FT93C66A-UDR-B

Overview

The FT93C46A-UDR-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 clock frequency of 1 MHz. It operates within a supply voltage range of 4.5V to 5.5V and supports through-hole mounting in an 8-DIP package (0.300 inch width). The component functions across an ambient temperature range of -40°C to +85°C, with a write cycle time of 10ms per word or page.

Feature Summary

• Supports dual memory organization formats for byte (x8) and word (x16) access configurations.
• Provides non-volatile data retention suitable for persistent storage applications.
• Compatible with standard 3-wire serial communication protocols.

Applications

• Embedded systems requiring small-scale parameter storage
• Industrial control devices needing configuration data retention
• Consumer electronics utilizing low-pin-count memory interfaces

Procurement Notes

Verify the specific part number suffix against official datasheets to confirm pinout compatibility and electrical specifications. Ensure the selected variant matches the required operating voltage and temperature range for the target application environment. Cross-reference manufacturer documentation to validate RoHS compliance status and packaging type before finalizing procurement orders.

Selection Notes

Select this component when a 1Kb EEPROM with a 3-wire interface is required in a through-hole DIP package. Confirm that the system power supply remains within the 4.5V to 5.5V range. Consider the 1 MHz clock speed and 10ms write cycle time relative to system performance requirements. Verify that the 8-DIP footprint fits the printed circuit board layout constraints.

Part Context

This device belongs to the 93C46A series of serial EEPROMs produced by Fremont Micro Devices Ltd. It serves as a drop-in replacement for industry-standard 93C46 components. The series offers various package options including surface mount and through-hole configurations to accommodate different design needs while maintaining functional compatibility.

Replacement Considerations

FT93C66A-UDR-B is listed as a similar substitute by the manufacturer.