Specifications

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Select all	Attribute	Value
	Brand	STMicroelectronics
	Series	STM32L051R6
	Product Type	Microcontroller
	Package Type	LQFP
	Mount Type	Surface
	Pin Count	64
	Device Core	ARM Cortex M0+
	Data Bus Width	32bit
	Program Memory Size	32kB
	Maximum Clock Frequency	32MHz
	RAM Size	8kB
	Maximum Supply Voltage	3.6V
	Minimum Operating Temperature	-40°C
	Maximum Operating Temperature	85°C
	Maximum Power Dissipation Pd	444mW
	Number of Programmable I/Os	51
	Width	10 mm
	Standards/Approvals	No
	Analogue Comparators	2
	Height	1.45mm
	Length	10mm
	Minimum Supply Voltage	1.65V
	Automotive Standard	No
	Number of Timers	1
	ADCs	16 x 12 Bit
	Program Memory Type	FLASH
	Instruction Set Architecture	RISC

	Select all
	Brand STMicroelectronics
	Series STM32L051R6
	Product Type Microcontroller
	Package Type LQFP
	Mount Type Surface
	Pin Count 64
	Device Core ARM Cortex M0+
	Data Bus Width 32bit
	Program Memory Size 32kB
	Maximum Clock Frequency 32MHz
	RAM Size 8kB
	Maximum Supply Voltage 3.6V
	Minimum Operating Temperature -40°C
	Maximum Operating Temperature 85°C
	Maximum Power Dissipation Pd 444mW
	Number of Programmable I/Os 51
	Width 10 mm
	Standards/Approvals No
	Analogue Comparators 2
	Height 1.45mm
	Length 10mm
	Minimum Supply Voltage 1.65V
	Automotive Standard No
	Number of Timers 1
	ADCs 16 x 12 Bit
	Program Memory Type FLASH
	Instruction Set Architecture RISC

Datasheet STM32L051R6T6

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 KB 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

Memories

Up to 64 KB Flash memory with ECC

8KB RAM

2 KB 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)

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

Rich Analogue 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

7x peripheral communication interfaces

2x USART (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

Units	Per unit
40 - 75	HK$26.26
80 +	HK$25.70

STMicroelectronics STM32L051R6T6, 32 bit ARM Cortex M0+, STM32L051R6 Microcontroller, 32 MHz, 32kB FLASH, 64-Pin LQFP

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