Block Diagram

Temperature Under Bias ................ -55°C to +125°C

Storage Temperature...................... -65°C to +150°C

Voltage on Any Pin with

Respect to Ground......................... -2.0V to +7.0V

(1)

Voltage on A9 with

Respect to Ground ...................... -2.0V to +14.0V

(1)

Respect to Ground....................... -2.0V to +14.0V

(1)

*NOTICE: Stresses beyond those listed under “Absolute Maxi-

mum Ratings” may cause permanent damage to the device.

This is a stress rating only and functional operation of the

device at these or any other conditions beyond those indi-

cated in the operational sections of this specification is not

implied. Exposure to absolute maximum rating conditions

for extended periods may affect device reliability.

Note:

1. Minimum voltage is -0.6V dc which may undershoot

to -2.0V for pulses of less than 20 ns. Maximum out-

shoot to +7.0V for pulses of less than 20 ns.

Absolute Maximum Ratings*

Operating Modes

Mode \ Pin

CE

OE

Ai

Outputs

Read

Ai

Output Disable

X

(1)

High Z

Standby

X

(1)

X

(1)

High Z

Ai

X

(1)

Ai

Ai

X

(1)

High Z

(3)

Identification

Code

2. Refer to Programming characteristics.

± 0.5V.

4. Two identifier bytes may be selected. All Ai inputs

AT27C256R

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