SYMBOL

PARAMETER

TEST CONDITIONS

MIN

MAX

UNITS

Input Low Voltage

(Note 4)

– 0.1

0.8

V

Input High Voltage

(Note 4)

2.0

V

Output Low Voltage

0.4

V

Output High Voltage

2.4

V

Comm'l

200

µA

(Note 1)

Ind/Mil

500

µA

Comm'l

3

mA

Ind/Mil

5

mA

(Notes 1 and 3)

Comm'l

25

mA

Outputs Not Loaded

Ind/Mil

30

mA

(Notes 2 and 3)

Comm'l

50

mA

Outputs Not Loaded

Ind/Mil

60

mA

100

µA

V

Input Leakage Current

–10

10

µA

Output Leakage Current

–10

10

µA

PARAMETER

SYMBOL

57C256F-35

57C256F-45

57C256F-55

57C256F-70

UNITS

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

Address to Output Delay

35

45

55

70

CE to Output Delay

35

45

55

70

OE to Output Delay

15

20

25

30

ns

Output Disable to Output Float

20

20

25

30

Address to Output Hold

0000

OPERATING RANGE

RANGE

TEMPERATURE

Commercial

0°C to +70°C

+5V ± 10%

Industrial

–40°C to +85°C

+5V ± 10%

Military

–55°C to +125°C

+5V ± 10%

WS57C256F

3-14

ABSOLUTE MAXIMUM RATINGS*

Storage Temperature............................–65° to + 150°C

Voltage on any Pin with

Respect to Ground ....................................–0.6V to +7V

ESD Protection ..................................................

Stresses above 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 of

time may affect device reliability.

NOTES:

4. These are absolute voltages with respect to device ground pin and

include all overshoots due to system and/or tester noise.

3. Add 3 mA/MHz for A.C. power component.

Do not attempt to test these values without suitable equipment.