Product Summary

The FM33256-G is a 3V Integrated Processor Companion with Memory. The FM33256-G integrates 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 FM33256-G operates from 2.7 to 3.6V.

Parametrics

FM33256-G 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℃.

Features

FM33256-G features: (1)Serial Nonvolatile Memory; (2)Real-time Clock (RTC) with Alarm; (3)Low VDD Detection Drives Reset; (4)Watchdog Window Timer; (5)Early Power-Fail Warning/NMI; (6)16-bit Nonvolatile Event Counter; (7)Serial Number with Write-lock for Security.

Diagrams

FM33256-G block diagram

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