HN27C4000G Renesas Electronics Corporation., HN27C4000G Datasheet - Page 3

• Manufacturer Part Number: HN27C4000G
• Description: 524288-word 8-bit/262144-word X 16-bit Cmos Uv Erasable And Programmable Rom - Hitachi Semiconductor
• Manufacturer: Renesas Electronics Corporation.

Block Diagram
Mode Selection
Mode
Read (X16 bit)
Read (X8 bit)
Output disable (X16 bit)
Output disable (X8 bit)
V
V
V
CE
OE
PP
CC
SS
I/O0
I/O15
Pin
DG-40A
A7
A17
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
H
CE
(10)
V
V
V
V
IL
IL
IL
IL
OE
(12)
V
V
V
V
IL
IL
IH
IH
A9
(39)
X
X
X
X
Input
Data
Control
X-
Decoder
BYTE/V
(31)
V
V
V
V
IH
IL
IH
IL
PP
V
(21)
V
V
V
V
CC
CC
CC
CC
CC
A0
. . . . . . . . . . . . .
I/O0 – I/O7, I/O8 – I/O14, I/O15/A-1
(13 – 20,
Dout
Dout
High-Z
High-Z
Memory Matrix
2,048 x 2,048
H
Y-Gating
Y-Decoder
HN27C4000G Series
: High threshold inverter
22 – 28,
Dout
High-Z
High-Z
High-Z
A6
29)
Dout
V
High-Z
V
IH
IH
/V
/V
IL
IL
3