Product Summary

The FM31T378-G is a System Supervisor & Temperature Compensated RTC (TCXO) with Embedded Crystal. The FM31T378-G includes the most commonly needed functions for processor-based systems. Major features include nonvolatile F-RAM memory available in various sizes, temperature-compensated real-time clock with embedded crystal, 32.768kHz clock output, low-VDD reset, watchdog timer, battery backed event counter, event driven interrupt output, lockable 64-bit serial number area, general purpose comparator that can be used for an early power-fail (NMI) interrupt or other purpose, and 2-wire serial interface to a host microcontroller. The family operates from 2.7 to 5.5V.

Parametrics

FM31T378-G absolute maximum ratings: (1)VDD Power Supply Voltage with respect to VSS: -1.0V to +7.0V; (2)VIN Voltage on any signal pin with respect to VSS: -1.0V to +7.0V 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): 260℃; (6)VESD Electrostatic Discharge Voltage Human Body Model (AEC-Q100-002 Rev. E): 2kV; (7)Charged Device Model (AEC-Q100-011 Rev. B): 1.25kV; (8)Machine Model (AEC-Q100-003 Rev. E): 100V; (9)Package Moisture Sensitivity Level: MSL-1.

Features

FM31T378-G features: (1) High Integration Device Replaces Multiple Parts; (2) Ferroelectric Nonvolatile RAM; (3) Real-time Clock/Calendar; (4) Processor Companion; (5)Fast Two-wire Serial Interface; (6)Easy to Use Configurations.

Diagrams

FM31T378-G block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
FM31T378-G
FM31T378-G

Ramtron

F-RAM F-RAM 256K w/RTC pre-qual sample

Data Sheet

0-1: $6.15
1-10: $5.53
10-50: $5.00
50-100: $4.53
FM31T378-GTR
FM31T378-GTR

Ramtron

F-RAM F-RAM 256K w/RTC pre-qual sample

Data Sheet

0-2500: $3.68