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HM6216255H Datasheet(PDF) 3 Page - Hitachi Semiconductor

Part No. HM6216255H
Description  4M high Speed SRAM (256-kword x 16-bit)
Download  17 Pages
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Maker  HITACHI [Hitachi Semiconductor]
Homepage  http://www.renesas.com/eng
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HM6216255H Datasheet(HTML) 3 Page - Hitachi Semiconductor

 
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HM6216255H Series
3
Pin Description
Pin name
Function
Pin name
Function
A0 to A17
Address input
UB
Upper byte select
I/O1 to I/O16
Data input/output
LB
Lower byte select
CS
Chip select
V
CC
Power supply
OE
Output enable
V
SS
Ground
WE
Write enable
NC
No connection
Block Diagram
Memory matrix
256 rows
× 8 columns ×
128 blocks
× 16 bit
(4,194,304 bits)
CS
VCC
VSS
A10 A8 A9 A12 A13 A14 A0 A15 A3 A4
Column I/O
Column decoder
I/O1
WE
Input
data
control
Row
decoder
OE
CS
CS
CS
LB
UB
I/O16
I/O9
I/O8
.
.
.
.
.
.
A1
A17
A7
A11
A16
A2
A6
A5
(LSB)
(MSB)
Internal
voltage
generater


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