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| PartNumber | STM32L432KBU6 | STM32L432KCU3 | STM32L432KBU6TR |
| Description | ARM Microcontrollers - MCU ARM Cortex-M4MCU 80 MHz, 128Kbytes Flash | ARM Microcontrollers - MCU Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 256 Kbytes Flash, USB | ARM Microcontrollers - MCU 16/32-BITS MICROS |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | UFQFPN-32 | UFQFPN-32 | UFQFPN-32 |
| Series | STM32L432KB | STM32L432KC | STM32L432KB |
| Core | ARM Cortex M4 | ARM Cortex M4 | ARM Cortex M4 |
| Data Bus Width | 32 bit | 32 bit | 32 bit |
| Maximum Clock Frequency | 80 MHz | 80 MHz | 80 MHz |
| Program Memory Size | 128 kB | 256 kB | 128 kB |
| Data RAM Size | 64 kB | 64 kB | 64 kB |
| ADC Resolution | 12 bit | 12 bit | 12 bit |
| Number of I/Os | 26 I/O | 26 I/O | 26 I/O |
| Operating Supply Voltage | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 125 C | + 85 C |
| Height | 0.6 mm | - | - |
| Length | 5 mm | - | - |
| Product | MCU+FPU | MCU+FPU | MCU+FPU |
| Program Memory Type | Flash | Flash | Flash |
| Width | 5 mm | - | - |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Data RAM Type | SRAM | SRAM | SRAM |
| Interface Type | CAN, I2C, SAI, SPI, USART, USB | CAN, I2C, SAI, SPI, USART, USB | CAN, I2C, SAI, SPI, USART, USB |
| DAC Resolution | 12 bit | 12 bit | 12 bit |
| Moisture Sensitive | Yes | Yes | - |
| Number of ADC Channels | 10 Channel | 10 Channel | 10 Channel |
| Number of Timers/Counters | 11 Timer | 11 Timer | 11 Timer |
| Processor Series | STM32L432 | STM32L432 | STM32L432 |
| Product Type | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
| Factory Pack Quantity | 2940 | 2940 | 3000 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 3.6 V | 3.6 V | 3.6 V |
| Supply Voltage Min | 1.71 V | 1.71 V | 1.71 V |
| Watchdog Timers | Watchdog Timer, Windowed | Watchdog Timer, Windowed | Watchdog Timer, Windowed |
| Unit Weight | - | 0.001728 oz | - |