AM28F256A datasheet(19/35 Pages) AMD

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Am28F256A

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 + 2.0 V for periods up

to 20ns.

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.

Duration 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 op-

erational sections of this specification is not implied. Expo-

sure 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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