FM32274

更新时间： 2024-01-10 17:33:01

品牌	Logo	应用领域
铁电 - RAMTRON		/
页数	文件大小	规格书
21页	274K
描述
5V Integrated Processor Companion with Memory

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技术参数
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FM32274 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	SOIC	包装说明：	SOP,
针数：	14	Reach Compliance Code：	unknown
HTS代码：	8542.39.00.01	风险等级：	5.84
商用集成电路类型：	CONSUMER CIRCUIT	JESD-30 代码：	R-PDSO-G14
JESD-609代码：	e3	长度：	8.64 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	14	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	260
认证状态：	Not Qualified	座面最大高度：	1.75 mm
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	4 V
表面贴装：	YES	温度等级：	INDUSTRIAL
端子面层：	Matte Tin (Sn)	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	3.9 mm
Base Number Matches：	1

FM32274 数据手册

FM32278/276/274/272

5V Integrated Processor Companion with Memory

Features

Ferroelectric Nonvolatile RAM

High Integration Device Replaces Multiple Parts

•

4Kb, 16Kb, 64Kb, and 256Kb versions

Unlimited Read/Write Endurance

45 year Data Retention

•

Serial Nonvolatile Memory

Low Voltage Reset

Watchdog Timer

NoDelay™ Writes

Early Power-Fail Warning/NMI

Two 16-bit Event Counters

Serial Number with Write-lock for Security

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

Processor Companion

•

Active-low Reset Output for V_DDand Watchdog

Programmable V_DDReset Trip Point

Easy to Use Configurations

Manual Reset Filtered and Debounced

Programmable Watchdog Timer

•

Operates from 4.0 to 5.5V

14-pin “Green”/RoHS SOIC package (-G)

Pin Compatible with FM3127x Series

Low Operating Current

Dual Battery-backed Event Counter Tracks

System Intrusions or other Events

•

Comparator for Early Power-Fail Interrupt

64-bit Programmable Serial Number with Lock

-40°C to +85°C Operation

Underwriters Laboratory (UL) Recognized

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.

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.

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.

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.

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 V_DD

This product conforms to specifications per the terms of the Ramtron

standard warranty. The product has completed Ramtron’s internal

qualification testing and has reached production status.

Ramtron International Corporation

1850 Ramtron Drive, Colorado Springs, CO 80921

(800) 545-FRAM, (719) 481-7000

http://www.ramtron.com

Rev. 3.0

Feb. 2009

Page 1 of 21

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与FM32274相关器件

型号	品牌	获取价格	描述	数据表
FM32274-GTR	RAMTRON	获取价格	Consumer Circuit, PDSO14, GREEN, MS-012AB, SOIC-14
FM32276	RAMTRON	获取价格	5V Integrated Processor Companion with Memory
FM32278	RAMTRON	获取价格	5V Integrated Processor Companion with Memory
FM32278-GTR	RAMTRON	获取价格	Consumer Circuit, PDSO14, GREEN, MS-012AB, SOIC-14
FM3264	ETC	获取价格	Integrated Processor Companion with Memory
FM3264-G	ETC	获取价格	Integrated Processor Companion with Memory
FM3264-S	ETC	获取价格	Integrated Processor Companion with Memory
FM32L272	RAMTRON	获取价格	3V Integrated Processor Companion with Memory
FM32L272-G	RAMTRON	获取价格	3V Integrated Processor Companion with Memory
FM32L272-GTR	RAMTRON	获取价格	3V Integrated Processor Companion with Memory

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