M27128A-20F6 STMICROELECTRONICS [STMicroelectronics], M27128A-20F6 Datasheet

M27128A-20F6

Manufacturer Part Number

M27128A-20F6

Description

NMOS 128K 16K x 8 UV EPROM

Manufacturer

STMICROELECTRONICS [STMicroelectronics]

Datasheet

1.M27128A-20F6.pdf (10 pages)

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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.

Table 1. Signal Names

March 1995

A0 - A13

Q0 - Q7

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

Address Inputs

Data Outputs

Chip Enable

Output Enable

Program

Program Supply

Supply Voltage

Ground

NMOS 128K (16K x 8) UV EPROM

Figure 1. Logic Diagram

A0-A13

FDIP28W (F)

V CC

V SS

M27128A

V PP

M27128A

Q0-Q7

AI00769B

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