FT24C512A-USR-B

Overview

The FT24C512A-USR-B is a 512K-bit (65,536 x 8) serial EEPROM manufactured by Fremont Micro Devices Ltd. It operates on a standard two-wire I2C interface with a maximum clock frequency of 1 MHz at 2.5V to 5.5V and 400 kHz at 1.8V. The device supports a supply voltage range of 1.8V to 5.5V and features a self-timed write cycle of up to 5ms. It includes hardware data protection via a Write Protect pin and offers high reliability with approximately 1,000,000 write cycles endurance and 100 years of data retention.

Feature Summary

• Supports 128-byte page write mode with partial page write capability for efficient data management.
• Includes a dedicated Write Protect pin that disables all programming functions when connected to VCC or VIH.
• Features Schmitt trigger inputs with noise filtering to ensure signal integrity in noisy environments.
• Automatically performs erase-before-write operations during internal programming cycles.

Applications

• Industrial control systems requiring non-volatile data storage
• Consumer electronics utilizing low-power memory solutions
• Embedded devices needing hardware-level data protection

Procurement Notes

Verify the specific package type associated with the suffix 'USR-B' against official ordering tables, as datasheet listings may vary. Confirm RoHS compliance status and check for any discontinued part notices from Fremont Micro Devices Ltd before finalizing procurement plans.

Selection Notes

Select this component for applications requiring wide voltage operation between 1.8V and 5.5V. Ensure the design accommodates the 128-byte page size constraints and utilizes the Write Protect pin if hardware security is required. Verify compatibility with the host controller's I2C timing specifications.

Part Context

This component belongs to the FT24C512A series of serial EEPROMs from Fremont Micro Devices Ltd. The series provides 512K-bit capacity using advanced CMOS technology for low power consumption. It is designed for industrial temperature ranges and offers multiple packaging options including SOP, TSSOP, and UDFN.

Replacement Considerations

FT24C512A-ESR-T

FAQ

How does the Write Protect pin function?

When the WP pin is connected to VIL or left unconnected, programming is allowed. When connected to VIH or VCC, all programming functions are disabled, though read operations remain unaffected.

What is the maximum clock frequency?

The device supports a maximum clock frequency of 1 MHz when operating at 2.5V to 5.5V, and 400 kHz when operating at 1.8V.