EIAJ ED-5005A
Standard of Japan Electronics and Information Technology Industries Association

1.2V±0.1V (normal range) and 0.8V to 1.3V (wide range)
Power supply voltage and interface standard for
non-terminated digital integrated circuits
1.

Interface Standard

1.1 Purpose
To provide this standard of specification for uniformity, multiplicity of sources, elimination of confusion,and ease of device specification and design by users.
1.2 ScopeThis standard defines power supply voltage ranges, DC interface parameters for a family of
non-terminated digital circuits operating from a power supply of 1.2V 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 Absolute maximum continuous ratings
Parameter

SymbolNote 1

Test condition

RatingUnit-0.5~1.8

VPower supply voltage

VDD

DC input voltage

VIN

excluding I/O pins-0.5~VDD+0.5(£1.8 max)V

DC output voltage

VOUT

including I/O pins

-0.5~VDD+0.5(£1.8 max)V

DC input current

IIN

VIN<0V or V IN>VDD±20mA

DC output current

IOUT

VOUT<0V or VOUT>VDD±20mA

Storage temperature range

TSTG

Note 2

ﾟCNote 1: Absolute maximum ratings indicate the values beyond which damage to the device may
occur. Exposure to these conditions or conditions beyond thereof may adversely affectdevice reliability. Even within the ratings above, no functional operation is guaranteed if thedevice is not operated under recommended operating conditions.
Note 2: To be specified by manufacturers.

EIAJ ED-5005A
2.2 Recommended operating conditions
2.2.1

Normal range
Table 2 Normal range
Parameter

SymbolOperating range

UnitPower supply voltage

VDD

1.1~1.3

V

Operating temperature range

Ta

Note 3

ﾟC

Note 3:To be specified by manufacturers.
2.2.2

Wide range
Table 3

Wide range

Parameter

SymbolOperating range

UnitPower supply voltage

VDD

0.8~1.3

V

Operating temperature range

TaNote 4

ﾟC

Note 4:To be specified by manufacturers.
2.3 DC specifications
All specifications in the following tables apply across the operating temperature range.
2.3.1 Normal range
Table 4 Normal range
Parameter

SymbolNote 5

Test condition

MinMax

Unit

1.1

1.3

V

Power supply voltage

VDD

High-level input voltage

VIH

VOUT³VOH (min)0.65 VDD

VDD +0.3

V

Low-level input voltage

VIL

VOUT£V OL (max)-0.3

0.35 VDD

V

High-level output voltage

VOH

IOH=-2mA

0.75VDD

Low-level output voltage

VOL

IOL= 2mA

V
0.25 VDD

V

Note 5: VDD of the sending and receiving devices must track within 0.1V to maintain adequate
DC margins.
2.3.2

Wide range
Table 5ParameterSymbol

Wide range

Note 6

Test condition

MinMax

Unit

0.8

1.3

V

Power supply voltage

VDD

High-level input voltage

VIH

VOUT³VOH (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-0.1

Low-level output voltage

VOL

IOL= 100μA

V
0.1

V

Note 6: VDD of the sending and receiving devices must track within 0.1V to maintain adequate

DC margins.

EIAJ ED-5005A

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---1.1

1.3

V

VOUT≧VOH (min)0.4VDD

0.7VDDV

VOUT≦VOL (max)

0.3VDD

0.6VDDV

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

VH (⊿Ｖｔ)

Hysteresis Voltage

Vt+ - Vt-

0.1VDD

0.4VDDV

VOH

Output High Voltage

I OH= -2mA

0.75VDD―VVOL

Output Low Voltage

IOL=―

0.25VDD

V2mA

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 to thesending device.

2.4.2 Optional Schmitt trigger operation - Wide range
Table 7 Wide range

Note 12 and 13

SymbolParameter

Test Condition

MINMAXUnitVDD

Supply Voltage---0.8

1.3

V

VOUT≧VOH (min)0.35VD

0.75VDDV

VOUT≦VOL (max)

0.25VDD

0.65VDD

VＶｔ+ （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-0.1―

V

VOL

Output Low Voltage

I OL= 100μA

―0.1

V

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

EIAJ ED-5005A

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-5005A

Explanatory note1.

Purpose of establishment
This standard is established to achieve high speed and low voltage operation of digital integrated
circuits.
It defines power supply voltage ranges, DC interface parameters for a family of non-terminated digital
circuits operating from a power supply of 1.2V and driving/driven by parts of the same family, or mixedfamilies which comply with the input/output interface specifications.
Electronic Industries Association of Japan (EIAJ) and the Japan Electronic Development Association(JEIDA) have been merged effective on November 1, 2000, and become the Japan Electronics andInformation Technology Industries Association (JEITA).

2.

Review of discussion historyJEDEC JC-16 (Low Voltage & High Speed Interface Sub-committee) in U.S.A, hereinafter called
JEDEC, has committed to establish international standard of power supply voltage for digital circuits asa leader of the industry.
IC Low Voltage Operation Sub-committee, hereinafter called LVSC which was founded in 1992 as oneof sub-committees of EIAJ and presently belongs to JEITA has cooperated with JEDEC andcommunicated mutually since its foundation.
For a long time, power supply voltage of digital circuits had been kept at 5V in general since 80’s.
However, in 90’s, demand for low power supply voltage has surged to achieve low power consumption
and high noise immunity of electric equipment, mainly in portable equipment (notebook PC, etc.)
application, which requires longer battery life, and in high-performance equipment (WS, etc.) application,
which requires faster response.
In 90’s, a decade of deep sub-micron process technology (below 0.5μm process technology) hasarrived. Low power supply voltage has become crucial issue to ensure reliability while offering highdensity and high speed.
Based on the aforementioned background, JEDEC started discussion on standard of low power supply
voltage. First, in early 90’s they started from the discussion on standard of 3.3V. As a result, 3.3V
standard (JESD8-A) was established in June 1994 and consequently 2.5V standard (JESD8-5) inOctober 1995, 1.8V standard (JESD8-7) in February 1997 and 1.5V standard (JESD8-11) in October
2000.
LVSC also began the discussion on standard of low power supply voltage in April 1996, following
JEDEC. It was encompassing penetration of 3.3V standard and delivery of much lower voltage standard
from the second half of 90’s. JEITA announced 3.3V standard (EIAJ ED-5001), 2.5V standard (EIAJED-5002) and 1.8V standard (EIAJ ED-5003) in May 1998 and the 1.5V standard (EIAJ ED-5004) inJune 2000. Figures of these standards shall be identical to those of JEDEC in order to deliver unified
symbols for above JEDEC standards.
Discussion on 1.2V standard was started by both JEDEC and LVSC in December 1999. LVSC

EIAJ ED-5005A
submitted its proposed 1.2V standard to JEDEC in June 2000. Accordingly JEDEC approved 1.2Vstandard, which reflects the proposal of LVSC at the JEDEC meeting in September 2000. However,regarding to absolute maximum ratings, JEDEC’s proposal was adopted.
Based on the result of JEDEC meeting, JEITA’s standard of 1.2V power supply voltage was finalized inFebruary 2001.
This standard consists of normal range for regulated operation and wide range for battery operation,
taking in consideration of 0.13μm class IC.
After standardizing the dc standard, discussion on Schmitt trigger input standard was started by JEITA /LVSC in February 2003. JEITA/LVSC submitted its proposed Schmitt trigger input standard to JEDEC
in March 2004, for the first time. JEDEC’s discussion on Schmitt trigger input standard was begun bythis proposal. The task-group was organized by JEITA / LVSC and JEDEC at the JEDEC meeting inJune 2004. It has decided that the proposal of Schmitt trigger standard to be added into existing dcstandard. Finally, the proposal of Schmitt trigger input standard was approved at the JEDEC meeting inDecember 2004. Based on the result of JEDEC meeting, JEITA’s revised standard of 1.2V power
supply voltage was revised as ED-5005A in May 2005.

EIAJ ED-5005A
3.

Members of discussion
This standard was discussed and determined by the IC Low Voltage Operation Sub-committee, which
belongs to the Group on Integrated Circuits of Technical Standardization Committee on Semiconductor
Devices.
The members are as listed below.

＜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 Inoue

Sharp 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 UnoFujitsu VLSI Ltd.

Guest