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DS2050W 3.3V Single-Piece 4Mb
Nonvolatile SRAM
Pin Description
BALLS
A1, A2, A3, A4
B1, B2, B3, B4
C1, C2, C3, C4
D1, D2, D3, D4
E1, E2, E3, E4
F1, F2, F3, F4
G1, G2, G3, G4
H1, H2, H3, H4
J1, J2, J3, J4
K1, K2, K3, K4
L1, L2, L3, L4
M1, M2, M3, M4
N1, N2, N3, N4
P1, P2, P3, P4
R1, R2, R3, R4
T1, T2, T3, T4
U1, U2, U3, U4
V1, V2, V3, V4
W1, W2, W3, W4
Y1, Y2, Y3, Y4
A17, A18, A19, A20
B17, B18, B19, B20
C17, C18, C19, C20
D17, D18, D19, D20
E17, E18, E19, E20
F17, F18, F19, F20
G17, G18, G19, G20
H17, H18, H19, H20
J17, J18, J19, J20
K17, K18, K19, K20
L17, L18, L19, L20
M17, M18, M19, M20
NAME
GND
N.C.
A15
A16
RST
V CC
WE
OE
CE
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
GND
GND
GND
GND
A18
A17
A14
A13
A12
A11
A10
A9
A8
A7
A6
DESCRIPTION
Ground
No Connection
Address Input 15
Address Input 16
Open-Drain Reset Output
Supply Voltage
Write-Enable Input
Output-Enable Input
Chip-Enable Input
Data Input/Output 7
Data Input/Output 6
Data Input/Output 5
Data Input/Output 4
Data Input/Output 3
Data Input/Output 2
Data Input/Output 1
Data Input/Output 0
Ground
Ground
Ground
Ground
Address Input 18
Address Input 17
Address Input 14
Address Input 13
Address Input 12
Address Input 11
Address Input 10
Address Input 9
Address Input 8
Address Input 7
Address Input 6
BALLS
N17, N18, N19, N20
P17, P18, P19, P20
R17, R18, R19, R20
T17, T18, T19, T20
U17, U18, U19, U20
V17, V18, V19, V20
W17, W18, W19, W20
Y17, Y18, Y19, Y20
A5, B5, C5, D5
A6, B6, C6, D6
A7, B7, C7, D7
A8, B8, C8, D8
A9, B9, C9, D9
A10, B10, C10, D10
A11, B11, C11, D11
A12, B12, C12, D12
A13, B13, C13, D13
A14, B14, C14, D14
A15, B15, C15, D15
A16, B16, C16, D16
U5, V5, W5, Y5
U6, V6, W6, Y6
U7, V7, W7, Y7
U8, V8, W8, Y8
U9, V9, W9, Y9
U10, V10, W10, Y10
U11, V11, W11, Y11
U12, V12, W12, Y12
U13, V13, W13, Y13
U14, V14, W14, Y14
U15, V15, W15, Y15
U16, V16, W16, Y16
NAME
A5
A4
A3
A2
A1
A0
GND
GND
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
DESCRIPTION
Address Input 5
Address Input 4
Address Input 3
Address Input 2
Address Input 1
Address Input 0
Ground
Ground
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
8
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