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Infineon Technologies FM31L278-G
- Part No.:
- FM31L278-G
- Manufacturer:
- Infineon Technologies
- Category:
- Specialized ICs
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Description:
- IC PROCESSOR COMPANION 14SOIC
- Quantity:
Unit Price:$13.14
Ext Price:$13.14
- Payment:
- Shipping:
Product Details
FM31L278-G - 3-Volt 256-Kbit F-RAM Processor Companion
FM31L278-G from Infineon Technologies is an end-of-life 3 V processor companion combining 256-Kbit I2C F-RAM, RTC, supervision, watchdog and event counters in a 14-lead SOIC tube package.
Specifications were checked against the manufacturer data sheet and current distributor listing.
Overview
FM31L278-G integrates 256-Kbit instant-write F-RAM, real-time clock/calendar, programmable low-voltage reset, watchdog, battery switchover, event counters and a lockable serial number for 3 V systems.
Key Advantages
Combines high-endurance nonvolatile logging and battery-backed RTC functions at 2.7 V to 3.6 V.
Reduces support-component count with reset, watchdog, power-fail and dual event counters.
Available in an established surface-mount or through-hole ordering format.
Electrical and environmental limits are defined by the official data sheet.
Feature Summary
256-Kbit F-RAM processor companion
I2C up to 1 MHz
2.7 V to 3.6 V; -40 C to +85 C
14-SOIC (0.154", 3.90mm Width)
Package & Footprint
This ordering code uses the 14-SOIC (0.154", 3.90mm Width) package.
Pin Functions
Confirm exact numbering and the latest land pattern before PCB release.
Key Specifications
| F-RAM density | 256 Kbit |
|---|---|
| Organization | 32K x 8 |
| Write endurance | 100 trillion cycles |
| Data retention | 151 years at 65 C |
| Interface | I2C up to 1 MHz |
| RTC | Battery-backed calendar |
| Watchdog | Programmable 100 ms to 3 s |
| Event counters | Two nonvolatile counters |
| Serial number | 64-bit programmable and lockable |
| Supply | 2.7 V to 3.6 V |
| Temperature | -40 C to +85 C |
| Package | 14-lead SOIC |
| Lifecycle | End of life / discontinued |
Replacement Considerations
FM31L278-GTR is a related product in the library. Confirm electrical behavior, package, pinout, ordering media and configuration before substitution.
Similarity of family name or package does not establish drop-in compatibility.
Manufacturer Information
Infineon marks FM31L278-G discontinued and Mouser references a 2025 product-discontinuation notice.
Applications
Combines event logging, timekeeping and reset supervision around a microcontroller.
Stores frequently updated records without write delay or wear management.
Quality & Authenticity
Match the complete ordering code, package marking and reel or lot label to authorized-channel records. Inspect moisture handling and solderability requirements before assembly.
FAQ
What is the main function?
256-Kbit F-RAM processor companion
What package is used?
14-SOIC (0.154", 3.90mm Width)
Can the related part be substituted directly?
No. Validate all electrical, mechanical and configuration differences first.
Is the package image ready?
No. The registered package JPG is currently missing.
Engineering Notice
Use the latest manufacturer documentation for schematic, PCB, thermal and production approval. Distributor attributes are useful for sourcing but do not replace the official data sheet.
FM31L278-G Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Processor Companion
- Applications:
- Processor-Based Systems
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
- Grade:
- -
- Qualification:
- -
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Inventory:504
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In Stock:504
| Qty. | Unit Price | Ext. Price |
| 1+ | $13.14 | $13.14 |
| 10+ | $12.38 | $123.80 |
| 25+ | $12.08 | $302.00 |
| 50+ | $11.83 | $591.50 |
| 100+ | $11.44 | $1144.00 |
| 250+ | $11.24 | $2810.00 |
