STM32L151VC STMicroelectronics, STM32L151VC Datasheet - Page 2

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STM32L151VC

Manufacturer Part Number
STM32L151VC
Description
Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp
Manufacturer
STMicroelectronics
Datasheet

Specifications of STM32L151VC

Operating Power Supply Range
1.65 V to 3.6 V (without BOR) or 1.8 V to 3.6 V
7 Modes
Sleep, Low-power run (11 μA at 32 kHz) , Low-power sleep (4.4 μA), Stop with RTC, Stop (650 nA), Standby with RTC, Standby (300 nA)
Ultralow Leakage Per I/o
50 nA max
Fast Wakeup Time From Stop
8 μs
Core
ARM 32-bit Cortex™-M3 CPU
Dma
12-channel DMA controller
11 Timers
one 32-bit and six 16-bit general-purpose timers, two 16-bit basic timers, two watchdog timers (independent and window)

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Contents
Contents
1
2
3
2/108
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1
2.2
Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
3.12
3.13
3.14
3.15
3.16
ADC (analog-to-digital converter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
DAC (digital-to-analog converter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Operational amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Touch sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Timers and watchdogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Device overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Ultralow power device continuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.2.1
2.2.2
2.2.3
2.2.4
Low power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
ARM® Cortex™-M3 core with MPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Reset and supply management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.3.1
3.3.2
3.3.3
3.3.4
Clock management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Low power real-time clock and backup registers . . . . . . . . . . . . . . . . . . . 19
GPIOs (general-purpose inputs/outputs) . . . . . . . . . . . . . . . . . . . . . . . . . 19
Memories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
DMA (direct memory access) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
LCD (liquid crystal display) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Ultralow power comparators and reference voltage . . . . . . . . . . . . . . . . . 22
System configuration controller and routing interface . . . . . . . . . . . . . . . 22
3.16.1
Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Shared peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Common system strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Power supply schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Power supply supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Boot modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
General-purpose timers (TIM2, TIM3, TIM4, TIM5, TIM9, TIM10 and
TIM11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Doc ID 022799 Rev 1
STM32L151xC, STM32L152xC

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