CAT28C256N-20 Datasheet, PDF(2/14 Page) ON Semiconductor

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CAT28C256N-20 Datasheet, PDF (2/14 Pages) ON Semiconductor – 256 kb Parallel EEPROM

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CAT28C256

DIP Package (P, L)

PIN CONFIGURATION

PLCC Package (N, G)

TSOP Package (8 mm X 13.4 mm) (T13, H13)

A14

A12

1 28

2 27

3 26

A6 4 25

A2 8 21

A1 9 20

A0 10 19

I/O0 11 18

I/O1 12 17

VCC

A13

A11

A10

I/O7

I/O6

I/O5

4 3 2 1 32 31 30

A4 7

A3 8

A2 9

A1 10

A0 11

NC 12

I/O0 13

14 1516 171819 20

A11

A10

I/O7

I/O6

AA119

AA138

VCC

A14

A12

I/O2 13 16 I/O4

VSS 14 15 I/O3

(Top Views)

A10

27 CE

I/O7

I/O6

I/O5

I/O4

I/O3

GND

I/O2

I/O1

I/O0

A6âA14

VCC

A0âA5

ADDR. BUFFER

& LATCHES

INADVERTENT

WRITE

PROTECTION

CONTROL

LOGIC

TIMER

ADDR. BUFFER

& LATCHES

ROW

DECODER

HIGH VOLTAGE

GENERATOR

DATA POLLING

AND

TOGGLE BIT

COLUMN

DECODER

Figure 1. Block Diagram

32,768 x 8

EEPROM

ARRAY

64 BYTE PAGE

I/O BUFFERS

I/O0âI/O7

http://onsemi.com

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