L640DU21NF datasheet(35/57 Pages) AMD

35 / 57 page

January 22, 2007 22366C6

Am29LV640D/Am29LV641D

D A TA

SH EE T

ABSOLUTE MAXIMUM RATINGS

Storage Temperature

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

°C to +150°C

Ambient Temperature

with Power Applied. . . . . . . . . . . . . . –65

°C to +125°C

Voltage with Respect to Ground

CC (Note 1) . . . . . . . . . . . . . . . . . –0.5 V to +4.0 V

IO . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to +5.5 V

A9, OE#, ACC, and RESET#

(Note 2) . . . . . . . . . . . . . . . . . . . . –0.5 V to +12.5 V

All other pins (Note 1) . . . . . . –0.5 V to V

CC +0.5 V

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

Notes:

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

Dur ing voltage transitions, input or I/O pins may

overshoot V

SS to –2.0 V for per iods of up to 20 ns.

Maximum DC voltage on input or I/O pins is VCC +0.5 V.

See Figure 7. During voltage transitions, input or I/O pins

may overshoot to V

CC +2.0 V for periods up to 20 ns. See

Figure 8.

2. Minimum DC input voltage on pins A9, OE#, ACC, and

RESET# is –0.5 V. During voltage transitions, A9, OE#,

ACC, and RESET# may overshoot V

SS to –2.0 V for

periods of up to 20 ns. See Figure 7. Maximum DC input

voltage on pin A9, OE#, ACC, and RESET# is +12.5 V

which may overshoot to +14.0 V for periods up to 20 ns.

3. No more than one output may be 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

operational sections of this data sheet is not implied.

Exposure of the device to absolute maximum rating

conditions for extended periods may affect device reliability.

OPERATING RANGES

Industrial (I) Devices

Ambient Temperature (T

A) . . . . . . . . . –40°C to +85°C

Supply Voltages

CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0–3.6 V

IO . . . . . . . . . . . . . . . . . either 1.8–2.9 V or 3.0–5.0 V

(see “Ordering Information” on page 9)

Operating ranges define those limits between which the

functionality of the device is guaranteed.

–0.5 V

20 ns

+0.8 V

20 ns

–2.0 V

Figure 7.

Maximum Negative

Overshoot Waveform

20 ns

+2.0 V

+0.5 V

20 ns

2.0 V

Figure 8.

Maximum Positive

Overshoot Waveform

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