Spezifikationen
FM25CL64B-GTR is an industrial-grade 64Kbit SPI FRAM manufactured by Infineon (formerly Cypress). Featuring instant high-speed write performance and ultra-high read/write endurance, it serves as a direct pin-to-pin replacement for SPI EEPROM and SPI Flash, ideal for frequent real-time data logging and crash-safe parameter storage.
👉 It is not low-end EEPROM with limited erase cycles, nor large-capacity 1Mbit FRAM like FM25V10. This low-cost small-volume FRAM is optimized for parameter and log storage in mid & small embedded devices.
Wesentliche Merkmale
- FRAM Core & Storage Specifications
- Capacity: 64Kbit (8K × 8-bit), full byte-level random access, no pre-page erase operation required
- Endurance: Up to 100 trillion (10¹⁴) read/write cycles, far exceeding the million-cycle limit of EEPROM, no wear leveling algorithm needed
- Data retention: 151 years guaranteed at 65°C for long-term maintenance-free storage
- NoDelay instant write: Data is permanently stored upon bus transmission completion without write latency, eliminating data loss during sudden power failure
- High-Speed SPI Interface
- Maximum SPI clock frequency up to 20MHz; supports SPI Mode 0 (0,0) and Mode 3 (1,1)
- Fully compatible with standard SPI EEPROM command sets for drop-in hardware replacement without PCB redesign
- Ultra-low access latency, suitable for high-frequency real-time sensor data buffering
- Multi-Layer Write Protection
- Hardware WP pin for full array write lockout
- Software write disable instruction; segmented block protection (1/4, 1/2 or entire memory array) to avoid accidental overwriting of critical configurations
- Low Power Electrical Characteristics
- Operating voltage range: 2.7V ~ 3.65V, compatible with standard 3.3V industrial main control systems
- Typical active current: 200μA @ 1MHz; sleep mode leakage current as low as 3μA, extending battery life for portable battery-powered equipment
- Package & Environmental Ratings
- Package: 8-pin narrow SOIC surface mount; suffix -GTR denotes tape-and-reel packaging for automated SMT mass production
- Industrial wide temperature range: -40°C ~ +85°C, stable operation in high/low-temperature workshops and outdoor monitoring equipment
- RoHS lead-free compliant, MSL3 moisture sensitivity level, withstands 260°C peak reflow soldering temperature
Typische Anwendungen
Parameter and fault log storage for industrial PLCs, servo drives and inverters
Instant metering data backup for smart water, electricity and gas meters
High-frequency sampling logging for wireless sensors and remote environmental monitoring terminals
Critical parameter storage for portable test & measurement instruments and medical monitoring devices
Transaction records and local configuration cache for POS terminals and self-service kiosks
Position and motion state memory for AGVs and small robots
Fault logs and operation records for UPS uninterruptible power supplies
User configuration storage for smart home central controllers and industrial HMI touch panels
LXB Semicon supplies original Infineon FM25CL64B-GTR SPI FRAM memory IC
