FT24C64A-USG-B

Overview

The FT24C64A-USG-B is a 64 Kbit (8K x 8) serial Electrically Erasable and Programmable Read-Only Memory (EEPROM) manufactured by Fremont Micro Devices. It utilizes a standard two-wire bi-directional serial interface for data access. The device supports low voltage operations ranging from 1.8V to 5.5V, with maximum standby current typically below 1µA. It features a 16-byte page write mode and automatic erase-before-write capability. The component operates within an industrial temperature range of -40°C to +85°C and offers high reliability with typical endurance of 1,000,000 cycles and 100 years data retention.

Feature Summary

• Standard two-wire serial interface compatible with I2C bus modes
• Hardware write protect pin for data security
• Automatic erase before write operation ensures data integrity
• Schmitt trigger inputs provide noise protection

Applications

• Industrial control systems requiring non-volatile data storage
• Consumer electronics needing configuration parameter retention
• Automotive modules operating in harsh environments

Procurement Notes

Verify the specific suffix 'USG-B' against official Fremont Micro Devices documentation to confirm package type and tape-and-reel specifications. Ensure the ordering part number matches the required voltage range and temperature grade. Cross-reference with authorized distributors to confirm availability and authenticity. Request datasheet revisions to verify any recent design changes or compliance updates.

Selection Notes

Select this component when a compact 64 Kbit EEPROM solution is required for space-constrained designs. It is suitable for applications demanding low power consumption and wide voltage compatibility. Consider the MSOP package for surface mount assembly needs. Evaluate the 1 MHz clock speed at 5V for high-speed data transfer requirements compared to lower voltage constraints.

Part Context

This part belongs to the FT24CxxA series of serial EEPROMs, which includes variants such as FT24C04A, FT24C08A, and FT24C16A. These devices share similar architectural features and interface protocols but differ in memory density. The FT24C64A provides higher storage capacity while maintaining the same low-power characteristics and package options found in the broader family.

Replacement Considerations

Compatible substitutes include other 64 Kbit I2C EEPROMs from manufacturers like STMicroelectronics (e.g., M24C64 series) or Microchip Technology. Verify pinout compatibility and voltage ranges before substitution. Ensure the replacement device meets the same industrial temperature and endurance specifications.