FT25C64A-USR-T

Overview

The FT25C64A-USR-T is a 64Kbit (8K x 8) serial EEPROM memory IC manufactured by Fremont Micro Devices Ltd. It utilizes an SPI interface with a maximum clock frequency of 20 MHz and features a write cycle time of 10 ms. The device operates within a supply voltage range of 1.8V to 5.5V and supports access times of 70 ns. It is housed in an 8-SOP package and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Supports high-speed SPI communication for efficient data transfer
• Provides non-volatile storage with byte-level write capabilities
• Operates with wide voltage input for flexible system integration

Applications

• Data logging systems requiring persistent parameter storage
• Consumer electronics configuration memory
• Industrial control unit calibration data retention

Procurement Notes

Verify the specific suffix 'USR' confirms the SOP-8 package and standard operating conditions. Confirm the manufacturer is Fremont Micro Devices Ltd. Ensure the datasheet specifies the 20 MHz SPI speed requirement for your design. Check RoHS compliance status if required by your assembly process.

Selection Notes

Select this component when SPI interface compatibility is required over I2C alternatives. The 20 MHz speed offers faster throughput compared to standard 1 MHz EEPROMs. Ensure the PCB layout accommodates the SOP-8 footprint. Verify that the 1.8V minimum voltage meets the lowest system rail requirements.

Part Context

This part belongs to the FT25C series of serial EEPROMs from Fremont Micro Devices. It serves as a high-speed alternative to lower-frequency variants, designed for applications demanding rapid read/write operations. The series typically shares pinouts within the same package type for capacity scaling.

Replacement Considerations

Check for direct pin-compatible SPI EEPROMs with similar voltage ranges. Verify that substitute parts support the 20 MHz clock speed and 64Kbit capacity. Ensure the replacement package matches the SOP-8 form factor.