データシートサーチシステム
  Japanese  ▼
ALLDATASHEET.JP

X  

FM31256-S データシート(PDF) 1 Page - List of Unclassifed Manufacturers

部品番号 FM31256-S
部品情報  Integrated Processor Companion with Memory
Download  22 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
メーカー  ETC1 [List of Unclassifed Manufacturers]
ホームページ  
Logo ETC1 - List of Unclassifed Manufacturers

FM31256-S データシート(HTML) 1 Page - List of Unclassifed Manufacturers

  FM31256-S Datasheet HTML 1Page - List of Unclassifed Manufacturers FM31256-S Datasheet HTML 2Page - List of Unclassifed Manufacturers FM31256-S Datasheet HTML 3Page - List of Unclassifed Manufacturers FM31256-S Datasheet HTML 4Page - List of Unclassifed Manufacturers FM31256-S Datasheet HTML 5Page - List of Unclassifed Manufacturers FM31256-S Datasheet HTML 6Page - List of Unclassifed Manufacturers FM31256-S Datasheet HTML 7Page - List of Unclassifed Manufacturers FM31256-S Datasheet HTML 8Page - List of Unclassifed Manufacturers FM31256-S Datasheet HTML 9Page - List of Unclassifed Manufacturers Next Button
Zoom Inzoom in Zoom Outzoom out
 1 / 22 page
background image
Product Preview
This is a product in development. Characteristic data
Ramtron International Corporation
and other specifications are subject to change without notice.
1850 Ramtron Drive, Colorado Springs, CO 80921
(800) 545-FRAM, (719) 481-7000
www.ramtron.com
Rev 0.2
May 2003
Page 1 of 22
FM3104/16/64/256
Integrated Processor Companion with Memory
Features
High Integration Device Replaces Multiple Parts
Serial Nonvolatile Memory
Real-time Clock (RTC)
Low Voltage Reset
Watchdog Timer
Early Power-Fail Warning/NMI
Two 16-bit Event Counters
Serial Number with Write-lock for Security
Ferroelectric Nonvolatile RAM
4Kb, 16Kb, 64Kb, and 256Kb 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 (6pF)
Software Calibration
Supports Battery or Capacitor Backup
Processor Companion
Active-low Reset Output for VDD and Watchdog
Programmable VDD Reset Trip Point
Manual Reset Filtered and De-bounced
Programmable Watchdog Timer
Dual Battery-backed Event Counter Tracks
System Intrusions or other Events
Comparator for Early Power-Fail Interrupt
64-bit Programmable Serial Number with Lock
Fast Two-wire Serial Interface
Up to 1 MHz Maximum Bus Frequency
Supports Legacy Timing for 100 kHz & 400 kHz
Device Select Pins for up to 4 Memory Devices
RTC, Supervisor Controlled via 2-wire Interface
Easy to Use Configurations
Operates from 2.7 to 5.5V
Small Footprint 14-pin SOIC
Low Operating Current
-40
°C to +85°C Operation
Description
The FM31xxx is a family of integrated devices that
includes the most commonly needed functions for
processor-based systems. Major features include
nonvolatile memory available in various sizes, 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 an early power-fail (NMI) interrupt or
other purpose. The family operates from 2.7 to 5.5V.
Each FM31xxx provides nonvolatile RAM available
in sizes including 4Kb, 16Kb, 64Kb, and 256Kb
versions. Fast write speed and unlimited endurance
allow the memory to serve as extra RAM or
conventional nonvolatile storage. This memory is
truly nonvolatile rather than battery backed.
The real-time clock (RTC) provides time and date
information in BCD format. It can be permanently
powered from external backup voltage source, either
a battery or a capacitor. The timekeeper uses a
common external 32.768 kHz crystal and provides a
calibration mode that allows software adjustment of
timekeeping accuracy.
The processor companion includes commonly needed
CPU support functions. Supervisory functions
include a reset output signal controlled by either a
low VDD condition or a watchdog timeout. /RST
goes active when VDD drops below a programmable
threshold and remains active for 100 ms after VDD
rises above the trip point. A programmable watchdog
timer runs from 100 ms to 3 seconds. The watchdog
timer is optional, but if enabled it will assert the reset
signal for 100 ms if not restarted by the host before
the timeout. A flag-bit indicates the source of the
reset.
A general-purpose comparator compares an external
input pin to the onboard 1.2V reference. This is
useful for generating a power-fail interrupt (NMI) but
can be used for any purpose. The family also includes
a programmable 64-bit serial number that can be
locked making it unalterable. Additionally it offers a
dual battery-backed event counter that tracks the
number of rising or falling edges detected on
dedicated input pins.


同様の部品番号 - FM31256-S

メーカー部品番号データシート部品情報
logo
Ramtron International C...
FM31256-G RAMTRON-FM31256-G Datasheet
546Kb / 25P
   Integrated Processor Companion with Memory
logo
Cypress Semiconductor
FM31256-G CYPRESS-FM31256-G Datasheet
773Kb / 27P
   Integrated Processor Companion with Memory
FM31256-GTR CYPRESS-FM31256-GTR Datasheet
773Kb / 27P
   Integrated Processor Companion with Memory
More results

同様の説明 - FM31256-S

メーカー部品番号データシート部品情報
logo
List of Unclassifed Man...
FM3204 ETC1-FM3204 Datasheet
273Kb / 20P
   Integrated Processor Companion with Memory
logo
Ramtron International C...
FM31256 RAMTRON-FM31256_11 Datasheet
455Kb / 26P
   Integrated Processor Companion with Memory
FM3104 RAMTRON-FM3104 Datasheet
546Kb / 25P
   Integrated Processor Companion with Memory
logo
Cypress Semiconductor
FM31256-GTR CYPRESS-FM31256-GTR Datasheet
773Kb / 27P
   Integrated Processor Companion with Memory
FM31256-G CYPRESS-FM31256-G Datasheet
773Kb / 27P
   Integrated Processor Companion with Memory
logo
Ramtron International C...
FM31L278 RAMTRON-FM31L278 Datasheet
330Kb / 25P
   3V Integrated Processor Companion with Memory
FM32L278 RAMTRON-FM32L278 Datasheet
275Kb / 21P
   3V Integrated Processor Companion with Memory
logo
Cypress Semiconductor
FM31278 CYPRESS-FM31278 Datasheet
862Kb / 26P
   5V Integrated Processor Companion with Memory
logo
Ramtron International C...
FM33256 RAMTRON-FM33256 Datasheet
316Kb / 28P
   3V Integrated Processor Companion with Memory
FM33256 RAMTRON-FM33256_09 Datasheet
319Kb / 28P
   3V Integrated Processor Companion with Memory
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22


データシート ダウンロード

Go To PDF Page


リンク URL




プライバシーポリシー
ALLDATASHEET.JP
ALLDATASHEETはお客様のビジネスに役立ちますか?  [ DONATE ] 

Alldatasheetは   |   広告   |   お問い合わせ   |   プライバシーポリシー   |   リンク交換   |   メーカーリスト
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com