STM32L051K8U6 STM32 32-bit Arm Cortex MCUs by STMicroelectronics

Ultra-low-power Arm Cortex-M0+ MCU with 64 Kbytes of Flash memory, 32 MHz CPU

Status: Active
Series: STM32L051K8
RoHS: Compliant
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The access line ultra-low-power STM32L051x6/8 microcontrollers incorporate the high-performance Arm Cortex-M0+ 32-bit RISC core operating at a 32 MHz frequency, a memory protection unit (MPU), high-speed embedded memories (64 Kbytes of Flash program memory, 2 Kbytes of data EEPROM and 8 Kbytes of RAM) plus an extensive range of enhanced I/Os and peripherals. The STM32L051x6/8 devices provide high power efficiency for a wide range of performance. It is achieved with a large choice of internal and external clock sources, an internal voltage adaptation and several low-power modes. The STM32L051x6/8 devices offer several analog features, one 12-bit ADC with hardware oversampling, two ultra-low-power comparators, several timers, one low-power timer (LPTIM), three general-purpose 16-bit timers and one basic timer, one RTC and one SysTick which can be used as timebases. They also feature two watchdogs, one watchdog with independent clock and window capability and one window watchdog based on bus clock. Moreover, the STM32L051x6/8 devices embed standard and advanced communication interfaces: up to two I2C, two SPIs, one I2S, two USARTs, a low-power UART (LPUART), . The STM32L051x6/8 also include a real-time clock and a set of backup registers that remain powered in Standby mode. The ultra-low-power STM32L051x6/8 devices operate from a 1.8 to 3.6 V power supply (down to 1.65 V at power down) with BOR and from a 1.65 to 3.6 V power supply without BOR option. They are available in the -40 to +125 °C temperature range. A comprehensive set of power-saving modes allows the design of low-power applications.

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Prices starting from US$0.82

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Features

Ultra-low-power platform 1.65 V to 3.6 V power supply -40 to 125 °C temperature range 0.27 µA Standby mode (2 wakeup pins) 0.4 µA Stop mode (16 wakeup lines) 0.8 µA Stop mode + RTC + 8-Kbyte RAM retention 88 µA/MHz in Run mode 3.5 µs wakeup time (from RAM) 5 µs wakeup time (from Flash memory)
1.65 V to 3.6 V power supply
-40 to 125 °C temperature range
0.27 µA Standby mode (2 wakeup pins)
0.4 µA Stop mode (16 wakeup lines)
0.8 µA Stop mode + RTC + 8-Kbyte RAM retention
88 µA/MHz in Run mode
3.5 µs wakeup time (from RAM)
5 µs wakeup time (from Flash memory)
Core: Arm® 32-bit Cortex®-M0+ with MPU From 32 kHz up to 32 MHz max. 0.95 DMIPS/MHz
From 32 kHz up to 32 MHz max.
0.95 DMIPS/MHz
Memories Up to 64-Kbyte Flash memory with ECC 8-Kbyte RAM 2 Kbytes of data EEPROM with ECC 20-byte backup register Sector protection against R/W operation
Up to 64-Kbyte Flash memory with ECC
8-Kbyte RAM
2 Kbytes of data EEPROM with ECC
20-byte backup register
Sector protection against R/W operation
Up to 51 fast I/Os (45 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)
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
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
USART, SPI supported
Development support Serial wire debug supported
Serial wire debug supported
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)
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
7x peripheral communication interfaces 2x USART (ISO 7816, IrDA), 1x UART (low power) Up to 4x SPI 16 Mbits/s 2x I2C (SMBus/PMBus)
2x USART (ISO 7816, IrDA), 1x UART (low power)
Up to 4x SPI 16 Mbits/s
2x I2C (SMBus/PMBus)
9x 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, 1x 16-bit basic, and 2x watchdogs (independent/window)
CRC calculation unit, 96-bit unique ID
All packages are ECOPACK2

Resources

System View Description
STM32L0 System View Description


Alternative Descriptions

MCU, 32BIT, CORTEX-M0+, 32MHZ, UFQFPN-32 | element14
STM32L Series 64 KB Flash 8 KB SRAM 32 MHz 32-Bit Microcontroller - UFQFPN-32 | Future Electronics
MCU 32-Bit Ultra Low Power STM32L ARM Cortex M0+ RISC 64kB Flash 32-Pin UFQFPN Tray | Avnet America
Mcu, 32Bit, 32Mhz, Ufqfpn-32 | Newark Electronics
STM32L051K8U6, STM32 Microcontrollers | RS


Frequently Asked Questions

Where can I find additional details, specifications and documents for a STM32L051K8U6?

Additional datasheets, footprints and schematics for STM32L051K8U6 are listed on our Part Details page. You can also find images and similar parts to STM32L051K8U6 on this page.

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What category does STM32L051K8U6 fall under?

The STM32L051K8U6 is listed under Microcontrollers & Microprocessors > STM32 32-bit Arm Cortex MCUs > STM32 Ultra Low Power MCUs > STM32L0 Series > STM32L0x1.

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You can view similar parts to STM32L051K8U6 when available in the STM32L0x1 range under the specifications section at the bottom of the details page.

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Is the STM32L051K8U6 RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.

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