MICROCHIP AT27C040-70PU OTP EPROM 4Mbit DIP-32

The MICROCHIP AT27C040-70PU is a high-performance, low-power, 4 Mbit One-Time Programmable Read-Only Memory (OTP EPROM), organised as 512K by 8 bits. It operates from a single 5V power supply (4.5V to 5.5V) in normal read mode, simplifying system design and power management.

With a maximum access time of 70ns, this EPROM eliminates the need for wait states in high-speed microprocessor systems, ensuring fast and efficient data retrieval. The advanced CMOS technology delivers low active power consumption of typically 8mA and a standby current of less than 10μA, making it ideal for power-sensitive applications.

The device supports a rapid programming algorithm, reducing programming time to typically just 100μs per byte, while maintaining reliable programming. It also includes an integrated product identification code, enabling industry-standard programming equipment to automatically select the correct programming algorithms and voltages.

This EPROM is designed for industrial temperature ranges (-40°C to +85°C) and is supplied in a DIP-32 package for through-hole mounting. Its robust CMOS technology ensures high reliability, making it suitable for demanding commercial and industrial environments.

Specifications

• Memory Density: 4 Mbit
• Memory Configuration: 512K x 8 bit
• No. of Pins: 32
• IC Case / Package: DIP
• IC Mounting: Through Hole
• Supply Voltage Min: 4.5V
• Supply Voltage Max: 5.5V
• Operating Temperature Min: -40°C
• Operating Temperature Max: +85°C
• Access Time: 70ns
• Active Current: Typically 8mA
• Standby Current: Less than 10μA
• Programming Time: Typically 100μs/byte

Applications

• Computer systems
• Computer peripherals
• High-performance microprocessor systems