AT28C64-15JI

Memory IC Overview

The AT28C64-15JI is a 64K (8K x 8) parallel EEPROM manufactured by Microchip Technology. It features a 150 ns access time and operates on a single 5V ± 10% supply. The device supports industrial temperature ranges from -40°C to +85°C and utilizes a 32-lead PLCC package. Key electrical parameters include a maximum active current of 45 mA and a standby current of 100 µA.

Memory IC Feature Summary

• Self-timed byte write cycle with internal address and data latches
• READY/BUSY open drain output for write cycle detection
• DATA polling capability for end-of-write status indication
• Hardware and software data protection mechanisms

Memory IC Applications

• Industrial control systems requiring nonvolatile storage
• Microprocessor-based memory expansion
• Data logging applications
• Configuration storage in embedded devices

Memory IC Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type, speed grade, and temperature range. Ensure compatibility with existing system voltage levels and interface requirements before procurement.

Memory IC Selection Notes

Select this component when a 64K capacity with 150 ns access speed is required. The PLCC package is suitable for surface mount assembly. Verify that the 45 mA active current draw fits within the system power budget.

Memory IC Part Context

This part belongs to the AT28C64 family of high-performance parallel EEPROMs. It is designed for direct microprocessor control and offers low power consumption. The device provides high reliability with extended endurance options available in related variants.

Memory IC Replacement Considerations

Compatible substitutes include other AT28C64 variants with matching speed grades and packages, such as AT28C64-15JC or AT28C64-15TI, provided pinout and electrical specifications align.