XM28C040 查看數據表（PDF） - Xicor -> Intersil

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XM28C040

5 Volt, Byte Alterable E2PROM

Xicor -> Intersil 

XM28C040

PIN DESCRIPTIONS

Addresses (A0–A18)

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 In/Data Out (I/O0–I/O7)

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

A0–A18

I/O0–I/O8

WE

CE

OE

VCC

VSS

NC

Description

Address Inputs

Data Input/Output

Write Enable

Chip Enable

Output Enable

+5V

Ground

No Connect

3873 PGM T01

2

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