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| 型号： | FM32276-GTR |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| 封装： | GREEN, MS-012AB, SOIC-14 |
| 文件页数： | 1/21页 |
| 文件大小： | 417K |
| 代理商： | FM32276-GTR |
This product conforms to specifications per the terms of the Ramtron
Ramtron International Corporation
standard warranty. The product has completed Ramtron’s internal
1850 Ramtron Drive, Colorado Springs, CO 80921
qualification testing and has reached production status.
(800) 545-FRAM, (719) 481-7000
http://www.ramtron.com
Rev. 3.1
July 2010
Page 1 of 21
FM32278/276/274/272
5V Integrated Processor Companion with Memory
Features
High Integration Device Replaces Multiple Parts
Serial Nonvolatile Memory
Low Voltage Reset
Watchdog Timer
Early Power-Fail Warning/NMI
Two 16-bit Event Counters
Serial Number with Write-lock for Security
Processor Companion
Active-low Reset Output for VDD and Watchdog
Programmable VDD Reset Trip Point
Manual Reset Filtered and Debounced
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
Ferroelectric Nonvolatile RAM
4Kb, 16Kb, 64Kb, and 256Kb versions
Unlimited Read/Write Endurance
45 year Data Retention
NoDelay Writes
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
Companion Controlled via 2-wire Interface
Easy to Use Configurations
Operates from 4.0 to 5.5V
14-pin “Green”/RoHS SOIC package (-G)
Pin Compatible with FM3127x Series
Low Operating Current
-40
°C to +85°C Operation
Underwriters Laboratory (UL) Recognized
Description
The FM3227x 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, 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 4.0 to 5.5V.
The FM3227x family is software and pinout
compatible with the FM3127x family which also
includes a real-time clock. The common features
allow a system design that easily can be assembled
with or without timekeeping by simply selecting the
FM3127x or FM3227x, respectively.
Each FM3227x 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 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 the FM3227x offers a dual event
counter that tracks the number of rising or falling
edges detected on dedicated input pins. The counter
can optionally be battery backed and even battery
operated by attaching a backup power source to the
VBAK pin. If VBAK is connected to a battery or
capacitor, then events will be counted even in the
absence of VDD.
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PDF描述 |
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| FM32276-G | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| FM32278-GTR | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| FM32278-G | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| FM32L272-GTR | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| FM32L272-G | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| FM32278 | 制造商:RAMTRON 制造商全称:RAMTRON 功能描述:5V Integrated Processor Companion with Memory |
| FM32278-G | 功能描述:F-RAM 256K w/Pwr Mon WDT Bat Sw PF Ser Num RoHS:否 存储容量:512 Kbit 组织:64 K x 8 接口:SPI 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube 制造商:Cypress Semiconductor |
| FM32278-GTR | 功能描述:F-RAM 256K w/Pwr Mon WDT Bat Sw PF Ser Num RoHS:否 存储容量:512 Kbit 组织:64 K x 8 接口:SPI 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube 制造商:Cypress Semiconductor |
| FM3264 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Integrated Processor Companion with Memory |
| FM3264-G | 功能描述:监控电路 64K w/Pwr Mon WDT Bat Sw Pwr Fail RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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