STM32L432KB STM32L432KC Ultra-low-power Arm Cortex -M4 32-bit MCU+FPU, 100DMIPS, up to 256KB Flash, 64KB SRAM, USB FS, analog, audio Datasheet - production data Features Ultra-low-power with FlexPowerControl 1.71 V to 3.6 V power supply UFQFPN32 (5x5) -40 C to 85/105/125 C temperature range Up to 26 fast I/Os, most 5 V-tolerant 8 nA Shutdown mode (2 wakeup pins) RTC with HW calendar, alarms and calibration 28 nA Standby mode (2 wakeup pins) Up to 3 capacitive sensing channels 280 nA Standby mode with RTC 11x timers: 1x 16-bit advanced motor-control, 1.0 A Stop 2 mode, 1.28 A with RTC 1x 32-bit and 2x 16-bit general purpose, 2x 16- 84 A/MHz run mode bit basic, 2x low-power 16-bit timers (available Batch acquisition mode (BAM) in Stop mode), 2x watchdogs, SysTick timer 4 s wakeup from Stop mode Memories Brown out reset (BOR) Up to 256 KB single bank Flash, Interconnect matrix proprietary code readout protection Core: Arm 32-bit Cortex -M4 CPU with FPU, 64 KB of SRAM including 16 KB with Adaptive real-time accelerator (ART hardware parity check Accelerator) allowing 0-wait-state execution Quad SPI memory interface from Flash memory, frequency up to 80 MHz, Rich analog peripherals (independent supply) MPU, 100DMIPS and DSP instructions 1x 12-bit ADC 5 Msps, up to 16-bit with Performance benchmark hardware oversampling, 200 A/Msps 1.25 DMIPS/MHz (Drystone 2.1) 2x 12-bit DAC output channels, low-power 273.55 CoreMark (3.42 CoreMark/MHz sample and hold 80 MHz) 1x operational amplifier with built-in PGA Energy benchmark 2x ultra-low-power comparators 176.7 ULPBench score 14x communication interfaces Clock Sources USB 2.0 full-speed crystal less solution 32 kHz crystal oscillator for RTC (LSE) with LPM and BCD Internal 16 MHz factory-trimmed RC (1%) 1x SAI (serial audio interface) Internal low-power 32 kHz RC (5%) 2x I2C FM+(1 Mbit/s), SMBus/PMBus Internal multispeed 100 kHz to 48 MHz 3x USARTs (ISO 7816, LIN, IrDA, modem) oscillator, auto-trimmed by LSE (better than 1x LPUART (Stop 2 wake-up) 0.25 % accuracy) 2x SPIs (and 1x Quad SPI) Internal 48 MHz with clock recovery CAN (2.0B Active) 2 PLLs for system clock, USB, audio, ADC SWPMI single wire protocol master I/F IRTIM (Infrared interface) 14-channel DMA controller True random number generator May 2018 DS11451 Rev 4 1/156 This is information on a product in full production. www.st.comSTM32L432KB STM32L432KC CRC calculation unit, 96-bit unique ID All packages are ECOPACK2 compliant Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell 2/156 DS11451 Rev 4