mws5101 Intersil Corporation, mws5101 Datasheet - Page 2

• Manufacturer Part Number: mws5101
• Description: 256-word X 4-bit Lsi Static Ram
• Manufacturer: Intersil Corporation

NOTE: Logic 1 = High, Logic 0 = Low, X = Don’t Care.
Functional Block Diagram
Read
Write
Write
Standby
Standby
Output Disable
R/W
CS2
CSI
DI1
DI2
DI3
DI4
OD
A0
A1
A2
A3
A4
A5
A6
A7
†
†
†
†
†
†
†
†
†
†
†
†
†
†
†
†
†
20
19
17
18
4
3
2
1
21
9
11
13
15
5
6
7
INPUT PROTECTION
NETWORK
MODE
ALL COLUMNS
ALL ROWS
DESELECT
DESELECT
FUNCTION
FUNCTION
CONTROL
BUFFERS
BUFFERS
GATES
INPUT
INPUT
AND
AND
(5)
(4)
(3)
A
V
V
SS
DD
CHIP SELECT 1
DECODERS
CONTROL
(CS
ROW
X
X
0
0
0
1
(32)
B
1
)
† †
OUTPUT
PROTECTION
CIRCUIT
CHIP SELECT 2
MWS5101, MWS5101A
DECODERS
STORAGE
V
COLUMN
V
(8 x 32)
ARRAY
CONTROL
BIT (1)
SS
(CS
DD
OPERATIONAL MODES
(8)
X
X
1
1
1
0
C
2
)
INPUTS
6-57
DECODERS
STORAGE
COLUMN
(8 x 32)
ARRAY
BIT (2)
† † †
DISABLE (OD)
(8)
OUTPUT
OVER VOLTAGE
PROTECTION
CIRCUIT
X
X
0
0
1
1
STORAGE
DECODERS
COLUMN
(8 x 32)
ARRAY
BIT (3)
V
V
SS
DD
(8)
READ/WRITE
(R/W)
X
X
X
STORAGE
1
0
0
DECODERS
COLUMN
(8 x 32)
ARRAY
BIT (4)
(8)
BITS
(1-4)
Read
Data In
High Impedance
High Impedance
High Impedance
High Impedance
DRIVERS
BUFFER
OUTPUT
(4)
22
10
12
14
16
8
††
††
††
††
† † †
† † †
V
D01
D02
D03
D04
V
DD
SS