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AM27C040-90PC from AMD

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AM27C040-90PC

Manufacturer: AMD

4 Megabit (512 K x 8-Bit) CMOS EPROM
Partnumber Manufacturer Quantity Availability
AM27C040-90PC,AM27C04090PC AMD 2475 In Stock

Description and Introduction

4 Megabit (512 K x 8-Bit) CMOS EPROM The AM27C040-90PC is a 4 Megabit (512K x 8) UV erasable and electrically programmable read-only memory (EPROM) manufactured by AMD. Key specifications include:

- **Organization**: 512K x 8
- **Access Time**: 90 ns
- **Operating Voltage**: 5V ± 10%
- **Programming Voltage**: 12.5V
- **Package**: 32-pin Plastic DIP (Dual In-line Package)
- **Technology**: CMOS
- **Operating Temperature Range**: 0°C to +70°C
- **Programming Method**: Fast programming algorithm
- **Data Retention**: 10 years minimum
- **UV Erase Time**: 20 minutes (typical) under UV light at 2537 Å
- **Power Dissipation**: Active current: 30 mA (typical), Standby current: 100 µA (typical)

This EPROM is designed for applications requiring non-volatile memory with high reliability and performance.

Application Scenarios & Design Considerations

4 Megabit (512 K x 8-Bit) CMOS EPROM

Alternative Part Number

  • M27C4001-90F1 --: Pin-compatible 4 Mbit UV EPROM with similar 90 ns access time and DIP-32 package, widely available as a direct replacement.
  • M27C4001-10F1 --: Same 4 Mbit EPROM family and pinout; slightly slower 100 ns access time but usually acceptable in most legacy designs.
  • NMC27C040Q90 --: Equivalent 4 Mbit CMOS EPROM with 90 ns speed and compatible pinout, usable as an alternative when ST parts are unavailable.

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