HM62256BLFP-4SLT 查看數據表（PDF） - Hitachi -> Renesas Electronics
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HM62256BLFP-4SLT Datasheet PDF : 15 Pages
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HM62256B Series
Block Diagram
(MSB) A12
A5
A7
A6
A8
A13
A14
A4
(LSB) A3
•
•
•
Memory Matrix
•
Row
•
•
Decoder •
512 × 512
•
•
•
V CC
V SS
I/O0
•
•
•
•
•
I/O7
CS
WE
OE
•
Column I/O
•
•
•
Input
•
Data
Column Decoder
•
Control
•
A2 A1 A0 A10 A9 A11
(LSB)
(MSB)
••
Timing Pulse Generator
Read/Write Control
•
•
•
•
•
•
•
Function Table
WE
X
H
H
L
L
Note:
CS
OE
H
X
L
H
L
L
L
H
L
L
X: H or L
Mode
Not selected
Output disable
Read
Write
Write
VCC Current
ISB, ISB1
I CC
I CC
I CC
I CC
I/O Pin
High-Z
High-Z
Dout
Din
Din
Ref. Cycle
—
—
Read cycle (1)–(3)
Write cycle (1)
Write cycle (2)
4
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