X28C512JI-15

Memory IC Overview

The X28C512JI-15 is a 64K x 8 (512K-bit) electrically erasable programmable read-only memory (EEPROM) manufactured by Renesas Electronics Corporation. It utilizes high-performance floating gate CMOS technology and operates at a supply voltage of 5V. The device supports byte-alterable operations, allowing for individual byte programming and erasing without affecting other memory locations. It features a standard SPI serial interface for data input and output, ensuring compatibility with various microcontroller systems.

Memory IC Feature Summary

• Byte-alterable architecture enabling independent modification of individual memory bytes
• High-reliability floating gate CMOS fabrication process
• Serial peripheral interface (SPI) communication protocol support
• Standard 5-volt single-supply operation

Memory IC Applications

• Industrial control system configuration storage
• Consumer electronics parameter retention
• Automotive embedded system data logging
• General-purpose non-volatile memory backup

Memory IC Procurement Notes

Verify the specific suffix 'J' and speed grade 'I-15' against the manufacturer's current active product list to confirm availability status. Ensure the package type matches the design requirements, as variations exist within the X28C series. Cross-reference the datasheet revision date to confirm compliance with current environmental regulations and pinout definitions before finalizing procurement orders.

Memory IC Selection Notes

Select this component when a small-capacity, byte-addressable non-volatile memory solution is required for 5V logic systems. The SPI interface reduces pin count compared to parallel EEPROMs, making it suitable for space-constrained designs. Consider the operating temperature range and package options to ensure compatibility with the target application's environmental conditions and board layout constraints.

Memory IC Part Context

The X28C512 belongs to the broader X28C family of EEPROMs produced by Renesas (formerly Intersil). This family is designed for applications requiring reliable data storage in industrial and consumer environments. The X28C512 specifically offers 512K-bit capacity, serving as a compact alternative to larger memory devices while maintaining fast access times and low power consumption characteristics typical of modern CMOS EEPROM technologies.

Memory IC Replacement Considerations

Check for direct pin-compatible replacements such as the X28C513 if higher density is needed, or verify cross-brand equivalents from manufacturers like Microchip or STMicroelectronics that offer identical SPI interfaces and 5V operation. Ensure electrical specifications match exactly to avoid redesign efforts.