.

Table 23 – Output characteristics for 1,2 V normal range
Characteristics Symbol Condition Min. Max. Unit
High-level output voltage V I = -2 mA 0,75 x V — V

OH OH DD
Low-level output voltage V I = 2 mA — 0,25 x V V

OL OL DD
4.5.4 Wide range of operating supply voltage
Table 24 and Table 25 specify operating conditions and output characteristics for wide range
power supply, respectively.
60748-2-20 © IEC:2008 – 17 –
Table 24 – Operating conditions for 1,2 V wide range
Parameters Symbol Min. Max. Unit
Power supply voltage V 0,8 1,3 V
DD
High-level input
V 0,7 x V V + 0,3 V
IH DD DD
voltage
Normal input
Low-level input
V -0,3 0,3 x V V
IL DD
voltage
Positive going
V 0,35 x V 0,75 x V V
ITP DD DD
threshold voltage
Negative going
Schmitt trigger input
V 0,25 x V 0,65 x V V
ITN DD DD
threshold voltage
Hysteresis voltage V 0,1 x V 0,5 x V V
hys DD DD
a
Operating temperature range T — — °C
a
a
Operating temperature range shall be specified by manufacturer for various purposes.

Table 25 – Output characteristics for 1,2 V wide range
Characteristics Symbol Condition Min. Max. Unit
High-level output voltage V V – 0,1 — V
I = -100 μA
OH DD
OH
Low-level output voltage V I = 100 μA — 0,1 V

OL OL
4.6 Specifications for 1,0 V nominal power supply voltage
4.6.1 General
These specifications apply to CMOS-compatible circuits over the full operating temperature
range specified by manufacturer to be commercial, industrial, and/or military grade.
4.6.2 Absolute maximum continuous ratings
Table 26 specifies absolute maximum continuous ratings of the circuits.

– 18 – 60748-2-20 © IEC:2008
Table 26 – Absolute maximum continuous ratings for nominal 1,0 V
Parameters Symbol Min. Max. Unit
a
Power supply voltage V -0,4 1,4 V
DD
V + 0,4
DD
DC input voltage V -0,4 V
IN
(1,4 V max)
V + 0,4
DD
DC output voltage V -0,4 V
OUT
(1,4 V max)
b
Storage temperature range T — — °C
STG
a
The maximum voltage allowed between any two signals (input, output or input/output) pins or any signal pin
and V shall be less than 1,6 V.

DD
b
Storage temperature range shall be specified by manufacturer for various purposes.

4.6.3 Normal range of operating supply voltage
Table 27 and Table 28 specify operating conditions and output characteristics for normal
range power supply, respectively.
Table 27 – Operating conditions for 1,0 V normal range
Parameters Symbol Min. Max. Unit
Power supply voltage V 0,9 1,1 V
DD
High-level input
V 0,65 x V V + 0,2 V
IH DD DD
voltage
Normal input
Low-level input
V -0,2 0,35 x V V
IL DD
voltage
Positive going
V 0,4 x V 0,7 x V V
ITP DD DD
threshold voltage
Negative going
Schmitt trigger input
V 0,3 x V 0,6 x V V
ITN DD DD
threshold voltage
Hysteresis voltage V 0,1 x V 0,4 x V V
hys DD DD
a
Operating temperature range T — — °C
a
a
Operating temperature range shall be specified by manufacturer for various purposes.

Table 28 – Output characteristics for 1,0 V normal range
Characteristics Symbol Condition Min. Max. Unit
High-level output voltage V I = -2 mA 0,75 x V — V

OH OH DD
Low-level output voltage V I = 2 mA — 0,25 x V V

OL OL DD
60748-2-20 © IEC:2008 – 19 –
4.6.4 Wide range of operating supply voltage
Table 29 and Table 30 specify operating conditions and output characteristics for wide range
power supply, respectively.
Table 29 – Operating conditions for 1,0 V wide range
Parameters Symbol Min. Max. Unit
Power supply voltage V 0,7 1,1 V
DD
High-level input
V 0,7 x V V + 0,2 V
IH DD DD
voltage
Normal input
Low-level input
V -0,2 0,3 x V V
IL DD
voltage
Positive going
V 0,35 x V 0,75 x V V
ITP DD DD
threshold voltage
Negative going
Schmitt trigger input
V 0,25 x V 0,65 x V V
ITN DD DD
threshold voltage
Hysteresis voltage V 0,1 x V 0,5 x V V
hys DD DD
a
Operating temperature range T — — °C
a
a
Operating temperature range shall be specified by manufacturer for various purposes.

Table 30 – Output characteristics for 1,0 V wide range
Characteristics Symbol Condition Min. Max. Unit
High-level output voltage V I = -100 μA V – 0,1 — V

OH OH DD
Low-level output voltage V = 100 μA — 0,1 V
I
OL OL
– 20 – 60748-2-20 © IEC:2008
Annex A
(informative)
Threshold voltage test conditions of Schmitt trigger operation

A.1 Introduction
This annex gives an example of measurement method for DC characteristics of Schmitt
trigger input. The DUT is a Schmitt trigger input IC with inverted output.
A.2 Threshold voltages: V V
,
ITP ITN
The input signal is raised from a ground level in the measurement circuit shown in Figure A.1,
and the input voltage value for which the output logic state changes is determined as V .
ITP
The input signal is dropped from a power supply voltage level in the measurement circuit
shown in Figure A.1, and the input voltage value for which the output logic state changes is
determined as V .
ITN
A.3 Hysteresis voltage: V
hys
The hysteresis voltage can be obtained only from calculation: V – V .
ITP ITN
The details are given in Chapter III of IEC 60748-2.
V
DD
Input Output
A
V
IEC  341/08
Figure A.1 − DC characteristic measurement circuit of Schmitt-trigger input

60748-2-20 © IEC:2008 – 21 –
Bibliography
JEDEC Standard JESD8-C, Interface Standard for Nominal 3 V/3.3 V Supply Digital
Integrated Circuits
JEDEC Standard JESD8-5A, 2.5 V ± 0.2 V (Normal Range) and 1.8 V − 2.7 V (Wide Range)
Power Supply Voltage and Interface Standard for Non-terminated Digital Integrated Circuits
JEDEC Standard JESD8-7A, 1.8 V ± 0.15 V (Normal Range) and 1.2 V − 1.95 V (Wide Range)
Power Supply Voltage and Interface Standard for Non-terminated Digital Integrated Circuits
JEDEC Standard JESD8-11A, 1.5 V ± 0.1 V (Normal Range) and 0.9 V − 1.6 V (Wide Range)
Power Supply Voltage and Interface Standard for Non-terminated Digital Integrated Circuits
JEDEC Standard JESD8-12A, 1.2 V ± 0.1 V (Normal Range) and 0.8 V − 1.3 V (Wide Range)
Power Supply Voltage and Interface Standard for Non-terminated Digital Integrated Circuits
JEDEC Standard JESD8-14A, 1.0 V ± 0.1 V (Normal Range) and 0.7 V − 1.1 V (Wide Range)
Power Supply Voltage and Interface Standard for Non-terminated Digital Integrated Circuits

___________
– 22 – 60748-2-20 © CEI:2008
SOMMAIRE
AVANT-PROPOS.24
INTRODUCTION.26

1 Domaine d’application .27
2 Références normatives.27
3 Termes et définitions .27
4 Spécifications d’interface pour une basse tension d’alimentation inférieure à 3,3 V .28
4.1 Spécifications pour une tension d’alimentation nominale de 3,3 V .28
4.1.1 Généralités.28
4.1.2 Caractéristiques en régime continu maximales absolues .28
4.1.3 Gamme normale de tensions d’alimentation de fonctionnement .28
4.1.4 Gamme étendue de tensions d’alimentation de fonctionnement .29
4.2 Spécifications pour une tension d’alimentation nominale de 2,5 V .30
4.2.1 Généralités.30
4.2.2 Caractéristiques en régime continu maximales absolues .30
4.2.3 Gamme normale de tensions d’alimentation de fonctionnement .30
4.2.4 Gamme étendue de tensions d’alimentation de fonctionnement .31
4.3 Spécifications pour une tension d’alimentation nominale de 1,8 V .32
4.3.1 Généralités.32
4.3.2 Caractéristiques en régime continu maximales absolues .32
4.3.3 Gamme normale de tensions d’alimentation de fonctionnement .32
4.3.4 Gamme étendue de tensions d’alimentation de fonctionnement .33
4.4 Spécifications pour une tension d’alimentation nominale de 1,5 V .33
4.4.1 Généralités.33
4.4.2 Caractéristiques en régime continu maximales absolues .33
4.4.3 Gamme normale de tensions d’alimentation de fonctionnement .34
4.4.4 Gamme étendue de tensions d’alimentation de fonctionnement .34
4.5 Spécifications pour une tension d’alimentation nominale de 1,2 V .35
4.5.1 Généralités.35
4.5.2 Caractéristiques en régime continu maximales absolues .35
4.5.3 Gamme normale de tensions d’alimentation de fonctionnement .36
4.5.4 Gamme étendue de tensions d’alimentation de fonctionnement .36
4.6 Spécifications pour une tension d’alimentation nominale de 1,0 V .37
4.6.1 Généralités.
...