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FM25V40-DGC is listed in the Memory IC range at ChipApex. The manufacturer field lists Ramtron. Its product description is NVRAM FRAM SERIAL. Review the specifications below when checking this part for your BOM.
Memory IC specifications for FM25V40-DGC
- Description：NVRAM FRAM SERIAL
- Series：*
- Mfr：Ramtron
- Package：Bulk
- Memory Type：-
- Memory Format：-
- Technology：-
- Memory Size：-
- Memory Organization：-
- Memory Interface：-
- Clock Frequency：-
- Write Cycle Time - Word, Page：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Access Time：-
- Grade：-
- Qualification：-
Memory IC datasheet and documents for FM25V40-DGC
Memory IC Overview
The FM25V40-DGC is a 4-Mbit (512 K × 8) Serial Ferroelectric RAM (F-RAM) manufactured by Ramtron International Corporation, now part of Cypress Semiconductor. It utilizes an advanced ferroelectric process to provide nonvolatile memory with high endurance and fast access speeds. The device features a Serial Peripheral Interface (SPI) compatible with Mode 0 and Mode 3, supporting clock frequencies up to 40 MHz. It operates within a voltage range of 2.0 V to 3.6 V and includes hardware and software write protection schemes. The component is housed in an 8-pin SOIC package.
Memory IC Feature Summary
- High Endurance: Supports 100 Trillion (10^14) read/write cycles.
- NoDelay Writes: Eliminates write latency associated with traditional flash memory.
- Direct Hardware Replacement: Designed as a drop-in replacement for serial flash memory.
- Advanced Ferroelectric Process: Ensures data retention without the need for charge pumping.
Memory IC Applications
- Data logging systems requiring frequent updates
- Industrial control applications needing high reliability
- Embedded systems replacing serial flash memory
- Automotive electronics demanding long-term data retention
Memory IC Procurement Notes
Verify the specific suffix 'DGC' against official Cypress/Ramtron documentation to confirm package type and temperature grade. Ensure compatibility with existing SPI controller configurations. Check for end-of-life status or obsolescence notices from the manufacturer before finalizing procurement plans.
Memory IC Selection Notes
Select this component when high endurance and low power consumption are critical. It is suitable for applications requiring frequent data writes where flash memory wear-out is a concern. Consider the 40 MHz SPI speed for high-throughput requirements. Verify that the 2.0 V to 3.6 V operating range matches the system power supply.
Memory IC Part Context
The FM25V40 series belongs to the F-RAM family, combining the nonvolatility of EEPROM/Flash with the speed and endurance of SRAM. Ramtron was acquired by Cypress Semiconductor, which later became part of Infineon Technologies. This series is designed to overcome the limitations of traditional nonvolatile memories in terms of write cycle endurance and power efficiency.
Memory IC Replacement Considerations
Check for direct pin-compatible substitutes such as other FM25Vxx variants. Verify if newer generations from Infineon offer improved specifications. Ensure any replacement maintains the same SPI interface and voltage levels.
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