FT24C512A-UDR-B

Overview

The FT24C512A-UDR-B is a 512K-bit (65,536 x 8) serial EEPROM manufactured by Fremont Micro Devices Ltd. It operates within a supply voltage range of 1.8V to 5.5V and supports clock frequencies up to 1 MHz at 2.5V–5.0V and 400 kHz at 1.8V. The device features a standard two-wire bi-directional serial interface with Schmitt trigger inputs for noise protection. It includes hardware write protection via the WP pin, self-timed write cycles of 5ms maximum, and partial page write capabilities. The component is housed in an 8-lead UDFN package and functions across an industrial temperature range of -40°C to 85°C.

Feature Summary

• Supports 128-byte page write mode with automatic erase before write operations.
• Includes a dedicated Write Protect (WP) pin for hardware-level data security.
• Features internally organized memory addressing requiring 16 bits for random word access.

Applications

• Industrial control systems requiring non-volatile parameter storage
• Consumer electronics utilizing low-power serial interfaces
• Medical devices needing high reliability and extended data retention

Procurement Notes

Verify that the ordering suffix 'UDR-B' corresponds to the specific UDFN package and tape-and-reel packaging configuration required for your assembly process. Confirm compatibility with the 1.8V to 5.5V operating voltage range and ensure the design accommodates the 8-lead UDFN footprint dimensions provided in the datasheet.

Selection Notes

Select this component when a 512K-bit capacity is necessary alongside a compact surface-mount UDFN form factor. It is suitable for designs requiring robust hardware write protection and operation across a wide voltage spectrum from 1.8V to 5.5V. Ensure the application environment remains within the specified -40°C to 85°C industrial temperature limits.

Part Context

This part belongs to the FT24CxxxA series of Two-Wire Serial EEPROMs from Fremont Micro Devices. The series offers densities ranging from 1kbit to 1Mbit and utilizes a standard I2C-compatible interface. The FT24C512A specifically provides 512Kbits of storage, distinguishing it from lower-density variants like the FT24C04A or FT24C08A while sharing similar operational characteristics and package options.

Replacement Considerations

FT24C512A-ESR-T

FAQ

How does the Write Protect (WP) pin function?

When the WP pin is connected to VCC or VIH, all programming functions are disabled, protecting the entire EEPROM array. Read operations remain unaffected regardless of the WP pin state.

What is the maximum write cycle time?

The self-timed write cycle has a maximum duration of 5 milliseconds. During this period, the device ignores further commands until the internal programming completes.