HN58C256AP85E Renesas Electronics America, HN58C256AP85E Datasheet - Page 4

• Manufacturer Part Number: HN58C256AP85E
• Description: IC, EEPROM, 256KBIT, 1MHZ, DIP-28
• Manufacturer: Renesas Electronics America

Specifications of HN58C256AP85E

• Memory Size: 256Kbit
• Memory Configuration: 32K X 8
• Ic Interface Type: Parallel
• Access Time: 85ns
• Supply Voltage Range: 4.5V To 5.5V
• Memory Case Style: DIP
• No. Of Pins: 28
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

HN58C256A Series, HN58C257A 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 HN58C257A series.
Rev.6.00, Oct. 26.2006, page 4 of 24
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 HN58C257A 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