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FM3204, FM3204-G/GTR, FM3204-GTR

Table of contents:
Info of FM3204
Info of FM3204-G/GTR
Info of FM3204-GTR

FM3204, FM3204-G/GTR, FM3204-GTR Selling Leads, Datasheet

MFG:RAMTRON Package Cooled:SOP14 D/C:08+

FM3204, FM3204-G/GTR, FM3204-GTR Picture

FM3204, FM3204-G/GTR, FM3204-GTR Datasheet download

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Part Number: FM3204

MFG: RAMTRON

Package Cooled: SOP14

D/C: 08+

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FM3204 General Description

FM32xx is a family of integrated devices that include 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 a
power-fail (NMI) interrupt or other purpose. The family operates from 2.7 to 5.5V.

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.

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.

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 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.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 absence of VDD.

FM3204 Maximum Ratings

Symbol	Description	Ratings
V_DD	Power Supply Voltage with respect to V_SS	-1.0V to +7.0V
V_IN	Voltage on any signal pin with respect to V_SS	-1.0V to +7.0V and V_IN < V_DD+1.0V,except SCL,SDA
V_BAK	Backup Supply Voltage	-1.0V to +4.5V
T_STG	Storage temperature	-55°C to + 125°C
T_LEAD	Lead temperature (Soldering, 10 seconds)	300°C

Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only, and the functional operation of the device at these or any other conditions above those listed in the operational section of this specification is not implied. Exposure to absolute maximum ratings conditions for extended periods may affect device reliability.

FM3204 Features

High Integration Device Replaces Multiple Parts
• Serial Nonvolatile Memory
• Low VDD Reset
• Watchdog Timer
• Voltage Comparator/NMI
• Event Counters
• Serial Number with Write-lock for Security
Processor Companion
• Active-low Reset Output for VDD and Watchdog
• Programmable Low VDD Reset Thresholds
• Manual Reset Filtered and De-bounced
• Programmable Watchdog Timer
• Dual Battery-backed Event Counter Tracks System Intrusions or other Events
• Comparator for Power-fail Interrupt or Other Use
• 64-bit Programmable Serial Number with Lock
Ferroelectric Nonvolatile RAM
• 4Kb, 16Kb, 64Kb, and 256Kb versions
• Unlimited Read/Write Endurance
• 10 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
• Supervisor Controlled via 2-wire Interface
Easy to Use Configurations
• Operates from 2.7 to 5.5V
• Small Footprint 14-pin SOIC (-S)
"Green" 14-pin SOIC (-G)
• Pin Compatible with FM31xx Series
• Low Operating Current, 150A Standby Current
• -40°C to +85°C Operation

FM3204 Connection Diagram

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