STM32L031X4 Datasheet, PDF (1/118 Pages) STMicroelectronics – Access line ultra-low-power 32-bit MCU ARM-based Cortex-M0+, up to 32KB Flash, 8KB SRAM, 1KB EEPROM, ADC

STM32L031x4 STM32L031x6
Access line ultra-low-power 32-bit MCU ARM^®-based
Cortex^®-M0+, up to 32KB Flash, 8KB SRAM, 1KB EEPROM, ADC
Datasheet - production data
Features
 Ultra-low-power platform
– 1.65 V to 3.6 V power supply
– -40 to 125 °C temperature range
– 0.23 µA Standby mode (2 wakeup pins)
– 0.35 µA Stop mode (16 wakeup lines)
– 0.6 µA Stop mode + RTC + 8 KB RAM retention
– Down to 76 µA/MHz in Run mode
– 5 µs wakeup time (from Flash memory)
– 41 µA 12-bit ADC conversion at 10 ksps
 Core: ARM^® 32-bit Cortex^®-M0+
– From 32 kHz up to 32 MHz max.
– 0.95 DMIPS/MHz
 Reset and supply management
– Ultra-safe, low-power BOR (brownout reset)
with 5 selectable thresholds
– Ultralow power POR/PDR
– Programmable voltage detector (PVD)
 Clock sources
– 1 to 25 MHz crystal oscillator
– 32 kHz oscillator for RTC with calibration
– High speed internal 16 MHz factory-trimmed RC
(+/- 1%)
– Internal low-power 37 kHz RC
– Internal multispeed low-power 65 kHz to
4.2 MHz RC
– PLL for CPU clock
 Pre-programmed bootloader
– USART, SPI supported
 Development support
– Serial wire debug supported
 Up to 38 fast I/Os (31 I/Os 5V tolerant)
 Memories
– Up to 32 KB Flash with ECC
– 8 KB RAM
– 1 KB of data EEPROM with ECC
– 20-byte backup register
– Sector protection against R/W operation
TSSOP20 _{UFQFPN28 4x4 mm}
169 mils _{UFQFPN32 5x5 mm}
LQFP32/48
7x7 mm
WLCSP25
2.097x2.493 mm
–
 Rich Analog peripherals
– 12-bit ADC 1.14 Msps up to 10 channels (down
to 1.65 V)
– 2x ultra-low-power comparators (window mode
and wake up capability, down to 1.65 V)
 7-channel DMA controller, supporting ADC, SPI,
I2C, USART, Timers
 5x peripherals communication interface
 1x USART (ISO 7816, IrDA), 1x UART (low power)
 Up to 2 SPI interfaces, up to 16 Mbits/s
 1x I2C (SMBus/PMBus)
 8x timers: 1x 16-bit with up to 4 channels, 2x 16-bit
with up to 2 channels, 1x 16-bit ultra-low-power
timer, 1x SysTick, 1x RTC and 2x watchdogs
(independent/window)
 CRC calculation unit, 96-bit unique ID
 All packages are ECOPACK^®2
Table 1. Device summary
Reference
Part number
STM32L031x4
STM32L031x6
STM32L031G4, STM32L031K4,
STM32L031C4, STM32L031E4,
STM32L031F4
STM32L031G6, STM32L031K6,
STM32L031C6, STM32L031E6,
STM32L031F6
April 2016
This is information on a product in full production.
DocID027063 Rev 4
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