AT27C64 64K (8K x 8) High-Speed CMOS OTP EPROM (DIP-28)

The AT27C64 is a low-power, high-performance 65,536-bit One-Time Programmable Read-Only Memory (OTP EPROM). It is organized as 8K by 8 bits, making it a standard choice for storing firmware in 8-bit microprocessor and microcontroller systems. Because it is manufactured using Atmel's advanced non-volatile CMOS technology, it provides significantly higher speeds and lower power dissipation than traditional bipolar or NMOS components. The device is housed in a cost-effective 28-pin plastic DIP package without a window, intended for applications where the code is fixed and does not require erasure. It features a standby mode that automatically reduces power consumption when the chip-enable input is high, extending battery life in portable applications. This memory is commonly used in industrial automation, telecommunications, and consumer electronics where high reliability and fast data access are required.

Key Features:

One-Time Programmable (OTP) design eliminates the need for expensive windowed packages.

Fast access times available down to 45 nanoseconds for high-performance systems.

Low power consumption with a typical active current of 20 milliamps and 100 microamps standby.

CMOS and TTL compatible inputs and outputs for flexible circuit integration.

Integrated Rapid Programming Algorithm allows for fast and reliable data encoding.