28F020-150JC

The AM28F020-150JC is a 256K x 8-bit CMOS flash memory chip manufactured by Advanced Micro Devices. This device offers a 150ns access time, making it suitable for applications requiring moderate speed and reliable non-volatile storage. It operates from a single 5V power supply and is housed in a 32-pin PLCC package, commonly used in industrial and embedded systems.

This flash memory chip utilizes floating gate transistor technology for persistent data storage. It features a parallel interface with address and data buses for host system communication. The memory is internally organized into sectors that can be individually erased and programmed, allowing for flexible memory management and firmware updates. The 150ns access time indicates the maximum delay between a valid address input and stable data output.

Key features include a typical endurance of 100,000 write/erase cycles per sector and data retention of up to 10 years. It supports a command-driven interface for programming and erase operations, along with automatic program and erase algorithms. The industrial temperature range of -40°C to +85°C makes it suitable for harsh environments.

The AM28F020-150JC is primarily used in embedded systems for non-volatile firmware storage, including industrial control systems, medical devices, telecommunications equipment, and automotive electronics. It can serve as a direct replacement for older EPROM devices, offering electrical erasure capabilities.