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CDP1822 데이터 시트보기 (PDF) - Intersil
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CDP1822
256-Word x 4-Bit LSI Static RAM
Intersil
CDP1822 Datasheet PDF : 8 Pages
1
2
3
4
5
6
7
8
CDP1822, CDP1822C
A0
†
4
†
3
A1
†
2
A2
†
1
A3
A4
†
21
(5)
INPUT
BUFFERS
AND
ALL ROWS
DESELECT
FUNCTION
DI1
†
†
9
11
DI2
†
13
DI3
DI4
†
15
(4)
GATES
(32)
ROW
DECODERS
22
† † †
V
DD
(8 x 32)
STORAGE
ARRAY
BIT (1)
(8 x 32)
STORAGE
ARRAY
BIT (2)
(8 x 32)
STORAGE
ARRAY
BIT (3)
(8 x 32)
STORAGE
ARRAY
BITS
(4)
BUFFER
DRIVERS
(1-4)
BIT (4)
10
††
D01
12
††
D02
14
††
D03
16
††
D04
A5
†
5
†
6
A6
†
7
A7
(3)
INPUT
BUFFERS
AND
ALL COLUMNS
DESELECT
FUNCTION
†
20
R/W
CSI
†
19
†
17
CS2
†
18
OD
CONTROL
A
V
DD
CONTROL
B
(8)
(8)
COLUMN
COLUMN
DECODERS DECODERS
(8)
COLUMN
DECODERS
(8)
COLUMN
DECODERS
CONTROL
C
V
DD
V
DD
8
†††
V
SS
V
SS
†
INPUT PROTECTION
NETWORK
V
SS
† †
OUTPUT
PROTECTION
CIRCUIT
V
SS
† † †
OVER VOLTAGE
PROTECTION
CIRCUIT
FIGURE 5. FUNCTIONAL BLOCK DIAGRAM FOR CDP1822 AND CDP1822C
6-17
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