STM32L431RBI3 STMicroelectronics Integrated Circuit (BGA) In Stock
Ultra-low-power Arm® Cortex®-M4 32-bit MCU+FPU, 100DMIPS, up to 256KB Flash, 64KB SRAM, analog, audio
- Manufacturer
- STMicroelectronics
- Package
- BGA
- Pin Count
- 64
- Lifecycle
- ACTIVE
- Datasheet
- STM32L431RBI3 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Specifications
| Factory Lead Time | 12Weeks |
| YTEOL | 9 |
| Has ADC | YES |
| Bit Size | 32 |
| Clock Frequency-Max | 48MHz |
| DMA Channels | YES |
| Number of I/O Lines | 52 |
| PWM Channels | YES |
| Package Shape | SQUARE |
| Package Style | GRID ARRAY, VERY THIN PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Speed | 80MHz |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 1.8V |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Terminal Form | BALL |
| Terminal Pitch | 0.5mm |
| Terminal Position | BOTTOM |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | BGA |
Compliance & Regulatory
| RoHS Status | Compliant |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.25 |
| Country of Origin | Mainland China, Taiwan |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for STM32L431RBI3:
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4 CPU, 80MHz, CMOS, PBGA64
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4 CPU, 80MHz, CMOS, PBGA64
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4 CPU, 80MHz, CMOS, PBGA64
Frequently Asked Questions
What is the price of STM32L431RBI3?
STM32L431RBI3 is priced from competitive USD depending on quantity. Submit an RFQ on FindMyChip for the best current pricing from authorized China distributors.
Is STM32L431RBI3 in stock?
STM32L431RBI3 is currently available at FindMyChip. We maintain stock from authorized distributors and ship worldwide with typical 3-7 business day lead time.
Where can I buy STM32L431RBI3?
You can buy STM32L431RBI3 from FindMyChip, a B2B electronic component platform sourcing from China distributors. We offer competitive pricing and low MOQ for STM32L431RBI3 from STMicroelectronics.
What is the datasheet for STM32L431RBI3?
The official STM32L431RBI3 datasheet from STMicroelectronics contains full specifications including pin configuration, electrical characteristics, and application notes. Download it directly from the datasheet section above.
What package does STM32L431RBI3 come in?
STM32L431RBI3 is available in BGA packaging. See the package diagram and pinout above for detailed dimensional information.
Related Guides
LM2904BQDGKRQ1 Selection Guide: Automotive Dual Op-Amp Variants, Packages, and Alternatives
How to choose the right LM2904BQ automotive dual op-amp variant: AEC-Q100 grade, offset voltage, package, and non-automotive alternatives explained.
May 27, 2026
ST3232CDR vs ST3232 Variants: RS-232 Transceiver Selection Guide
How to choose the right ST3232 RS-232 transceiver variant: compare ST3232CDR, ST3232BDR, ST3232BTR, ST3232CTR, and ST3232EBDR by supply voltage, package, temperature, and ESD rating.
May 27, 2026
ST3232CDR RS-232 Transceiver: Application Note & Design Guide
Complete design guide for the ST3232CDR RS-232 transceiver: charge-pump capacitor selection, PCB layout, ESD protection, and circuit examples for 3.3 V systems.
May 26, 2026
TPS613222ADBVR Selection Guide: How to Choose the Right Low-Power Boost Converter
How to choose between TPS613221ADBVR, TPS613222ADBVR, and TPS613223ADBVR: key parameters include quiescent current, output voltage, and switch current rating.
May 26, 2026
Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
More from STMicroelectronics
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”