AM28F256 datasheet(21/35 Pages) AMD

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Am28F256

ABSOLUTE MAXIMUM RATINGS

Storage Temperature . . . . . . . . . . . . –65

°C to +150°C

Plastic Packages . . . . . . . . . . . . . . . –65

°C to +125°C

Ambient Temperature

with Power Applied . . . . . . . . . . . . . .–55

°C to + 125°C

Voltage with Respect To Ground

All pins except A9 and VPP (Note 1) .–2.0 V to +7.0 V

VCC (Note 1). . . . . . . . . . . . . . . . . . . .–2.0 V to +7.0 V

A9 (Note 2). . . . . . . . . . . . . . . . . . . . –2.0 V to +14.0 V

VPP (Note 2). . . . . . . . . . . . . . . . . . .–2.0 V to +14.0 V

Output Short Circuit Current (Note 3) . . . . . . 200 mA

Notes:

1. Minimum DC voltage on input or I/O pins is –0.5 V. During

voltage transitions, inputs may overshoot VSS to –2.0 V for

periods of up to 20 ns. Maximum DC voltage on input and

I/O pins is VCC + 0.5 V. During voltage transitions, input

and I/O pins may overshoot to VCC + 2.0V for periods up

to 20 ns.

2. Minimum DC input voltage on A9 and VPP pins is –0.5 V.

During voltage transitions, A9 and VPP may overshoot

VSS to –2.0 V for periods of up to 20 ns. Maximum DC

input voltage on A9 and VPP is +13.0 V which may

overshoot to 14.0 V for periods up to 20 ns.

3. No more than one output shorted to ground at a time. Du-

ration of the short circuit should not be greater than one

second.

Stresses above those listed under “Absolute Maximum

Ratings” may cause permanent damage to the device. This is

a stress rating only; functional operation of the device at these

or any other conditions above those indicated in the opera-

tional sections of this specification is not implied. Exposure of

the device to absolute maximum rating conditions for extended

periods may affect device reliability.

OPERATING RANGES

Commercial (C) Devices

Ambient Temperature (TA). . . . . . . . . . . .0°C to +70°C

Industrial (I) Devices

Ambient Temperature (TA). . . . . . . . . .–40°C to +85°C

Extended (E) Devices

Ambient Temperature (TA). . . . . . . . .–55°C to +125°C

VCC Supply Voltages

VCC . . . . . . . . . . . . . . . . . . . . . . . . +4.50 V to +5.50 V

VPP Voltages

Read . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to +12.6 V

Program, Erase, and Verify . . . . . . +11.4 V to +12.6 V

Operating ranges define those limits between which the

functionality of the device is guaranteed.

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