STM32L151VCH6

Ultra-low-power 32-bit MCU based on ARM® Cortex®-M3, featuring 256KB Flash, 32KB SRAM, 8KB EEPROM, with LCD, USB, ADC, and DAC support.

Key features

• Ultra-low-power platform
• 1.65 V to 3.6 V power supply
• -40°C to 105°C temperature range
• 0.29 μA Standby mode (3 wakeup pins)
• 1.15 μA Standby mode + RTC
• 0.44 μA Stop mode (16 wakeup lines)
• 1.4 μA Stop mode + RTC
• 8.6 μA Low-power run mode
• 10 nA ultra-low I/O leakage
• 8 μs wakeup time
• Core: ARM Cortex-M3 32-bit CPU
• From 32 kHz up to 32 MHz max
• 1.25 DMIPS/MHz (Dhrystone 2.1)
• Memory protection unit
• Reset and supply management
• Low-power, ultrasafe BOR (brownout reset) with 5 selectable thresholds
• Ultra-low-power POR/PDR
• Programmable voltage detector (PVD)
• Clock sources
• 1 to 24 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 PLL for CPU clock and USB (48 MHz)
• Pre-programmed bootloader
• USB and USART supported
• Development support
• Serial wire debug supported
• JTAG and trace supported
• Up to 83 fast I/Os (70 I/Os 5V tolerant), all mappable on 16 external interrupt vectors
• Memories
• 256 Kbytes of Flash memory with ECC
• 32 Kbytes of RAM
• 8 Kbytes of true EEPROM with ECC
• 128-byte backup register
• LCD Driver (except STM32L151xC devices) up to 8x40 segments, contrast adjustment, blinking mode, step-up converter
• Rich analog peripherals (down to 1.8 V)
• 2x operational amplifiers
• 12-bit ADC 1Msps up to 25 channels
• 12-bit DAC 2 channels with output buffers
• 2x ultra-low-power-comparators (window mode and wake up capability)
• DMA controller 12x channels
• 9x peripheral communication interfaces
• 1x USB 2.0 (internal 48 MHz PLL)
• 3x USARTs
• Up to 8x SPIs (2x I2S, 3x 16 Mbit/s)
• 2x I2Cs (SMBus/PMBus)
• 11x timers: 1x 32-bit, 6x 16-bit with up to 4 IC/OC/PWM channels, 2x 16-bit basic timers, 2x watchdog timers (independent and window)
• Up to 23 capacitive sensing channels
• CRC calculation unit, 96-bit unique ID