FT24C128A-UMR-B

Overview

The FT24C128A-UMR-B is a serial EEPROM memory integrated circuit manufactured by Fremont Micro Devices Ltd. It provides a storage capacity of 128 kilobits, organized as 16k x 8 bits. The device utilizes an I²C interface with a maximum clock frequency of 1 MHz. It operates within a supply voltage range of 1.8V to 5.5V and supports a write cycle time of 5ms for both word and page operations. The access time is specified at 550 ns. The component is housed in an 8-TSSOP package with a width of 4.40 mm and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Non-volatile data retention capability preserving stored information without power
• I²C serial interface support for efficient two-wire communication
• Wide operating voltage compatibility ranging from 1.8V to 5.5V
• Industrial grade thermal stability for extended temperature environments

Applications

• Data logging systems requiring non-volatile parameter storage
• Consumer electronics configuration memory
• Industrial control system calibration data retention
• Communication equipment settings preservation

Procurement Notes

Verify the specific suffix UMR-B against official Fremont Micro Devices documentation to confirm the exact package type and tape-and-reel specifications. Ensure the ordering part number matches the required 8-TSSOP variant. Confirm availability status directly with authorized distributors as stock levels fluctuate. Validate RoHS compliance and moisture sensitivity level requirements for your assembly process before finalizing procurement orders.

Selection Notes

Select this component when a 128Kb I²C EEPROM is required in an 8-TSSOP surface-mount package. It is suitable for designs needing 1.8V to 5.5V operation and industrial temperature ranges. Compare pinout compatibility with existing PCB layouts. Consider the 1 MHz clock speed for bus timing requirements. Verify that the 5ms write cycle time aligns with application performance needs.

Part Context

This part belongs to the FT24C128A series of serial EEPROMs from Fremont Micro Devices. The series offers various package options including TSSOP, MSOP, and DFN formats. These devices are designed for general-purpose non-volatile memory applications. The family shares common electrical characteristics but differs in physical footprint and packaging style to suit diverse board space constraints.

Replacement Considerations

Consult official cross-reference lists for verified substitutes. Ensure any replacement maintains identical I²C addressing, voltage range, and package dimensions. Verify functional equivalence in terms of write cycle times and access speeds before implementation.