STM32L431KBU6 vs STM32L442KCU6 Comparison
Detailed side-by-side comparison of STM32L431KBU6 by STMicroelectronics and STM32L442KCU6 by STMicroelectronics. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
STMicroelectronics
STM32L431KBU6 - 80MHz Cortex-M4 128KB MCU | STMicroelectronics
STM32L431KBU6 ✓ ActiveSTMicroelectronics
STM32L442KCU6 - 80MHz Cortex-M4 256KB MCU | STMicroelectronics
STM32L442KCU6 ✓ ActiveSpecification Comparison
| Parameter | STM32L431KBU6 | STM32L442KCU6 |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Product Type | Ultra-low-power 32-bit microcontroller | 32-bit ultra-low-power microcontroller |
| Manufacturer | STMicroelectronics | — |
| Processor Core | Arm Cortex-M4 | Arm Cortex-M4 |
| Instruction Set | 32-bit Arm Thumb-2 | — |
| Maximum CPU Frequency | 80 MHz | — |
| Flash Memory | 128 KB | 256 KB |
| Flash Organization | 128K x 8 bits | — |
| Floating-Point Unit | Single-precision FPU | — |
| DSP Instruction Support | Yes | — |
| Package | 32-pin UFQFPN | 32-pin UFQFPN, 5 x 5 mm |
| Package Dimensions | 5 mm x 5 mm | — |
| Mounting Type | Surface mount | Surface mount |
| Operating Temperature Range | [DATA_NEEDED: Operating Temperature Range] | [DATA_NEEDED: operating temperature range] |
| Supply Voltage Range | [DATA_NEEDED: Supply Voltage Range] | — |
| RAM Capacity | [DATA_NEEDED: RAM Capacity] | — |
| GPIO Count | [DATA_NEEDED: GPIO Count] | — |
| ADC Resolution | [DATA_NEEDED: ADC Resolution] | — |
| RoHS Status | [DATA_NEEDED: RoHS Status] | [DATA_NEEDED: RoHS status] |
| REACH Status | [DATA_NEEDED: REACH Status] | [DATA_NEEDED: REACH status] |
| AEC-Q100 Qualification | [DATA_NEEDED: AEC-Q100 Qualification] | — |
| Lead-Free Status | [DATA_NEEDED: Lead-Free Status] | — |
| Maximum Core Frequency | — | 80 MHz |
| Architecture | — | 32-bit RISC |
| Supply Voltage | — | 2.5 V / 3.3 V |
| USB Support | — | Supported |
| Hardware Encryption | — | AES-256 |
| RAM Size | — | [DATA_NEEDED: RAM size] |
| Number of I/O Pins | — | [DATA_NEEDED: I/O pin count] |
| Operating Temperature | — | [DATA_NEEDED: operating temperature range] |
| Moisture Sensitivity Level | — | [DATA_NEEDED: MSL rating] |
| Exposed Pad | — | [DATA_NEEDED: exposed-pad connection] |