Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, USB, 3xOp-amp

The ultra-low-power STM32L151xC/C-A and STM32L152xC/C-A 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/C-A and STM32L152xC/C-A 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/C-A and STM32L152xC/C-A devices contain standard and advanced communication interfaces: up to two I2Cs, three SPIs, two I2S, three USARTs, and an USB. The STM32L151xC/C-A and STM32L152xC/C-A 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/C-A 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/C-A and STM32L152xC/C-A 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.

Key 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
    • 1.25 DMIPS/MHz (Dhrystone 2.1)
    • Memory protection unit
  • Up to 23 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
  • Memories
    • 256 KB Flash with ECC
    • 32 KB RAM
    • 8 KB of true EEPROM with ECC
    • 128-byte backup register
  • LCD driver (except STM32L151xC/C-A devices) up to 8x40 segments, contrast adjustment, blinking mode, step-up converter
  • Rich analog peripherals (down to 1.8V)
    • 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
  • 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)

电路原理图

bd_stm32l1xxxxc_256k.jpg

设计

出版刊物和宣传资料

宣传册
Description Version Size
Get ready for the largest IoT development ecosystem 17.02 741 KB
STM32 GUI solutions - Advanced HMI now achievable on embedded systems 1.0 1 MB
STM32 Nucleo boards 18.0 1 MB
STM32 for makers Releasing your creativity 16.09 1 MB
手册
Description Version Size
STM32™ 32-bit MCU family - Leading supplier of ARM® Cortex®-M microcontrollers 18.0 1 MB
STM32L series - Ultra-low-power 32-bit MCUs 16.4 3 MB
Semiconductor solutions for healthcare applications 1.0 665 KB
白皮书
Description Version Size
STM32 More Than a Core - Circuit Cellar, Tom Cantrell 1.0 355 KB

HW Model & CAD Libraries

HW Model & CAD Libraries
Description Version Size
STM32L1 Boundary Scan Description Language (BSDL) files 1.1 131 KB
STM32L1 CAD Symbol and Footprint files 1.0 573 KB
STM32L1 IBIS models 1.0 45 MB

演示和培训资料

简报
Description Version Size
Fire alarms and smoke detectors - Application guide 1.0 335 KB
STM32 - 32-bit ARM Cortex-M MCUs 3.0 1 MB
STM32 Embedded Software overview 2.3.0 777 KB
STM32 and STM8 Functional Safety Packages 2 1 MB
STM32 and STM8 embedded software solutions 2.0 2 MB
STM8L and STM32 L1 series - Ultra-low-power platform 2.0 789 KB

技术文档

产品规格
Description Version Size
DS10262 DS10262: Ultra-low-power 32b MCU ARM®-based Cortex®-M3, 256KB Flash, 32KB SRAM, 8KB EEPROM, LCD, USB, ADC, DAC 6.0 1 MB
Technical Notes & Articles
Description Version Size
TA0342 TA0342: Accurate power consumption estimation for STM32L1 series of ultra-low-power microcontrollers 2.1 343 KB
TN1163 TN1163: Description of WLCSP for microcontrollers and recommendations for its use 4.0 1 MB
TN0830 TN0830: How to use EWARM 6.2x with projects built with EWARM 6.1 and previous versions 1.2 97 KB
TA0340 TA0340: STM32L Cortex-M3 microcontroller for usage in low-power healthcare applications 1.2 357 KB
TN1204 TN1204: Tape and reel shipping media for STM32 microcontrollers in BGA packages 2.1 745 KB
TN1205 TN1205: Tape and reel shipping media for STM8 and STM32 microcontrollers in FPN packages 3.0 753 KB
TN1206 TN1206: Tape and reel shipping media for STM8 and STM32 microcontrollers in QFP packages 3.0 830 KB
TN1207 TN1207: Tape and reel shipping media for STM8 and STM32 microcontrollers in SO packages 1.0 755 KB
TN1208 TN1208: Tape and reel shipping media for STM8 and STM32 microcontrollers in TSSOP and SSOP packages 1.0 743 KB
参考手册
Description Version Size
RM0038 RM0038: STM32L100xx, STM32L151xx, STM32L152xx and STM32L162xx advanced ARM®-based 32-bit MCUs 14.0 12 MB
编程手册
Description Version Size
PM0056 PM0056: STM32F10xxx/20xxx/21xxx/L1xxxx Cortex-M3 programming manual 5.1 4 MB
勘误手册
Description Version Size
ES0240 ES0240: STM32L15xxD, STM32L15xxC and STM32L15xxC-A ultra-low-power device limitations 4.0 513 KB

工具和软件

开发工具硬件
软件
评估工具
Hardware Development Tools
Software Development Tools
Evaluation Tool Software
MCUs Embedded Software
Product Evaluation Tools
支持和社区


样片和购买

型号 Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STM32L151QCH6 UFBGA 7X7X0.6 132L P 0.5 R 12X12 Tray -40 85 Active 3.636 10000 NEC 3A991A2 PHILIPPINES MORE INFO DISTRIBUTOR AVAILABILITY
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

质量和可靠性

型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STM32L151QCH6 ActiveUFBGA 7X7X0.6 132L P 0.5 R 12X12IndustrialEcopack2 0 0
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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