FM25L16B-DGTR

Memory IC Overview

The FM25L16B-DGTR is a 16-Kbit (2K × 8) Serial Peripheral Interface Ferroelectric Random Access Memory manufactured by Infineon Technologies. It operates within a voltage range of 2.7 V to 3.6 V and supports clock frequencies up to 20 MHz. The device functions across an industrial temperature range of –40 °C to +85 °C. It utilizes an advanced ferroelectric process to provide nonvolatile data storage with high endurance and fast write speeds.

Memory IC Feature Summary

• Performs write operations at bus speed without requiring write delays or data polling, enabling immediate subsequent bus cycles.
• Offers high-endurance capabilities supporting 10^14 read/write cycles, significantly exceeding standard EEPROM limits.
• Features sophisticated multi-tiered write protection including hardware WP pin control and software block protection for portions of the memory array.
• Supports SPI Mode 0 and Mode 3 communication protocols for direct hardware replacement of serial flash and EEPROM.

Memory IC Applications

• Data collection systems requiring frequent or rapid writes where write cycle criticality is high.
• Industrial controls demanding long write times avoidance to prevent data loss associated with serial flash or EEPROM.
• Nonvolatile memory applications needing reliable data retention for extended periods without complex overhead.

Memory IC Procurement Notes

Verify the specific package type required, as the datasheet indicates availability in both 8-pin SOIC and 8-pin DFN configurations. Confirm that the ordering suffix matches the desired physical footprint. Ensure compatibility with the system's SPI interface modes and voltage levels before procurement. Check for any specific environmental compliance requirements such as RoHS status if applicable to the target market.

Memory IC Selection Notes

Select this component when application requirements demand high write endurance and zero-write-delay performance compared to traditional nonvolatile memories. It is suitable for designs replacing serial flash or EEPROM where system reliability and write speed are paramount. Consider the industrial temperature range and low power consumption characteristics for embedded environments. Ensure the microcontroller supports the required SPI modes for seamless integration.

Memory IC Part Context

The FM25L16B belongs to the F-RAM™ series of ferroelectric random access memories developed originally by Cypress Semiconductor Corporation and now offered by Infineon Technologies. This product line leverages advanced ferroelectric processes to combine the speed of RAM with nonvolatile storage capabilities. The FM25L16B specifically targets applications needing robust data integrity and high-speed serial access.

Memory IC Replacement Considerations

The datasheet identifies the FM25L16B as a direct hardware replacement for serial flash and EEPROM devices with compatible pinouts. No specific alternative part numbers are listed in the provided documentation for direct substitution.