32-bit MCU+FPU. STM32L432KB Datasheet

STM32L432KB MCU+FPU. Datasheet pdf. Equivalent

Part STM32L432KB
Description Ultra-low-power Arm Cortex-M4 32-bit MCU+FPU
Feature STM32L432KB STM32L432KC Ultra-low-power Arm® Cortex®-M4 32-bit MCU+FPU, 100DMIPS, up to 256KB Flash.
Manufacture STMicroelectronics
Download STM32L432KB Datasheet

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

CRC calculation unit, 96-bit unique ID
Development support: serial wire debug
(SWD), JTAG, Embedded Trace Macrocell™
All packages are ECOPACK2® compliant
DS11451 Rev 4

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