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HN58C257AT-10 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics
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HN58C257AT-10
256k EEPROM (32-kword × 8-bit) Ready/Busy and RES function (HN58C257A)
Hitachi -> Renesas Electronics
HN58C257AT-10 Datasheet PDF : 25 Pages
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HN58C256A Series, HN58C257A Series
Pin Description
Pin name
Function
A0 to A14
Address input
I/O0 to I/O7
Data input/output
OE
Output enable
CE
Chip enable
WE
Write enable
V
CC
V
SS
RDY/
Busy
*
1
Power supply
Ground
Ready busy
RES
*
1
Reset
NC
No connection
Note: 1. This function is supported by only the HN58C257A series.
Block Diagram
Note: This function is supported by only the HN58C257A series.
V
CC
V
SS
RES
*
1
OE
CE
WE
RES
*
1
A0
to
A5
A6
to
A14
High voltage generator
Control logic and timing
Address
buffer and
latch
Y decoder
X decoder
I/O0
to
I/O7
RDY/
Busy
*
1
I/O buffer
and
input latch
Y gating
Memory array
Data latch
3
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