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STM32L071CB Dataheets PDF



Part Number STM32L071CB
Manufacturers STMicroelectronics
Logo STMicroelectronics
Description Access line ultra-low-power 32-bit MCU
Datasheet STM32L071CB DatasheetSTM32L071CB Datasheet (PDF)

STM32L071x8 STM32L071xB STM32L071xZ Access line ultra-low-power 32-bit MCU Arm®-based Cortex®-M0+, up to 192KB Flash, 20KB SRAM, 6KB 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 – 0.29 µA Standby mode (3 wakeup pins) – 0.43 µA Stop mode (16 wakeup lines) – 0.86 µA Stop mode + RTC + 20-Kbyte RAM retention – Down to 93 µA/MHz in Run mode – 5 µs wakeup time (from Flash memory) – 41 µA 12-bit ADC convers.

  STM32L071CB   STM32L071CB


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STM32L071x8 STM32L071xB STM32L071xZ Access line ultra-low-power 32-bit MCU Arm®-based Cortex®-M0+, up to 192KB Flash, 20KB SRAM, 6KB 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 – 0.29 µA Standby mode (3 wakeup pins) – 0.43 µA Stop mode (16 wakeup lines) – 0.86 µA Stop mode + RTC + 20-Kbyte RAM retention – Down to 93 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+ with MPU – From 32 kHz up to 32 MHz max. – 0.95 DMIPS/MHz • Memories – Up to 192-Kbyte Flash memory with ECC(2 banks with read-while-write capability) – 20 -Kbyte RAM – 6 Kbytes of data EEPROM with ECC – 20-byte backup register – Sector protection against R/W operation • Up to 84 fast I/Os (78 I/Os 5V tolerant) • Reset and supply management – Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds – Ultra-low-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, I2C, SPI supported • Development support – Serial wire debug supported FBGA FBGA LQFP32 (7x7 mm) LQFP48 (7x7 mm) LQFP64 (10x10 mm) LQFP100 (14x14 mm) UFQFxPN32 (5x5 mm) UFQFPN48 (7x7 mm) UFBGA64 UFBGA100 TFBGA64 (7x7 mm) (5x5mm) WLCSP49 (3.294x3.258 mm) • Rich Analog peripherals – 12-bit ADC 1.14 Msps up to 16 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 • Up to 10x peripheral communication interfaces – 4x USART (2 with ISO 7816, IrDA), 1x UART (low power) – Up to 6x SPI 16 Mbits/s – 3x I2C (2 with SMBus/PMBus) • 11x timers: 2x 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, 2x 16-bit basic, and 2x watchdogs (independent/window) • CRC calculation unit, 96-bit unique ID • All packages are ECOPACK2 Table 1. Device summary Reference Part number STM32L071x8 STM32L071xB STM32L071xZ STM32L071V8, STM32L071K8, STM32L071C8 STM32L071VB, STM32L071RB, STM32L071CB, STM32L071KB STM32L071VZ, STM32L071RZ, STM32L071CZ, STM32L071KZ November 2019 This is information on a product in full production. DS10690 Rev 7 1/148 www.st.com Contents Contents STM32L071xx 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.1 Device overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.2 Ultra-low-power device continuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3 Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 3.1 Low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 3.2 Interconnect matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3.3 Arm® Cortex®-M0+ core with MPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.4 Reset and supply management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.4.1 Power supply schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.4.2 Power supply supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.4.3 Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.5 Clock management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.6 Low-power real-time clock and backup registers . . . . . . . . . . . . . . . . . . . 25 3.7 General-purpose inputs/outputs (GPIOs) . . . . . . . . . . . . . . . . . . . . . . . . . 25 3.8 Memories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 3.9 Boot modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 3.10 Direct memory access (DMA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.11 Analog-to-digital converter (ADC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.12 Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.12.1 Internal voltage reference (VREFINT) . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 3.13 Ultra-low-power comparators and reference voltage . . . . . . . . . . . . . . . . 28 3.14.


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