AT28C256-15JI

Memory IC Overview

The AT28C256-15JI is a 256Kbit (32K x 8) parallel EEPROM manufactured by Microchip Technology. It features a 150 ns access time and operates on a single 5V supply within a 4.5V to 5.5V range. The device utilizes PLCC-32 packaging for surface mount installation. Key electrical specifications include a maximum active current of 50 mA and a standby current under 200 µA. It supports page write operations with internal latches for up to 64 bytes, ensuring efficient data programming.

Memory IC Feature Summary

• Supports automatic page write operations with internal address and data latches for 64-byte blocks
• Includes hardware and software data protection mechanisms such as DATA polling for end-of-write detection
• Features low power CMOS technology with high endurance cycles and long-term data retention capabilities

Memory IC Applications

• Industrial control systems requiring non-volatile data storage
• Embedded applications needing configuration parameter retention
• Automotive electronics utilizing industrial temperature range components

Memory IC Procurement Notes

Verify the specific suffix 'JI' against official Microchip documentation to confirm package type and temperature grade. Ensure compliance with export regulations if shipping from restricted regions. Confirm RoHS status and moisture sensitivity level prior to assembly planning.

Memory IC Selection Notes

Select this component when a 150 ns access speed is required for 256Kbit parallel EEPROM applications. The PLCC-32 package suits surface mount designs. Consider the 5V supply requirement and industrial temperature range suitability for the target environment.

Memory IC Part Context

This part belongs to the AT28C256 series of electrically erasable programmable read-only memories. The series offers high-performance nonvolatile storage using advanced CMOS technology. It is designed for applications requiring fast read access and reliable data retention over extended periods.

Memory IC FAQ

What is the maximum page write size for the AT28C256-15JI?

The device supports a maximum page write operation of 64 bytes, facilitated by internal address and data latches.

How does the device indicate the completion of a write cycle?

It uses DATA polling for end-of-write detection, allowing the system to monitor the DQ7 pin to determine when the write cycle is complete.