STMicroelectronics Electronic Components Datasheet

STM32L151QD Datasheet

Ultra-low-power 32-bit MCU

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STM32L151xD STM32L152xD

Ultra-low-power 32-bit MCU Arm® Cortex®-M3, 384KB Flash, 48KB

SRAM, 12KB EEPROM, LCD, USB, ADC, DAC, memory I/F

Datasheet - production data

Features

• Ultra-low-power platform

– 1.65 V to 3.6 V power supply

– -40°C to 105°C temperature range

– 305 nA Standby mode (3 wakeup pins)

– 1.15 µA Standby mode + RTC

– 0.475 µA Stop mode (16 wakeup lines)

– 1.35 µA Stop mode + RTC

– 11 µA Low-power run mode

– 230 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

– 33.3 DMIPS peak (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

– 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

• Serial wire debug, JTAG and trace

• Up to 116 fast I/Os (102 I/Os 5V tolerant), all

mappable on 16 external interrupt vectors

LQFP144 (20 × 20 mm)

LQFP100 (14 × 14 mm)

LQFP64 (10 × 10 mm)

UFBGA132

(7 × 7 mm)

WLCSP64

(0.4 mm pitch)

• Memories

– 384 Kbytes of Flash memory with ECC

(with 2 banks of 192 Kbytes enabling Rww

capability)

– 48 Kbytes of RAM

– 12 Kbytes of true EEPROM with ECC

– 128-byte backup register

– Memory interface controller supporting

SRAM, PSRAM and NOR Flash

• LCD driver (except STM32L151xD devices) up

to 8x40 segments, contrast adjustment,

blinking mode, step-up converter

• Rich analog peripherals (down to 1.8V)

– 3x 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 wakeup capability)

• DMA controller 12x channels

• 12x 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)

– 1x SDIO interface

• 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)

Table 1. Device summary

Reference

Part number

STM32L151xD

STM32L152xD

STM32L151QD, STM32L151RD,

STM32L151VD, STM32L151ZD

STM32L152QD, STM32L152RD,

STM32L152VD, STM32L152ZD

October 2017

This is information on a product in full production.

DocID022027 Rev 12

1/155

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STMicroelectronics Electronic Components Datasheet

STM32L151QD Datasheet

Ultra-low-power 32-bit MCU

No Preview Available !

Contents

STM32L151xD STM32L152xD

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.1 Device overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.2 Ultra-low-power device continuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.2.1 Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.2.2 Shared peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.2.3 Common system strategy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.2.4 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3 Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.1 Low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2 Arm® Cortex®-M3 core with MPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.3 Reset and supply management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.3.1 Power supply schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.3.2 Power supply supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.3.3 Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.3.4 Boot modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.4 Clock management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.5 Low-power real-time clock and backup registers . . . . . . . . . . . . . . . . . . . 25

3.6 GPIOs (general-purpose inputs/outputs) . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.7 Memories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.8 FSMC (flexible static memory controller) . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.9 DMA (direct memory access) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.10 LCD (liquid crystal display) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.11 ADC (analog-to-digital converter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.11.1 Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.11.2 Internal voltage reference (VREFINT) . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3.12 DAC (digital-to-analog converter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3.13 Operational amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3.14 Ultra-low-power comparators and reference voltage . . . . . . . . . . . . . . . . 29

3.15 System configuration controller and routing interface . . . . . . . . . . . . . . . 29

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STM32L151QD Datasheet

Ultra-low-power 32-bit MCU

STM32L151QD Datasheet

Ultra-low-power 32-bit MCU

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