Pin Assignment

Pin Description

Pin Name

I/O/C/P

Description

A0~A15

I

Address inputs

DQ0~DQ7

I/O

Data inputs/outputs

CE

C

Chip enable

OE/VPP

C/P

Output enable/program voltage supply

NC

—

No connection

Absolute Maximum Ratings

Operation Temperature Commercial ...................................................................................0

Storage Temperature ......................................................................................................... –65

Applied VCC Voltage with Respect to GND....................................................................... –0.6V to 7.0V

Applied Voltage on Input Pin with Respect to GND ......................................................... –0.6V to 7.0V

Applied Voltage on A9 Pin with Respect to GND ............................................................ –0.6V to 13.5V

Applied VPP Voltage with Respect to GND ......................................................................–0.6V to 13.5V

Applied READ Voltage (Functionality is guaranteed between these limits) ................... +3V to +3.6V

Note: These are stress ratings only. Stresses exceeding the range specified under “Absolute Maxi-

mum Ratings” may cause substantial damage to the device. Functional operation of this device

at other conditions beyond those listed in the specification is not implied and prolonged

exposure to extreme conditions may affect device reliability.

HT27LC512

2

6th May ’99