ABSOLUTE MAXIMUM RATINGS
Storage Temperature
OTP Products. . . . . . . . . . . . . . . . . . –65°C to +125°C
All Other Products . . . . . . . . . . . . . . –65°C to +150°C
Ambient Temperature
with Power Applied. . . . . . . . . . . . . . –55°C to +125°C
Voltage with Respect to V
SS
All pins except A9, V
PP
, V
CC
. . –0.6 V to V
CC
+ 0.6 V
A9 and V
PP
(Note 2) . . . . . . . . . . . . . –0.6 V to 13.5 V
V
CC
(Note 1). . . . . . . . . . . . . . . . . . . . . –0.6 V to 7.0 V
OPERATING RANGES
Commercial (C) Devices
Ambient Temperature (T
A
) . . . . . . . . . . .0°C to +70°C
Industrial (I) Devices
Ambient Temperature (T
A
) . . . . . . . . .–40°C to +85°C
Extended (E) Devices
Ambient Temperature (T
A
) . . . . . . . .–55°C to +125°C
Supply Read Voltages
V
CC
for ± 5% devices . . . . . . . . . . +4.75 V to +5.25 V
V
CC
for ± 10% devices . . . . . . . . . +4.50 V to +5.50 V
Operating ranges define those limits between which the func-
tionality of the device is guaranteed.
Notes:
1. Minimum DC voltage on input or I/O pins –0.5 V. During
voltage transitions, the input may overshoot V
SS
to –2.0 V
for periods of up to 20 ns. Maximum DC voltage on input
and I/O pins is V
CC
+ 5 V. During voltage transitions, input
and I/O pins may overshoot to V
CC
+ 2.0 V for periods up
to 20 ns.
2. Minimum DC input voltage on A9 is –0.5 V. During voltage
transitions, A9 and V
PP
may overshoot V
SS
to –2.0 V for
periods of up to 20 ns. A9 and V
PP
must not exceed +13.5
V at any time.
Stresses above those listed under “Absolute Maximum Rat-
ings” 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 ratings for extended periods
may affect device reliability.
Am27C256
7
AMD [ ADVANCED MICRO DEVICES ]
