AS7C256A-15JIN datasheet(3/9 Pages) ALSC

Part #	AS7C256A-15JIN

Description	5V 32K X 8 CMOS SRAM (Common I/O)

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Manufacturer	ALSC [Alliance Semiconductor Corporation]

Direct Link	https://www.alliancememory.com

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3 / 9 page

AS7C256A

9/24/04; v.1.2

Alliance Semiconductor

P. 3 of 9

®

Recommended operating conditions

* V

IL min = –1.0V for pulse width less than 5ns.

** V

IH max = VCC + 2.0V for pulse width less than 5ns.

DC operating characteristics (over the operating range)1

Capacitance (f = 1MHz, Ta = room temperature, VCC = NOMINAL)4

Parameter

Symbol

Min

Typical

Max

Unit

Supply voltage

VCC

4.5

5.0

5.5

V

Input voltage

VIH**

2.2

–

VCC+0.5

V

VIL*

-0.5

–

0.8

V

Ambient operating temperature

commercial

TA

0–

70

oC

industrial

TA

–40

–

85

oC

Parameter

Sym

Test conditions

-10

-12

-15

-20

Unit Notes

Min Max Min Max Min Max Min Max

Input leakage

current

|ILI|

VCC = Max,

Vin = GND to VCC

–1–1–1–1

µA

Output leakage

current

|ILO|

VCC = Max,

VOUT = GND to VCC

–1–1–1–1

µA

Operating

power supply

current

ICC

VCC = Max, CE < VIL

f = fMax, IOUT = 0mA

–75

-

70

–

65–

60

mA

Standby power

supply current

ISB

VCC = Max, CE > VIH

f = fMax

–45–45–

40

–

40

mA

ISB1

VCC = Max, CE > VCC–0.2V

VIN < 0.2V or

VIN > VCC–0.2V, f = 0

–

2.0–2.0

–2.0

mA

Output voltage

VOL IOL = 8 mA, VCC = Min

–

0.4–0.4

–0.4

V

4

VOH IOH = –4 mA, VCC = Min

2.4–2.4–2.4

–2.4

–

V

4

Parameter

Symbol

Signals

Test conditions

Max

Unit

Input capacitance

CIN

A, CE, WE, OE

Vin = 0V

5

pF

I/O capacitance

CI/O

I/O

Vin = Vout = 0V

7

pF

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