27128 Datasheet PDF - STMicroelectronics

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 follow ing the programming procedure.

1. FAST ACCESS TIME: 200ns
2. EXTENDED TEMPERATURE RANGE
3. SINGLE 5 V SUPPLY VOLTAGE
4. LOW STANDBY CURRENT: 40mA max
5. TTL COMPATIBLE DURING READ and PROGRAM
6. FAST PROGRAMMING ALGORITHM
7. ELECTRONIC SIGNATURE
8. PROGRAMMING VOLTAGE: 12V