hn58v256a Renesas Electronics Corporation., hn58v256a Datasheet - Page 3

• Manufacturer Part Number: hn58v256a
• Description: Memory>eeprom>parallel Eeprom
• Manufacturer: Renesas Electronics Corporation.

HN58V256A Series, HN58V257A Series
Pin Description
Pin name
A0 to A14
I/O0 to I/O7
OE
CE
WE
V
V
RDY/Busy*
RES*
NC
Note:
Block Diagram
Note: 1. This function is supported by only the HN58V257A series.
Rev.5.00, Nov. 17.2003, page 3 of 22
V
V
RES
RES
OE
CE
WE
A0
A5
A6
A14
to
CC
SS
SS
CC
to
*
*
1
1
1
1. This function is supported by only the HN58V257A series.
1
Address
buffer and
latch
High voltage generator
Control logic and timing
X decoder
Y decoder
Function
Address input
Data input/output
Output enable
Chip enable
Write enable
Power supply
Ground
Ready busy
Reset
No connection
I/O0
Memory array
Data latch
I/O buffer
and
input latch
Y gating
to
I/O7
RDY/
Busy
*
1