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M27128A-25F1 Datasheet(PDF) 1 Page - STMicroelectronics |
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M27128A-25F1 Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 10 page AI00769B 14 A0-A13 P Q0-Q7 VPP VCC M27128A G E VSS 8 Figure 1. Logic Diagram 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 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. A0 - A13 Address Inputs Q0 - Q7 Data Outputs E Chip Enable G Output Enable P Program VPP Program Supply VCC Supply Voltage VSS Ground Table 1. Signal Names 1 28 FDIP28W (F) March 1995 1/10 |
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