x28c64 Intersil Corporation, x28c64 Datasheet - Page 2

• Manufacturer Part Number: x28c64
• Description: 5 Volt, Byte Alterable E2prom
• Manufacturer: Intersil Corporation

X28C64
PIN DESCRIPTIONS
Addresses (A
The Address inputs select an 8-bit memory location
during a read or write operation.
Chip Enable (CE)
The Chip Enable input must be LOW to enable all read/
write operations. When CE is HIGH, power consumption
is reduced.
Output Enable (OE)
The Output Enable input controls the data output buffers
and is used to initiate read operations.
PIN NAMES
FUNCTIONAL DIAGRAM
A
I/O
WE
CE
OE
V
V
NC
Symbol
0
CC
SS
–A
0
–I/O
12
0
7
–A
12
)
ADDRESS
INPUTS
A 0 –A 12
Address Inputs
Data Input/Output
Write Enable
Chip Enable
Output Enable
+5V
Ground
No Connect
Description
V CC
V SS
WE
CE
OE
LATCHES AND
LATCHES AND
3853 PGM T01
X BUFFERS
Y BUFFERS
LOGIC AND
DECODER
DECODER
CONTROL
TIMING
2
Data In/Data Out (I/O
Data is written to or read from the X28C64 through the
I/O pins.
Write Enable (WE)
The Write Enable input controls the writing of data to the
X28C64.
PIN CONFIGURATION
DATA INPUTS/OUTPUTS
AND LATCHES
I/O BUFFERS
65,536-BIT
E 2 PROM
I/O 0 –I/O 7
ARRAY
12
11
9
7
5
4
I/O 1
I/O 0
A 1
A 3
A 5
A 6
3853 FHD F01
13
10
8
6
2
3
I/O 2
A 0
A 2
A 4
A 12
A 7
BOTTOM VIEW
0
–I/O
X28C64
15
14
28
PGA
1
I/O 3
V SS
V CC
NC
7
)
17
16
20
22
24
27
I/O 5
I/O 4
CE
OE
A 9
WE
18
19
21
23
25
26
I/O 6
I/O 7
A 10
A 11
A 8
NC
3853 FHD F04