STM32L151VCH6 STMicroelectronics 32bit MCU

STM32L151VCH6 Overview

The ultra-low-power STM32L151xC and STM32L152xC devices incorporate the connectivity power of the universal serial bus (USB) with the high-performance ARM® Cortex®-M3 32-bit RISC core operating at a frequency of 32 MHz (33.3 DMIPS), a memory protection unit (MPU), high-speed embedded memories (Flash memory up to 256 Kbytes and RAM up to 32 Kbytes) and an extensive range of enhanced I/Os and peripherals connected to two APB buses.

The STM32L151xC and STM32L152xC devices offer two operational amplifiers, one 12-bit ADC, two DACs, two ultra-low-power comparators, one general-purpose 32-bit timer, six general-purpose 16-bit timers and two basic timers, which can be used as time bases.
Moreover, the STM32L151xC and STM32L152xC devices contain standard and advanced communication interfaces: up to two I2Cs, three SPIs, two I2S, three USARTs and an USB. The STM32L151xC and STM32L152xC devices offer up to 23 capacitive sensing channels to simply add a touch sensing functionality to any application.
They also include a real-time clock and a set of backup registers that remain powered in Standby mode.
Finally, the integrated LCD controller (except STM32L151xC devices) has a built-in LCD voltage generator that allows to drive up to 8 multiplexed LCDs with the contrast independent of the supply voltage.
The ultra-low-power STM32L151xC and STM32L152xC 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 +85 °C and -40 to +105 °C temperature ranges. A comprehensive set of power-saving modes allows the design of low-power applications.

ECAD Model

Symbol

Footprint

Features

1.65 V to 3.6 V power supply
-40 °C to 105 °C temperature range
0.29μA 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
185 μA/MHz 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