STMicroelectronics STM32L431CBU6TR Microcontrollers
32-bit ARM Cortex-M4 MCU, 48LQFP, 128KB Flash, 80MHz, 38 I/O
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
STM32L431CBU6TR
Base Model
Detailed Description
32-bit ARM Cortex-M4 MCU, 48LQFP, 128KB Flash, 80MHz, 38 I/O
Package
48-UFQFN Exposed Pad
Lifecycle Status
Active
Datasheet
STM32L431CBU6TR Datasheet
Quick Jump:
Technical Specifications
STMicroelectronics STM32L431CBU6TR Microcontrollers technical specifications.
General
RAM Size
64K x 8
Package / Case
48-UFQFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
1.71V ~ 3.6V
Lifecycle Status
Active
Peripherals
Brown-out Detect/Reset, DMA, PWM, WDT
Number of I/O
38
Speed
80MHz
Core Processor
ARM® Cortex®-M4
Alternate Parts Comparison (STM32L431CBU6TR vs STM32L151V8T6A vs STM32L071CBT6 vs STM32L071RBT6)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 48-UFQFN Exposed Pad | 100-LQFP | 48-LQFP | 64-LQFP |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Supply Voltage | 1.71V ~ 3.6V | 1.8V ~ 3.6V | 3 V | 3 V |
| Core Processor | ARM® Cortex®-M4 | ARM® Cortex®-M3 | ARM® Cortex®-M0+ | ARM® Cortex®-M0+ |
| Core Size | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core |
| RAM Size | 64K x 8 | 32K x 8 | 20 kB | 20 kB |
| Lifecycle Status | Active | Active | Production | Production |
| Connectivity | CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART | I²C, IrDA, LINbus, SPI, UART/USART, USB | I²C, IrDA, SPI, UART/USART | I²C, IrDA, SPI, UART/USART |
| Data Converters | A/D 10x12b; D/A 2x12b | A/D 24x12b; D/A 2x12b | A/D 13x12b | A/D 16x12b |
| Number of I/O | 38 | 83 | 37 | 51 |
| Oscillator Type | Internal | Internal | Internal | Internal |
| Action |
Cross Reference
Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .
Suggested replacements
MK02FN128VFM10NXP SemiconductorsNXP
IC MCU 32BIT 128KB FLASH 32QFN
MKV30F128VLF10NXP SemiconductorsNXP
IC MCU 32BIT 128KB FLASH 48LQFP
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