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Updated at 17/06/2025 10:30:15(UTC+8)
Certifications
ManyChip is committed to product quality and safety with ISO 9001, ISO 13485, ISO 45001, UL, RoHS, CQC and REACH certifications.
Description
- 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, realtime 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.
- 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
- • NoDelayô 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 VDDand Watchdog
- • Programmable VDDReset 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
FM31256 Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Show | |
| RoHS | RoHS Compliant |
| Lead-Free Status | Lead Free |
Order guide
-
TT in advance (bank transfer), Western Union, Credit card,
PayPal. Customer is responsible for shipping fee, bank
charges, duties and taxes.
-
- You can choose whether shipping charges will be charged through your shipping account or by us.
- Please confirm with the logistics company in advance for remote areas.
(Additional charges ($35-$50) may apply for delivery in these areas)
- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
Contact Us
If you have any problem,please email to sales@manychip.com, we will response as soon as possisble.
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