Product Summary

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 
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 

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
FM33256-GTR
FM33256-GTR

Ramtron

F-RAM 256K w/Pwr Mon WDT Bat Sw Pwr Fail

Data Sheet

Negotiable 
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
FM330
FM330

Rectron

Schottky (Diodes & Rectifiers) SM Schot Bar Rect SMC,3A,30V

Data Sheet

0-3000: $0.14
FM330-A
FM330-A

Other


Data Sheet

Negotiable 
FM330-AL
FM330-AL

Other


Data Sheet

Negotiable 
FM330-ALN
FM330-ALN

Other


Data Sheet

Negotiable 
FM330-AN
FM330-AN

Other


Data Sheet

Negotiable 
FM330-B
FM330-B

Other


Data Sheet

Negotiable