INFINEON TECHNOLOGIESFM3164-GIC: FRAM memory

F-RAM Processor Companion Integrated devices that includes the most commonly needed functions for processor-based systems. Serial Nonvolatile FRAM Memory Real-time Clock (RTC) Low Voltage Reset Watchdog Timer Early Power-Fail Warning/NMI Two 16-bit Event Counters Serial Number with Write-lock for Security Battery-backed switchover Event Counter Tracking I²C interface 256-Kbit ferroelectric random access memory (F-RAM) Logically organized as 32 K x 8 High-endurance 100 trillion (1014) read/writes 151-year data retention NoDelay™ writes Advanced high-reliability ferroelectric process High Integration Device Replaces Multiple Parts Serial Non volatile memory Real time clock (RTC) with alarm Low VDD detection drives reset Watchdog window timer Early power-fail warning / NMI 16-bit Non volatile event counter Serial number with write-lock for security Real-time Clock/Calendar Backup current at 2 V: 1.15 μA at +25 °C Seconds through centuries in BCD format Tracks leap years through 2099 Uses standard 32.768 kHz crystal (6 pF/12.5 pF) Software calibration Supports battery or capacitor backup Programmable watchdog window timer Non volatile event counter tracks system intrusions or other events Comparator for power-fail interrupt or other use 64-bit programmable serial number with lock Fast serial peripheral interface (SPI) Up to 16-MHz frequency RTC, Supervisor controlled via SPI interface Supports SPI mode 0 (0, 0) and mode 3 (1, 1) 1.1 mA active current at 1 MHz 150 μA standby current Operating voltage: VDD = 2.7 V to 3.6 V Industrial temperature: –40 °C to +85 °C