AS7C256B datasheet(3/8 Pages) ALSC

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AS7C256B

12/5/06; V.1.0

Alliance Memory

P. 3 of 8

Recommended operating conditions

Note:

1 VIL min = –1.5V for pulse width less than 10ns, once per cycle.

DC operating characteristics (over the operating range)1

Notes:

All values are maximum guaranteed values.

fMax = 1/tRC, only address inputs cycling at fMax, f = 0 means that no inputs are cycling.

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

Note:

This parameter is guaranteed by device characterization, but is not production tested.

Parameter

Symbol

Min

Typical

Max

Unit

Supply voltage

VCC

4.5

5.0

5.5

Input voltage

VIH

2.2

–

VCC+0.5

VIL

(1)

-0.5(1)

–0.8

Ambient operating temperature (Industrial)

–40

–

Parameter

Symbol

Test conditions

AS7C256B-12

Unit

Min

Max

Input leakage current

LI|

VCC = Max,

Vin = GND to VCC

–

µA

Output leakage current

LO|

VCC = Max, CS = VIH,

VOUT = GND to VCC

–

µA

Operating power supply current

ICC

VCC = Max, CE ≤ VIL

f = fMax, IOUT = 0mA

–

160

Standby power supply current

ISB

VCC = Max, CE > VIH

f = fMax, IOUT = 0mA

–

ISB1

VCC = Max, CE > VCC–0.2V

VIN < GND + 0.2V or

VIN > VCC–0.2V, f = 0

(2)

–

Output voltage

VOL

IOL = 8 mA, VCC = Min

–

0.4

VOH

IOH = –4 mA, VCC = Min

2.4

–

Parameter

Symbol

Signals

Test conditions

Max

Unit

Input capacitance

CIN

A, CE, WE, OE

Vin = 3dV

I/O capacitance

CI/O

I/O

Vout = 3dV

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