Microchip Technology AT29C256-70JI/AT29C256-90JI Flash Memory

The AT29C256-70JI and AT29C256-90JI from Microchip Technology are high-performance, 256-kilobit parallel-interface flash memory ICs. These devices are designed for a wide variety of applications where reliable and efficient non-volatile memory storage is essential. With a storage capacity of 256 kilobits, they are ideal for use in embedded systems, microcontroller-based applications, and various electronic products requiring firmware or parameter storage.

Key Features

• Memory Size: 256K (32K x 8)
• Access Time: 70 ns (AT29C256-70JI) and 90 ns (AT29C256-90JI)
• Operating Voltage: 5V
• Package: 32-lead PLCC (Plastic Leaded Chip Carrier)
• Temperature Range: Industrial (-40°C to +85°C)
• Endurance: 10,000 write cycles
• Data Retention: 20 years at 25°C

These flash memory chips boast a fast access time, making them suitable for applications requiring quick read operations. They operate on a 5V power supply, which is a common voltage in digital systems, ensuring easy integration into existing designs. The industrial temperature range allows these devices to perform reliably in harsh environments, making them suitable for industrial applications.

The memory is organized as 32,768 words by 8 bits, allowing for efficient data management and storage. The 10,000 write cycles ensure a long operational lifespan, while the 20-year data retention offers the assurance that data will be preserved over an extended period without power.

The PLCC package is widely used and appreciated for its reliability and ease of mounting on printed circuit boards. The leaded design also facilitates easy inspection and rework if necessary, contributing to the overall robustness of the final product.

Overall, the AT29C256-70JI and AT29C256-90JI flash memory chips from Microchip Technology provide a reliable and durable solution for storing critical data in a variety of electronic applications. Their combination of speed, capacity, and stability makes them an excellent choice for designers looking to implement non-volatile memory storage in their systems.