STM32L051R8 Series
Ultra-low-power Arm Cortex-M0+ MCU with 64 Kbytes of Flash memory, 32 MHz CPU
Manufacturer: STMicroelectronics
Catalog
Ultra-low-power Arm Cortex-M0+ MCU with 64 Kbytes of Flash memory, 32 MHz CPU
| Part | Oscillator Type | Core Processor | Operating Temperature [Max] | Operating Temperature [Min] | RAM Size | Data Converters [custom] | Data Converters [custom] | Number of I/O | EEPROM Size | Program Memory Size | Mounting Type | Core Size | Voltage - Supply (Vcc/Vdd) [Max] | Voltage - Supply (Vcc/Vdd) [Min] | Peripherals | Program Memory Type | Connectivity | Supplier Device Package | Speed | Package / Case | Data Converters | Data Converters |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
STMicroelectronics | Internal | ARM® Cortex®-M0+ | 85 °C | -40 °C | 8 K | 16 | 12 b | 51 | 2K x 8 | 32 KB | Surface Mount | 32-Bit Single-Core | 3.6 V | 1.65 V | Brown-out Detect/Reset DMA I2S POR PWM WDT | FLASH | I2C IrDA SPI UART/USART | 64-TFBGA (5x5) | 32 MHz | |||
STMicroelectronics | Internal | ARM® Cortex®-M0+ | 85 °C | -40 °C | 8 K | 16 | 12 b | 51 | 2K x 8 | 64 KB | Surface Mount | 32-Bit Single-Core | 3.6 V | 1.65 V | Brown-out Detect/Reset DMA I2S POR PWM WDT | FLASH | I2C IrDA SPI UART/USART | 64-TFBGA (5x5) | 32 MHz | |||
STMicroelectronics | Internal | ARM® Cortex®-M0+ | 105 °C | -40 °C | 8 K | 27 | 2K x 8 | 64 KB | Surface Mount | 32-Bit Single-Core | 3.6 V | 1.65 V | Brown-out Detect/Reset DMA POR PWM WDT | FLASH | I2C IrDA SPI UART/USART | 32-UFQFPN (5x5) | 32 MHz | 32-UFQFN Exposed Pad | ||||
STMicroelectronics | Internal | ARM® Cortex®-M0+ | 105 °C | -40 °C | 8 K | 27 | 2K x 8 | 64 KB | Surface Mount | 32-Bit Single-Core | 3.6 V | 1.65 V | Brown-out Detect/Reset DMA POR PWM WDT | FLASH | I2C IrDA SPI UART/USART | 32-UFQFPN (5x5) | 32 MHz | 32-UFQFN Exposed Pad | ||||
STMicroelectronics | Internal | ARM® Cortex®-M0+ | 85 °C | -40 °C | 8 K | 50 I/O | 2K x 8 | 64 KB | Surface Mount | 32-Bit Single-Core | 3.6 V | 1.65 V | Brown-out Detect/Reset DMA I2S POR PWM WDT | FLASH | I2C IrDA SPI UART/USART | 64-TFBGA (5x5) | 32 MHz | 12 b 15 | A/D | |||
STMicroelectronics | Internal | ARM® Cortex®-M0+ | 85 °C | -40 °C | 8 K | 37 | 2K x 8 | 64 KB | Surface Mount | 32-Bit Single-Core | 3.6 V | 1.65 V | Brown-out Detect/Reset DMA I2S POR PWM WDT | FLASH | I2C IrDA SPI UART/USART | 48-LQFP (7x7) | 32 MHz | 48-LQFP | ||||
STMicroelectronics | Internal | ARM® Cortex®-M0+ | 105 °C | -40 °C | 8 K | 16 | 12 b | 51 | 2K x 8 | 64 KB | Surface Mount | 32-Bit Single-Core | 3.6 V | 1.65 V | Brown-out Detect/Reset DMA I2S POR PWM WDT | FLASH | I2C IrDA SPI UART/USART | 64-LQFP (10x10) | 32 MHz | 64-LQFP | ||
STMicroelectronics | Internal | ARM® Cortex®-M0+ | 85 °C | -40 °C | 8 K | 27 | 2K x 8 | 32 KB | Surface Mount | 32-Bit Single-Core | 3.6 V | 1.65 V | Brown-out Detect/Reset DMA POR PWM WDT | FLASH | I2C IrDA SPI UART/USART | 32-UFQFPN (5x5) | 32 MHz | 32-UFQFN Exposed Pad | ||||
STMicroelectronics | Internal | ARM® Cortex®-M0+ | 105 °C | -40 °C | 8 K | 16 | 12 b | 51 | 2K x 8 | 64 KB | Surface Mount | 32-Bit Single-Core | 3.6 V | 1.65 V | Brown-out Detect/Reset DMA I2S POR PWM WDT | FLASH | I2C IrDA SPI UART/USART | 64-TFBGA (5x5) | 32 MHz |
Key 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)
• Core: Arm32-bit Cortex-M0+ with MPU
- 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
• 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
Description
AI
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.