TE

CH

tm

T224162B

Taiwan Memory Technology, Inc. reserves the right P. 3

Publication Date: AUG. 2000

to change products or specifications without notice.

Revision:L

ABSOLUTE MAXIMUM RATINGS*

Voltage on Any pin Relative to VSS..... -1V to +7V

Operating Temperature, Ta (ambient) ..0

°C to +70°C

Storage Temperature (plastic)........ -55

°C to +150°C

Power Dissipation ............................…...........

1.0W

Short Circuit Output Current.......…............... 50mA

*Stresses greater than those listed under "Absolute

Maximum Ratings" may cause permanent damage to

the device. This is a stress rating only and functional

operation of the device at these or any other

conditions above those indicated in the operational

sections of this specification is not implied. Exposure

to absolute maximum rating conditions for extended

periods

may

affect

reliability.

DC ELECTRICAL CHARACTERISTICS AND RECOMMENDED

OPERATING CONDITIONS

(0

°C ≤ Ta ≤ 70°C; VCC = 5V ± 10 % unless otherwise noted)

DESCRIPTION

CONDITIONS

SYM.

MIN

MAX

UNITS

NOTES

Supply Voltage

Vcc

4.5

5.5

V

1

Supply Voltage

Vss

0

0

V

Input High (Logic) voltage

VIH

2.4

Vcc+1

V

1

Input Low (Logic) voltage

VIL

-1.0

0.8

V

1

Input Leakage Current

0V

≤ VIN ≤ 7V

ILI

-10

10

uA

Output Leakage Current

0V

≤ VOUT≤ 7V

Output(s) disabled

ILO

-10

10

uA

Output High Voltage

IOH = -5 mA

VOH

2.4

Vcc

V

Output Low Voltage

IOL = 4.2 mA

VOL

0

0.4

V

Note: 1.All Voltages referenced to Vss

MAX

DESCRIPTION

CONDITIONS

SYM. -22 -25 -28 -35 -45 -50UNITSNOTES

Operating Current

RAS ,CAS cycling , tRC = min Icc1 190 180 170 150 130 110 mA

1,2

CAS =VIH, DOUT=High-Z

4

4

4

4

4

4

mA

Standby Current

Vcc-0.2V

Icc2

2

2

2

2

2

2

mA

RAS -only refresh

Current

tRC = min

Icc3 190 180 170 150 130 110 mA

2

Standby Current

RAS =VIH, CAS =VIL

Icc5 5

5

5

5

5

5

mA

1

CAS

Refresh Current

tRC = min

Icc6 190 180 170 150 130 110

mA

EDO Page Mode Current tPC = min

Icc7 190 180 170 150 130 110

mA

1,3

Note: 1. Icc depends on output load condition when the device is selected.

Icc max is specified at the output open condition.

2. Address can be changed twice or less while RAS = VIL.