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FM32256-G PDF预览

FM32256-G

更新时间： 2024-02-29 19:04:23
品牌 Logo 应用领域
其他 - ETC 商用集成电路光电二极管
页数 文件大小 规格书
20页 273K
描述
Integrated Processor Companion with Memory

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中文翻译

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FM32256-G 技术参数

是否无铅： 不含铅是否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：unknownHTS代码：8542.39.00.01
风险等级：5.82Is Samacsys：N
商用集成电路类型：CONSUMER CIRCUITJESD-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)：2.7 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：MATTE TIN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

FM32256-G 数据手册

 浏览型号FM32256-G的Datasheet PDF文件第2页浏览型号FM32256-G的Datasheet PDF文件第3页浏览型号FM32256-G的Datasheet PDF文件第4页浏览型号FM32256-G的Datasheet PDF文件第5页浏览型号FM32256-G的Datasheet PDF文件第6页浏览型号FM32256-G的Datasheet PDF文件第7页 
Pre-Production  
FM3204/16/64/256  
Integrated Processor Companion with Memory  
Features  
High Integration Device Replaces Multiple Parts  
Ferroelectric Nonvolatile RAM  
•
•
•
•
•
•
Serial Nonvolatile Memory  
•
•
•
•
4Kb, 16Kb, 64Kb, and 256Kb versions  
Unlimited Read/Write Endurance  
10 year Data Retention  
Low Voltage Reset  
Watchdog Timer  
Early Power-Fail Warning/NMI  
Two 16-bit Event Counters  
Serial Number with Write-lock for Security  
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  
Processor Companion  
•
•
•
•
•
Active-low Reset Output for VDD and Watchdog  
Programmable VDD Reset Trip Point  
Manual Reset Filtered and Debounced  
Programmable Watchdog Timer  
Easy to Use Configurations  
•
•
Operates from 2.7 to 5.5V  
Dual Battery-backed Event Counter Tracks  
System Intrusions or other Events  
Small Footprint 14-pin SOIC (-S)  
o
“Green” 14-pin SOIC (-G)  
•
•
Comparator for Early Power-Fail Interrupt  
64-bit Programmable Serial Number with Lock  
•
•
•
Pin Compatible with FM31xx Series  
Low Operating Current  
-40°C to +85°C Operation  
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 FM32xx 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-  
V
DD 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.  
A general-purpose comparator compares an external  
input pin to the onboard 1.2V reference. This is  
useful for generating an early warning 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.  
The FM32xx family is software and pinout  
compatible with the FM31xx 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  
FM31xx or FM32xx, respectively.  
Additionally the FM32xx 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  
Each FM32xx 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.  
absence of VDD  
.
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  
This is a product in pre-production phase of development. Device  
characterization is complete and Ramtron does not expect to change  
the specifications. Ramtron will issue a Product Change Notice if  
any specification changes are made.  
Ramtron International Corporation  
1850 Ramtron Drive, Colorado Springs, CO 80921  
(800) 545-FRAM, (719) 481-7000  
www.ramtron.com  
Rev 2.1  
Dec. 2004  
Page 1 of 20  
1234567...20

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