FT93C56A-UDR-B

Overview

The FT93C56A-UDR-B is a serial EEPROM manufactured by Fremont Micro Devices. It features a storage capacity of 4Kb, organized as 512 x 8 or 256 x 16 bits. The device utilizes an SPI interface with a maximum clock frequency of 2 MHz. It operates within a supply voltage range of 1.8 V to 5.5 V and supports through-hole mounting in an 8-DIP package. The operational temperature range extends from -40°C to +85°C.

Feature Summary

• Supports dual memory organization modes for 8-bit and 16-bit word access
• Integrates self-timed write cycle capability for automatic erase-before-write operations
• Provides hardware data protection mechanisms against accidental writes

Applications

• Industrial control systems requiring non-volatile parameter storage
• Embedded devices needing configuration data retention
• Consumer electronics utilizing low-voltage power supplies

Procurement Notes

Verify the specific suffix 'UDR' against official Fremont Micro Devices documentation to confirm pinout compatibility and package dimensions. Ensure the selected variant matches the required operating temperature range and voltage specifications for the target application environment before finalizing procurement.

Selection Notes

Select this component when a robust SPI-compatible EEPROM is needed for applications requiring wide voltage operation down to 1.8 V. The 8-DIP package facilitates easy prototyping and through-hole assembly. Consider the 4Kb capacity limits and 2 MHz speed requirements relative to system performance needs.

Part Context

This part belongs to the FT93CxxxA series of serial EEPROMs designed for Microwire/SPI compatibility. It serves as a drop-in replacement for legacy 93C56 devices while offering enhanced voltage flexibility and modern packaging options. The series is engineered for high reliability in industrial and commercial environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.