FT25L04T-RB

Overview

The FT25L04T-RB is a 4M-bit (512K x 8) serial flash memory manufactured by Fremont Micro Devices Ltd. It operates on a single power supply voltage ranging from 1.65V to 1.95V and supports standard SPI communication with a clock frequency up to 40MHz for fast read operations. The device utilizes an 8-TSSOP surface-mount package and functions within a temperature range of -40°C to 85°C.

Feature Summary

• Supports standard SPI interface with high-speed clock frequencies up to 40MHz for efficient data retrieval.
• Features flexible architecture with uniform block and sector organization for targeted memory management.
• Includes hardware and software protection mechanisms, such as write enable latches and block protect bits.
• Designed for low power consumption with minimal active and standby current requirements.

Applications

• Embedded systems requiring non-volatile code storage
• Data logging applications in portable devices
• Firmware storage for microcontrollers

Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm the part status indicates end-of-life availability and assess alternative sourcing options if long-term supply continuity is required for production.

Selection Notes

Select this component when a low-voltage operation between 1.65V and 1.95V is necessary. Ensure the application environment remains within the specified operating temperature range of -40°C to 85°C. Verify that the 8-TSSOP package dimensions fit the target PCB layout constraints.

Part Context

This component belongs to the FT25L04 series of serial flash memories. It provides 4M-bit capacity organized into sectors and blocks. The 'RB' suffix typically denotes specific packaging or tape-and-reel configuration details defined by the manufacturer.

Replacement Considerations

SST25WF040B-40I/SN by Microchip Technology is listed as a similar replacement option.

FAQ

What is the maximum clock frequency supported for fast read commands?

The device supports a maximum clock frequency of 40MHz for fast read operations with a 30pF load.

How does the Block Protect feature function?

Block Protect bits define specific areas of the memory array that are protected against Page Program and Erase commands via the Status Register.