6-17

(8 x 32)

STORAGE

ARRAY

(5)

INPUT

BUFFERS

AND

ALL ROWS

DESELECT

FUNCTION

A0

A1

A2

A3

A4

21

1

2

3

4

(4)

GATES

DI1

DI2

DI3

DI4

15

13

11

9

(3)

INPUT

BUFFERS

AND

ALL COLUMNS

DESELECT

FUNCTION

A5

A6

A7

7

6

5

CSI

CS2

INPUT PROTECTION

18

17

19

CONTROL

A

CONTROL

C

CONTROL

B

(32)

ROW

DECODERS

BIT (1)

(8 x 32)

STORAGE

ARRAY

BIT (2)

(8 x 32)

STORAGE

ARRAY

BIT (3)

(8 x 32)

STORAGE

ARRAY

BIT (4)

BUFFER

DRIVERS

(4)

D01

D02

D03

D04

16

14

12

10

BITS

(1-4)

(8)

COLUMN

DECODERS

(8)

COLUMN

DECODERS

(8)

COLUMN

DECODERS

(8)

COLUMN

DECODERS

22

†

†

†

†

†

†

†

†

†

†

†

†

†

R/W

20

†

†

†

†††

††

††

††

††

8

†††

†

† †

†††

OUTPUT

NETWORK

PROTECTION

CIRCUIT

OVER VOLTAGE

PROTECTION

CIRCUIT

FIGURE 5. FUNCTIONAL BLOCK DIAGRAM FOR CDP1822 AND CDP1822C

OD

CDP1822, CDP1822C