STM32L431 datasheet(1/200 Pages) STMICROELECTRONICS

部件名	STM32L431

功能描述	RTC with HW calendar, alarms and calibration

PDF	200 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 200 page

This is information on a product in full production.

May 2016

DocID028800 Rev 1

1/200

STM32L431xx

Ultra-low-power ARM® Cortex®-M4 32-bit MCU+FPU, 100DMIPS,

up to 256KB Flash, 64KB SRAM, analog, audio

Datasheet

- production data

Features

• Ultra-low-power with FlexPowerControl

– 1.71 V to 3.6 V power supply

– -40 °C to 85/105/125 °C temperature range

– 200 nA in VBAT mode: supply for RTC and

32x32-bit backup registers

– 8 nA Shutdown mode (5 wakeup pins)

– 28 nA Standby mode (5 wakeup pins)

– 280 nA Standby mode with RTC

– 1.0 µA Stop 2 mode, 1.28 µA Stop 2 with

RTC

– 84 µA/MHz run mode

– Batch acquisition mode (BAM)

– 4 µs wakeup from Stop mode

– Brown out reset (BOR) in all modes except

shutdown

– 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/1.25DMIPS/MHz (Dhrystone

2.1), 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

– 4 to 48 MHz crystal oscillator

– 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, audio, ADC

• RTC with HW calendar, alarms and calibration

• Up to 21 capacitive sensing channels: support

touchkey, linear and rotary touch sensors

• 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 83 fast I/Os, most 5 V-tolerant

• Memories

– 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)

– 1× 12-bit ADC 5 Msps, up to 16-bit with

hardware oversampling, 200 µA/Msps

– 2x 12-bit DAC, low-power sample and hold

– 1x operational amplifier with built-in PGA

– 2x ultra-low-power comparators

• 15x communication interfaces

– 1x SAI (serial audio interface)

–3x I2C FM+(1 Mbit/s), SMBus/PMBus

– 4x USARTs (ISO 7816, LIN, IrDA, modem)

– 3x SPIs (4x SPIs with the Quad SPI)

– CAN (2.0B Active) and SDMMC interface

– SWPMI single wire protocol master I/F

– IRTIM (Infrared interface)

• 14-channel DMA controller

• True random number generator

• CRC calculation unit, 96-bit unique ID

UFBGA100 (7×7)

LQFP64 (10x10)

UFBGA64 (5x5)

LQFP48 (7x7)

LQFP100 (14x14)

WLCSP64

UFQFPN32 (5x5)

WLCSP49

UFQFPN48 (7x7)

www.st.com

类似零件编号 - STM32L431

制造商	部件名	数据表	功能描述
STMicroelectronics	STM32L432KB	2Mb / 149P	Batch acquisition mode 31-May-2016
	STM32L432KBU6	2Mb / 149P	Batch acquisition mode 31-May-2016
	STM32L432KC	2Mb / 149P	Batch acquisition mode 31-May-2016
	STM32L432KCU6	2Mb / 149P	Batch acquisition mode 31-May-2016
	STM32L433CB	2Mb / 225P	Ultra-low-power Arm® Cortex®-M4 32-bit MCUFPU, 100DMIPS, up to 256KB Flash, 64KB SRAM, USB FS, LCD, ext. SMPS 18-May-2018

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类似说明 - STM32L431

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NXP Semiconductors	PCF8523	1Mb / 66P	Real-Time Clock (RTC) and calendar Rev. 3-30 March 2011
STMicroelectronics	M41T81S	507Kb / 32P	Serial access real-time clock (RTC) with alarms 16-May-2012
NXP Semiconductors	PCF8523	700Kb / 75P	Real-Time Clock (RTC) and calendar Rev. 4-5 July 2012
STMicroelectronics	AN2604	139Kb / 14P	STM32F101xx and STM32F103xx RTC calibration 31-Aug-2007
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