FT93C46A-IDR-B

Overview

The FT93C46A-IDR-B is a non-volatile EEPROM memory IC manufactured by Fremont Micro Devices Ltd. It features a 1Kb storage capacity organized as 128 x 8 or 64 x 16 bits. The device utilizes a 3-wire serial interface with a maximum clock frequency of 2 MHz. It operates within a supply voltage range of 1.8V to 5.5V and supports an industrial temperature range of -40°C to 85°C. The component is housed in an 8-DIP package (0.300 inch width) for through-hole mounting.

Feature Summary

• Supports 3-wire serial communication interface for data access
• Provides non-volatile data retention without power
• Compatible with wide supply voltage ranges from 1.8V to 5.5V

Applications

• General-purpose data storage in embedded systems
• Configuration parameter storage in industrial controllers
• Calibration data retention in sensor modules

Procurement Notes

Verify the specific suffix 'IDR-B' to confirm the 8-DIP through-hole package and 2 MHz speed variant. Confirm RoHS3 compliance status for environmental regulations. Check manufacturer documentation for any product change notices regarding the 93C46A series conversion history. Ensure the ordering part number matches the required pin configuration and operating temperature range specifications.

Selection Notes

Select this component when a through-hole DIP package is required for prototyping or legacy board designs. Choose this model over surface mount variants if mechanical stress resistance during assembly is a priority. Verify that the 3-wire interface compatibility exists with the host microcontroller's available pins. Consider the 1.8V minimum supply voltage requirement for low-power system integration.

Part Context

This part belongs to the 93C46A series of serial EEPROMs produced by Fremont Micro Devices Ltd. It serves as a drop-in replacement for similar devices from other manufacturers using the standard 93C46 architecture. The series is designed for applications requiring small, reliable non-volatile memory storage with simple serial control logic.

Replacement Considerations

FT93C46A-UDR-B is listed as a direct substitute. AT93C46D-TH-B and AT93C46D-TH-T from Microchip Technology are also confirmed direct replacements.