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M27128A-3F1 View Datasheet(PDF) - STMicroelectronics

Part NameDescriptionManufacturer
M27128A-3F1 NMOS 128K (16K x 8) UV EPROM ST-Microelectronics
STMicroelectronics ST-Microelectronics
M27128A-3F1 Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
M27128A
NMOS 128K (16K x 8) UV EPROM
FAST ACCESS TIME: 200ns
EXTENDED TEMPERATURE RANGE
SINGLE 5 V SUPPLY VOLTAGE
LOW STANDBY CURRENT: 40mA max
TTL COMPATIBLE DURING READ and
PROGRAM
FAST PROGRAMMING ALGORITHM
ELECTRONIC SIGNATURE
PROGRAMMING VOLTAGE: 12V
28
1
FDIP28W (F)
DESCRIPTION
The M27128A is a 131,072 bit UV erasable and
electrically programmable memory EPROM. It is
organized as 16,384 words by 8 bits.
The M27128A 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
14
A0-A13
8
Q0-Q7
Table 1. Signal Names
A0 - A13
Q0 - Q7
E
G
P
VPP
VCC
VSS
Address Inputs
Data Outputs
Chip Enable
Output Enable
Program
Program Supply
Supply Voltage
Ground
P
M27128A
E
G
VSS
AI00769B
March 1995
1/10
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