The AM28F020-150EC is a 2-Megabit (256K x 8) CMOS Flash memory device manufactured by Advanced Micro Devices (AMD). The '150' indicates a 150ns access time, and the 'EC' often designates a specific package or temperature range variant.

Applications

• Embedded systems firmware storage
• BIOS storage in older computer systems
• Programmable logic controllers (PLCs)
• Data logging applications
• Networking equipment (routers, switches) for configuration storage

Features

• 2-Megabit (256K x 8) organization
• Access time: 150 ns
• Single 5V power supply
• Sector Erase capability
• Program and Erase operations performed electrically
• TTL Compatible Inputs/Outputs
• Low Power Consumption

Benefits

• Non-volatile storage of program code and data
• Fast access time for quick data retrieval
• In-system programmability allows for firmware updates without removing the device
• Sector erase capability allows selective data updates
• Low power consumption for battery-powered applications

Additional Details

The AM28F020-150EC provides a reliable, non-volatile storage solution for embedded systems. The sector erase capability allows specific blocks of memory to be erased and reprogrammed without affecting other data in the device. The in-system programmability feature enables firmware updates to be performed without physically removing the device from the system, simplifying maintenance and upgrades. The device operates from a single 5V power supply, reducing system complexity and cost.

Flash memory such as the AM28F020 provides significant advantages over older EPROM technologies due to its electrical erasability and in-system programmability. It is commonly found in embedded systems where frequent updates or data logging are required. The device’s 150ns access time is sufficient for many embedded control and data acquisition applications.

The device is typically packaged in a PDIP (Plastic Dual In-line Package), PLCC (Plastic Leaded Chip Carrier) or TSOP (Thin Small Outline Package). Ensure proper handling to avoid electrostatic discharge (ESD) damage during programming and operation.