| Parameters | |
|---|---|
| Series | STM32L4 |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 48-LQFP |
| Mfr | STMicroelectronics |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Supplier Device Package | 48-LQFP (7x7) |
| Speed | 80MHz |
| Oscillator Type | Internal |
| Core Processor | ARM® Cortex®-M4 |
| RAM Size | 64K x 8 |
| Number of I/O | 39 |
| Peripherals | Brown-out Detect/Reset, DMA, PWM, WDT |
| Voltage - Supply (Vcc/Vdd) | 1.71V ~ 3.6V |
| EEPROM Size | - |
| Program Memory Type | FLASH |
| Connectivity | CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART |
| Core Size | 32-Bit Single-Core |
| Program Memory Size | 256KB (256K x 8) |
| Data Converters | A/D 10x12b; D/A 2x12b |
| Package | Tray |
| Product Status | Active |
| Base Product Number | STM32L431 |
| REACH Status | REACH Unaffected |
| Standard Package | 1,500 |
| ECCN | 3A991A2 |
| HTSUS | 8542.31.0001 |
STM32L431CCT6 32-Bit Ultra-Low-Power MCU IC 80MHz 256KB FLASH
The STM32L431CCT6 is a high-performance 32-bit microcontroller (MCU) manufactured by STMicroelectronics, belonging to the STM32L4 series, designed for ultra-low-power and high-reliability embedded applications. It operates over an industrial temperature range of -40°C to +85°C, supporting a wide supply voltage range of 1.71V to 3.6V for flexible integration in battery-powered and industrial systems. Equipped with an ARM Cortex-M4 core with a single-precision floating-point unit (FPU) and DSP instructions, it runs at a maximum 80MHz clock speed, delivering 100 DMIPS, and features 256KB of in-system programmable Flash memory, 64KB of SRAM, 38 programmable I/O pins, RoHS compliance, MSL 3 rating (168 hours), and tray packaging for convenient assembly.
Alternative Microcontroller Models
● STM32L431CCU6: STMicroelectronics' pin-compatible variant with 48-pin UFQFPN package, identical performance for space-constrained designs
● STM32L431CBT6: STMicroelectronics' 128KB Flash variant, pin-compatible for cost-optimized, low-memory applications
● LPC54608J512ET180: NXP's 32-bit Cortex-M4 MCU with similar frequency and peripherals, suitable for cross-supplier substitution
● EFM32LG380F64: Silicon Labs' ultra-low-power 32-bit MCU, comparable power consumption and features for battery-powered designs
● GD32L433CCT6: GigaDevice's 32-bit MCU, pin-compatible with STM32L431CCT6, cost-effective domestic alternative with identical core and peripherals.