27C020-100 2048K 100ns CMOS EPROM – Datasheet

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The M27C020 is a high-speed 2 Mbit EPROM offered in the two ranges UV (ultra violet erase) and OTP (one-time programmable). It is ideally suited for microprocessor systems requiring large programs and is organized as 262,144 by 8 bits. The FDIP32W (window ceramic frit-seal package) and LCCC32W (leadless chip carrier package) have transparent lids which allow 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. For applications where the content is programmed only one time and erasure is not required, the M27C020 is offered in PDIP32, PLCC32, and TSOP32 (8 x 20 mm) packages.

27C020 Pinout

27C020 Pin Configuration

Pin NumberPin NoDescription
1VPPProgramming Supply
2A16 Address Input
3A15 Address Input
4A12 Address Input
5A7 Address Input
6A6Address Input
7A5 Address Input
8A4 Address Input
9A3 Address Input
10A2 Address Input
11A1 Address Input
12A0 Address Input
13DQ0 Data Output
14DQ1 Data Output
15DQ2 Data Output
16VSS Ground
17DQ3 Data Output
18DQ4 Data Output
19DQ5 Data Output
20DQ6 Data Output
21DQ7 Data Output
22CE’Chip Enable
23A10 Address Input
24OE’Output Enable/Program Supply
25A11 Address Input
26A9Address Input
27A8 Address Input
28A13 Address Input
29A14 Address Input
30A17 Address Input
31PGMProgramming Pin
32VCCPositive Power Supply

27C020 Key Features

  • 5V ± 10% Supply Voltage in reading Operation
  • Access Time: 55ns
  • Low Power Consumption:
    • Active Current 30mA at 5MHz
    • Standby Current 100µA
  • Programming Voltage: 12.75V ± 0.25V
  • Programming Time: 100µs/word
  • Electronic Signature
    • Manufacturer Code: 20h
    • Device Code: 61h

You can download this datasheet for 27C020/27C2001 2048K 100ns CMOS EPROM – Datasheet from the link given below: