XM28C040

2

PIN DESCRIPTIONS

The Address inputs select an 8-bit memory location

during a read or write operation.

Chip Enable (

CE)

The Chip Enable input must be LOW to enable all read/

write operations. When

CE is HIGH, power consumption

is reduced (see Note 4).

Output Enable (

OE)

The Output Enable input controls the data output buffers

and is used to initiate read operations.

Data is written to or read from the XM28C040 through

the I/O pins.

Write Enable (

WE)

The Write Enable input controls the writing of data to the

XM28C040.

PIN NAMES

Symbol

Description

Address Inputs

Data Input/Output

WE

Write Enable

CE

Chip Enable

OE

Output Enable

+5V

Ground

NC

No Connect

3873 PGM T01