Product Summary

The FM33256 and FM3316 are devices that integrate FRAM memory with the most commonly needed functions for

 processor-based systems. Major features include nonvolatile memory, real-time clock, low-VDD reset, watchdog timer, nonvolatile event 

counter, lockable 64-bit serial number area, and general purpose comparator that can be used for a power-fail (NMI) interrupt or other purpose. The 
devices operate from 2.7 to 3.6V. 

Parametrics

Absolute Maximum Ratings:

  1. VDD, Power Supply Voltage with respect to VSS :-1.0V to +5.0V 
  2. VIN, Voltage on any signal pin with respect to VSS: -1.0V to +5.0V and VIN < VDD+1.0V 
  3. VBAK, Backup Supply Voltage: -1.0V to +4.5V 
  4. TSTG, Storage Temperature :-55℃ to + 125℃
  5. TLEAD Lead Temperature (Soldering, 10 seconds) :300℃
  6. VESD Electrostatic Discharge Voltage 
 - Human Body Model  (JEDEC Std JESD22-A114-B):TBD
 - Charged Device Model  (JEDEC Std JESD22-C101-A):TBD
      7.  Package Moisture Sensitivity Level:MSL-1


Features

  1. High Integration Device Replaces Multiple Parts
  2. Ferroelectric Nonvolatile RAM
  3. Real-time Clock/Calendar
  4. Processor Companion
  5. Fast SPI Interface
  6. Easy to Use Configurations

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
FM33256-G
FM33256-G
Ramtron
F-RAM 256K w/Pwr Mon WDT Bat Sw Pwr Fail
Data Sheet
Negotiable 
FM33256-GTR
FM33256-GTR
Ramtron
F-RAM 256K w/Pwr Mon WDT Bat Sw Pwr Fail
Data Sheet
Negotiable