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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 Ceramic Frit-Seal Dual-in-Line package. The transparent 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 following the programming procedure.
M27128A Maximum Ratings
Symbol
Parameter
Value
Unit
TA
Ambient Operating Temperature grade 1 grade 6
0 to 70 40 to 85
°C
TBIAS
Temperature Under Biasgrade 1 grade 6
10 to 80 50 to 95
°C
TSTG
Storage Temperature
65 to 125
°C
VIO
Input or Output Voltages
0.6 to 6.25
V
VCC
Supply Voltage
0.6 to 6.25
V
VA9
A9 Voltage
0.6 to 13.5
V
VPP
Program Supply
0.6 to 14
V
M27128A Features
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