STM32L431VCI3 STMicroelectronics Integrated Circuit (BGA) In Stock
STMicroelectronics STM32L431VCI3 is an ultra-low-power Arm Cortex-M4 MCU with FPU delivering 100 DMIPS at 80 MHz. Features 256KB Flash, 64KB SRAM, and integrated analog peripherals including 12-bit ADC and DAC. Available in UFBGA-100 package for battery-powered IoT and wearable applications.
- Manufacturer
- STMicroelectronics
- Package
- BGA
- Pin Count
- 100
- Lifecycle
- ACTIVE
- Datasheet
- STM32L431VCI3 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.4084(MOQ 100)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Arm Cortex-M4 with FPU at 80 MHz delivering 100 DMIPS while consuming as low as 28 µA/MHz in run mode
- 256 KB Flash and 64 KB SRAM with ART Accelerator enabling code execution at full CPU speed from Flash
- Integrated 12-bit ADC, DAC, op-amp, and comparator supporting on-chip analog signal conditioning without external ICs
Applications
The STM32L431VCI3 is designed for ultra-low-power IoT edge nodes, wearable health monitors, and smart home sensors requiring floating-point computation with minimal battery drain. Its 28 µA/MHz active current and sub-microamp stop modes allow years of operation from a CR2032 coin cell in intermittent-wake applications such as temperature loggers and occupancy detectors. The integrated FPU and rich analog peripherals also suit audio processing and motor control in compact industrial portable instruments.
Specifications
| Factory Lead Time | 12Weeks |
| YTEOL | 9 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | BGA |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.30 |
| Country of Origin | Mainland China, Philippines, Taiwan |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for STM32L431VCI3:
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4 CPU, 80MHz, CMOS, PBGA100
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4 CPU, 80MHz, CMOS, PBGA100
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4 CPU, 80MHz, CMOS, PBGA100
Frequently Asked Questions
What is the run-mode current consumption of the STM32L431VCI3 at 80 MHz, and how does that compare to sleep mode?
In run mode the STM32L431VCI3 consumes approximately 28 µA/MHz, equating to roughly 2.24 mA at its maximum 80 MHz clock. In stop mode 2 the current drops to about 0.4 µA, meaning a 250 mAh battery can sustain over 25 years of deep sleep with periodic 80 MHz wake cycles at 1 Hz duty.
How does the hardware FPU benefit DSP-intensive firmware on the STM32L431VCI3 compared to a Cortex-M0+ device?
The Cortex-M4 FPU executes single-precision floating-point multiply-accumulate in a single cycle, achieving 100 DMIPS at 80 MHz. A Cortex-M0+ at the same clock speed processes floating-point operations via software emulation, taking 20 to 200 cycles per operation. This difference matters in audio filters, PID loops, and sensor fusion algorithms that rely on heavy floating-point arithmetic.
Which package does the STM32L431VCI3 come in, and what pin count does it provide for peripheral connectivity?
The STM32L431VCI3 is housed in a UFBGA-100 package with 100 balls on a fine-pitch 0.5 mm grid. The 100-pin count provides access to multiple SPI, I2C, USART, SAI audio, USB, and CAN interfaces simultaneously, supporting multi-protocol designs in compact wearable and IoT gateway modules that require rich connectivity in a small PCB footprint.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $4.7900 | $479.00 |
| 250+ | $4.5800 | $1145.00 |
| 500+ | $4.1800 | $2090.00 |
| 2496+ | $3.9400 | $9834.24 |
| 9984+ | $3.4260 | $34205.58 |
| 19968+ | $3.4084 | $68058.53 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
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