FT93C46A-ITR-T

Overview

The FT93C46A-ITR-T is a 1Kb (128 x 8 or 64 x 16) serial EEPROM manufactured by Fremont Micro Devices Ltd. It utilizes a 3-wire Microwire-compatible interface with a maximum clock frequency of 2 MHz. The device operates within a supply voltage range of 1.8V to 5.5V and supports surface-mount installation in an 8-TSSOP package. It features a write cycle time of 10ms per word or page and functions across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Supports dual memory organization formats for byte (x8) and word (x16) access
• Compatible with standard 3-wire Microwire bus protocol
• Provides non-volatile data retention without requiring battery backup

Applications

• Industrial control systems requiring parameter storage
• Consumer electronics configuration memory
• Automotive subsystems operating within specified temperature ranges

Procurement Notes

Verify component authenticity through authorized distributors, as the part status may indicate discontinuation. Confirm that the 8-TSSOP tape-and-reel packaging matches production requirements. Ensure the selected variant meets specific voltage and temperature constraints for the target application environment before finalizing orders.

Selection Notes

Select this component when a 1Kb capacity with 3-wire interface compatibility is required. Consider the 1.8V minimum supply voltage for low-power designs. Verify that the 8-TSSOP package dimensions fit the PCB layout. Compare against alternative manufacturers if automotive qualification or extended temperature ranges beyond 85°C are necessary.

Part Context

This part belongs to the 93C46A series of serial EEPROMs. It serves as a direct functional replacement for legacy devices using the same pinout and command set. The manufacturer offers related variants with different capacities and packaging options within the same family architecture.

Replacement Considerations

Direct substitutes include FT93C46A-UTR-B and AT93C46D-TH-B from other manufacturers. Verify pin compatibility and electrical specifications before swapping components in existing designs.