AM29F040B datasheet(17/30 Pages) AMD

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Am29F040B

P R E L I M I NARY

ABSOLUTE MAXIMUM RATINGS

Storage Temperature

Plastic Packages . . . . . . . . . . . . . . . –65°C to +125°C

Ambient Temperature

with Power Applied. . . . . . . . . . . . . . –55°C to +125°C

Voltage with Respect to Ground

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

A9, OE# (Note 2) . . . . . . . . . . . . . –2.0 V to 12.5 V

All other pins (Note 1) . . . . . . . . . . –2.0 V to 7.0 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 undershoot VSS to –2.0 V

for periods of up to 20 ns. See Figure 5. 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 20 ns. See Figure 6.

2. Minimum DC input voltage on A9 pin is –0.5 V. During

voltage transitions, A9 and OE# may undershoot VSS to

–2.0 V for periods of up to 20 ns. See Figure 5. Maximum

DC input voltage on A9 and OE# is 12.5 V which may

overshoot to 13.5 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.

Figure 5.

Maximum Negative Overshoot

Waveform

Figure 6.

Maximum Positive Overshoot

Waveform

OPERATING RANGES

Commer cial (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 for ± 5% devices . . . . . . . . . . .+4.75 V to +5.25 V

VCC for± 10% devices . . . . . . . . . . . .+4.5 V to +5.5 V

Operating ranges define those limits between which the

functionality of the device is guaranteed.

20 ns

+0.8 V

–0.5 V

20 ns

–2.0 V

21445B-10

20 ns

VCC

+2.0 V

VCC

+0.5 V

20 ns

2.0 V

21445B-11

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