EIAJ ED-5003A
Standard of Japan Electronics and Information Technology Industries Association

1.8V±0.15V (Normal Range), and 1.2V to 1.95V (Wide Range)
Power Supply Voltage and Interface Standard for
Nonterminated Digital Integrated Circuit
1.

Interface Standard

1.1

PurposeTo provide this standard of specifications for uniformity, multiplicity of sources, elimination ofconfusion, and ease of device specification and design by users.

1.2

Scope
This standard defines power supply voltage ranges, DC interface parameters for a family of
nonterminated digital circuits operating from a power supply of 1.8V and driving/driven by parts of thesame family, or mixed families which comply with the input/output interface specifications.
The specifications in this standard represent a minimum set or "base line" set of interfaces for
CMOS-compatible circuits.

2.

Standard specifications
All voltages listed are referenced to ground except where noted.

2.1

Absolute maximum continuous ratings
Table 1
Parameter

Absolute maximum continuous ratings
SymbolTest condition

Note 1RatingUnit-0.5 ～2.5 VV

excluding I/O pins

-0.5～VDD +0.5(≦2.5max)

VVOUT

including I/O pins-0.5～VDD+0.5(≦2.5 max)V

DC input current

IIN

VIN＜0V or VIN＞VDD±20mA

DC output current

IOUT

VOUT＜0V or VOUT＞VDD±20mA

Storage temperature range

TSTG

Power supply voltage

VDD

DC input voltage

VIN

DC output voltage

Note 2℃

Note 1: Absolute maximum continuous ratings are those values beyond which damage to the device mayoccur. Exposure to these conditions or conditions beyond those indicated may adversely affectdevice reliability. Functional operation under absolute maximum conditions is not implied, if it isbeyond recommended operating conditions.
Note 2: Specified by manufacturer for various purposes, respectively.

EIAJ ED-5003A

2.2

Recommended operating conditions

2.2.1 Normal range
Table 2

Normal range

Parameter

SymbolOperating range

UnitPower supply voltage

VDD

1.65～1.95

V

Operating temperature range

Ta

Note 3℃

Note 3: Specified by manufacturer for various purposes, respectively.
2.2.2 Wide range
Table 3

Wide range

Parameter

SymbolOperating range

UnitPower supply voltage

VDD

1.2～1.95

V

Operating temperature range

Ta

Note 4℃

Note 4: Specified by manufacturer for various purposes, respectively.

2.3

DC specifications
All specifications in the following tables apply across the operating temperature range.

2.3.1 Normal range

Parameter

Table 4

Normal range

SymbolTest condition

MinMaxUnit

Power supply voltage

VDD

1.65

1.95

V

High-level input voltage

VIH

0.65 VDD

VDD +0.3

V

Low-level input voltage

VIL－0.3

0.35 VDD

V

High-level output voltage

VOH

IOH＝ -2mA

Low-level output voltage

VOL

IOL＝ 2mA

VDD－0.45

V0.45

VMinMax

Unit

1.2

1.95

V

2.3.2 Wide range
Table 5ParameterSymbol

Wide range
Test condition

Power supply voltage

VDD

High-level input

VIH

VOUT≧VOH (min)0.7 VDD

VDD +0.3

V

Low-level input voltage

VIL

VOUT≦VOL (max)－0.3

0.3 VDDV

High-level output voltage

VOH

IOH＝ -100μA

VDD－0.2

Low-level output voltage

VOL

IOL＝ 100μA

V
0.2

V

EIAJ ED-5003A

2.4 Optional DC electrical characteristics for Schmitt trigger operation
All specifications in the following tables apply across the operating temperature range.

2.4.1 Optional Schmitt trigger operation - Normal range
Table 6

Normal range

Note 10 and 11Symbol

Parameter

Test Condition

MIN

MAX

Unit

VDD

Supply Voltage---1.65

1.95

VVOUT≧VOH (min)0.4VDD

0.7VDDV

VOUT≦VOL (max)

0.3VDD

0.6VDDV

0.4VDD

V

Positive Going Threshold

Ｖｔ+ （Ｖｐ ）Ｖｔ- （Ｖn ）Voltage
Negative Going Threshold
Voltage

VH (⊿Ｖｔ)

Hysteresis Voltage

Vt+ - Vt-

0.1VDD

VOH

Output High Voltage

I OH= -2mA

VDD-0.45

VOL

Output Low Voltage

IOL=V
0.45

2mA

V

Note 10: VDD of the sending and receiving devices must track within 0.1 V to maintain adequate dc
margins.
Note 11: For Vt+ (Vp) and Vt- (Vn), VDD refers to the receiving device. For VOH and VOL, VDD refers tothe sending device.

2.4.2 Optional Schmitt trigger operation - Wide range
Table 7

Wide range

Note 12 and 13

SymbolParameter

Test Condition

MIN

MAX

Unit

VDD

Supply Voltage---1.2

1.95

VVOUT≧VOH (min)0.35VD

0.75VDDV

VOUT≦VOL (max)

0.25VDD

0.65VDDV

Ｖｔ+ （Ｖｐ ）Ｖｔ- （Ｖn ）Positive Going Threshold
Voltage
Negative Going Threshold
Voltage

VH (⊿Ｖｔ)

Hysteresis Voltage

Vt+ - Vt-

0.1VDD

0.5VDDV

VOH

Output High Voltage

IOH= -100μA

VDD-0.2―VVOL

Output Low Voltage

I OL= 100μA

―0.2

V

Note 12: VDD of the sending and receiving devices must track within 0.1 V to maintain adequate dcmargins.
Note 13: For Vt+ (Vp) and Vt- (Vn), VDD refers to the receiving device. For VOH and VOL, VDD refers toEIAJ ED-5003A
the sending device.

EIAJ ED-5003A

3 Test conditions
3.1 Positive Going Threshold Voltage : Vt+ (Vp)
Input signal is raised from a grand level in the measurement circuit shown in Fig. 1 , and the input
voltage value of which output logic changed is determined as Vt+ (Vp).
3.2 Negative Going Threshold Voltage : Vt- (Vn)
Input signal is dropped from a power supply voltage level in the measurement circuit shown in Fig.
1 , and the input voltage value of which output logic changed is determined as Vt- (Vn).

Fig. 1 DC characteristic measurement circuit of Schmitt-trigger input

EIAJ ED-5003A

Explanatory note1.

Purpose of establishment
This standard is enacted to accomplish a high speed and a low voltage operation of digital integratedcircuits.
This standard defines power supply voltage ranges, DC interface parameters for a family of
nonterminated digital circuits operating from a power supply of 1.8V and driving/driven by parts of thesame family, or mixed families which comply with the input/output interface specifications.

2.

Review of discussion historyJEDEC JC-16 (Low Voltage & High Speed Interface Sub-committee), called JEDEC after here,
which belongs to EIA (Electronic Industries Association of U.S.A), enacted substantially the standardof power supply voltage for digital circuits in the world.
IC Low Voltage Operation Sub-committee which belongs to EIAJ (Electronic Industries Association ofJapan) has been cooperation with JEDEC and communicated mutually, since it was founded in 1992.
A power supply voltage of digital circuits had been kept 5V, actually for a long time from 1980’s.
But, in 1990’s, a demand of low power supply voltage has become increasing to attain a low power
consumption and a high noise immunity of electric equipments, in a main application of portableequipments (note PC, etc) which need a long battery operation and high performance equipments (WS,etc) which require a high speed.
In 1990’s, also an age of deep sub-micron process technology (below 0.5μm process technology) hasbegun.

Needs of low power supply voltage have become the most important issue to obtain a keepingof reliability and continuities of the trends of high density, high speed, together.
According to above back ground, discussion for standard of low power supply voltage, firstly 3.3V,
have begun in JEDEC, from early of 1990’s. 3.3V standard (JESD8-A) was enacted in June,1994,2.5V standard (JESD8-5) was in October, 1995 and 1.8V standard (JESD8-7) was in February,
1997, respectively.
Especially, 1.8V JEDEC standard (JESD8-7) was composed of a normal range for regulated
operation and a wide range for battery operation, supposing an age of 0.18μm class IC.
IC Low Voltage Operation Sub-committee began the discussion for standard of low power supply
voltage since April, 1996 in EIAJ, according to JEDEC's activities of power supply discussion, inanticipation of a real popularization of 3.3V power supply voltage from the half of 1990’s and comingof next lower supply voltage than 3.3V.
EIAJ standard of 1.8V power supply voltage was established in May, 1998.

This standard

corresponds to that of JEDEC about specifications, because it has been already known and usedwidely in the world. But, this standard is amended from that of JEDEC about notation and sentence
for accomplishing the unify of them among three JEDEC standards (3.3V, 2.5V, 1.8V).
After standardizing the dc standard, discussion on Schmitt trigger input standard was started by JEITAEIAJ ED-5003A/ LVSC in February 2003. JEITA/LVSC submitted its proposed Schmitt trigger input standard toJEDEC in March 2004, for the first time. JEDEC’s discussion on Schmitt trigger input standard wasbegun by this proposal. The task-group was organized by JEITA / LVSC and JEDEC at the JEDEC
meeting in June 2004. It has decided that the proposal of Schmitt trigger standard to be added into
existing dc standard. Finally, the proposal of Schmitt trigger input standard was approved at theJEDEC meeting in December 2004. Based on the result of JEDEC meeting, JEITA’s revised standardof 1.8V power supply voltage was revised as ED-5003A in May 2005.

3.

Members of discussion
This standard has been discussed by the IC Low Voltage Operation Sub-committee which belongs toGroup on Integrated Circuits of Technical Standardization Committee on Semiconductor Devices.
The members are shown as following.

＜Technical Standardization Committee on Semiconductor Devices＞
ChairmanHisao Kasuga

NEC Corp.

＜Group on Integrated Circuits＞
ChairmanHisao Kasuga

NEC Corp.

＜IC Low Voltage Operation Sub-Committee＞Chairman

Haruyoshi Takaoka

Fujitsu Ltd.

Vice-chairman

Kohji Hosokawa

IBM Japan, Ltd.

MemberMasahiro Kurimoto

Oki Electric Industry Co.,Ltd.

Hidemitsu Baba

SANYO Electric Co.,Ltd.

Koji InoueSharp Corp.

Akira Nakada

Seiko Epson Corp.

Mitsuo Soneta

Sony Corp.

Masanori Kinugasa

Toshiba Corp.

Takashi Akioka

Renesas Corp.

Takefumi Yoshikawa

Matsushita Electric Industrial Co.,Ltd.

Akitoshi Watanabe

Rohm Co.,Ltd.

Kazuo Yamaguchi

TOSHIBA LSI System Support Corp.

Osamu Uno

Fujitsu VLSI Ltd.

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