STM32L151QE

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产品概述

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The ultra-low-power STM32L151xE and STM32L152xE 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 512 Kbytes and RAM up to 80 Kbytes), and an extensive range of enhanced I/Os and peripherals connected to two APB buses.

The STM32L151xE and STM32L152xE 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 STM32L151xE and STM32L152xE devices contain standard and advanced communication interfaces: up to two I2Cs, three SPIs, two I2S, three USARTs, two UARTs and an USB. The STM32L151xE and STM32L152xE devices offer up to 34 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 STM32L151xE 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 STM32L151xE and STM32L152xE 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.

所有功能
Includes ST state-of-the-art patented technology

Ultra-low-power platform
1.65 V to 3.6 V power supply

-40 °C to 105 °C temperature range

290 nA Standby mode (3 wakeup pins)

1.11 µA Standby mode + RTC

560 nA Stop mode (16 wakeup lines)

1.4 µA Stop mode + RTC

11 µA Low-power run mode down to 4.6 µA in Low-power sleep mode

195 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

Up to 34 capacitive sensing channels

CRC calculation unit, 96-bit unique ID

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

Internal 16 MHz oscillator factory trimmed RC(+/-1%) with PLL option

Internal low-power 37 kHz oscillator

Internal multispeed low-power 65 kHz to 4.2 MHz oscillator

PLL for CPU clock and USB (48 MHz)

Pre-programmed bootloader
USB and USART supported

Up to 116 fast I/Os (102 I/Os 5V tolerant), all mappable on 16 external interrupt vectors

Memories
512 Kbytes of Flash memory with ECC (with 2 banks of 256 Kbytes enabling RWW capability)

80 Kbytes of RAM

16 Kbytes of true EEPROM with ECC

128-byte backup register

LCD driver (except STM32L151xE 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 1 Msps up to 40 channels

12-bit DAC 2 ch with output buffers

2x ultra-low-power comparators(window mode and wake up capability)

DMA controller 12x channels

11x peripheral communication interfaces
1x USB 2.0 (internal 48 MHz PLL)

5x 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)

Development support: serial wire debug, JTAG and trace
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