M2764A
NMOS 64K (8K x 8) UV EPROM
FAST ACCESS TIME: 180ns
EXTENDED TEMPERATURE RANGE
SINGLE 5V SUPPLY VOLTAGE
LOW STANDBY CURRENT: 35mA max
TTL COMPATIBLE DURING READ and PROGRAM
FAST PROGRAMMING ALGORITHM
ELECTRONIC SIGNATURE
PROGRAMMING VOLTAGE: 12V
28
1
FDIP28W (F)
DESCRIPTION
The M2764A is a 65,536 bit UV erasable and
electrically programmable memory EPROM. It is
organized as 8,192 words by 8 bits.
The M27C64A is housed in a 28 pin Window Ce-
ramic Frit-Seal Dual-in-Line package. The trans-
parent lid allows the user to expose the chip to
ultraviolet light to erase the bit pattern. A new
pattern can then be written to the device by follow-
ing the programming procedure.
Figure 1. Logic Diagram
VCC
VPP
13
A0-A12
8
Q0-Q7
Table 1. Signal Names
A0 - A12
Q0 - Q7
E
G
P
V
PP
V
CC
V
SS
Address Inputs
Data Outputs
Chip Enable
Output Enable
Program
Program Supply
Supply Voltage
Ground
P
E
G
M2764A
VSS
AI00776B
March 1995
1/10
STMICROELECTRONICS [ STMICROELECTRONICS ]
