Microchip Technology AT29C257-70JI Flash Memory

The AT29C257-70JI from Microchip Technology is a high-performance, 256K (32K x 8) 5-volt-only Flash memory component that offers a fast access time of 70 nanoseconds, making it suitable for high-speed microprocessor systems. This integrated circuit is designed to be a versatile non-volatile memory solution with a wide range of applications, including firmware storage, code shadowing, and data storage in embedded systems.

This particular model is packaged in a robust 32-lead PLCC (Plastic Leaded Chip Carrier) that provides a compact footprint and reliable connectivity for PCB integration. The AT29C257-70JI is designed for easy interface with most 8-bit and 16-bit microprocessors and offers a simple, yet flexible, sector-based architecture.

Key features of the AT29C257-70JI include:

• High-Density Storage: With 256K of storage, this Flash memory can hold substantial code or data, suitable for a variety of applications.
• Fast Read Access Time: The 70ns access time allows for quick data retrieval, ensuring that the system's performance remains high.
• Low Power Consumption: Designed to be power-efficient, this memory component helps in reducing the overall power consumption of the system it's integrated into.
• Write and Erase Cycles: The AT29C257-70JI supports 10,000 write/erase cycles, providing reliable performance and longevity for applications that require frequent data updates.
• Extended Temperature Range: This device can operate in a wide temperature range, making it suitable for industrial applications with harsh environmental conditions.

The programming and erase times of this Flash memory are designed to be competitive, with a typical chip erase time of 10 milliseconds, allowing for efficient updates and changes to the stored data. Moreover, the AT29C257-70JI supports JEDEC standard algorithms for Flash memory programming, which can be easily implemented in the microprocessor systems.

Overall, the AT29C257-70JI by Microchip Technology stands out as a reliable and efficient solution for designers and engineers looking for a Flash memory that combines high-density storage with fast access times and low power consumption.