FM33256

Preliminary FM33256/FM3316 3V Integrated Processor Companion with Memory Features High Integration Device Replaces Multiple Parts Serial Nonvolatile Memory Real-time Clock (RTC) with Alarm Low VDD Detection Drives Reset Watchdog Window Timer Early Power-Fail Warning/NMI 16-bit Nonvolatile Event Counter Serial Number with Write-lock for Security www.DataSheet4U.com Processor Companion Active-low Reset Output for VDD and Watchdog Programmable Low-VDD Reset Thresholds Manual Reset Filtered and Debounced Programmable Watchdog Window Timer Nonvolatile Event Counter Tracks System Intrusions or other Events Comparator for Power-Fail Interrupt or Other Use 64-bit Programmable Serial Number with Lock Fast SPI Interface Up to 16 MHz Maximum Bus Frequency RTC, Supervisor Controlled via SPI Interface SPI Mode 0 & 3 (CPOL, CPHA=0,0 & 1,1) Easy to Use Configurations Operates from 2.7 to 3.6V Small Footprint “Green” 14-pin SOIC (-G) Low Operating Current, 50µA Standby Current -40°C to +85°C Operation Ferroelectric Nonvolatile RAM 256Kb and 16Kb versions Unlimited Read/Write Endurance 10 year Data Retention NoDelay™ Writes Real-time Clock/Calendar Backup Current under 1 µA Seconds through Centuries in BCD format Tracks Leap Years through 2099 Uses Standard 32.768 kHz Crystal Software Calibration Supports Battery or Capacitor Backup Description The FM33256 and FM3316 are devices that integrate FRAM memory with the most commonly...