Ultra-low-power ARM Cortex-M3 MCU with 384 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp

The ultra-low-power STM32L151xD and STM32L152xD 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 384 Kbytes and RAM up to 48 Kbytes), a flexible static memory controller (FSMC) interface (for devices with packages of 100 pins and more) and an extensive range of enhanced I/Os and peripherals connected to two APB buses.

The STM32L151xD and STM32L152xD devices offer three 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 STM32L151xD and STM32L152xD devices contain standard and advanced communication interfaces: up to two I2Cs, three SPIs, two I2S, one SDIO, three USARTs, two UARTs, and an USB. The STM32L151xD and STM32L152xD 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 STM32L151xD 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 STM32L151xD and STM32L152xD 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
    • 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
  • Memories
    • 384 KB Flash with ECC (with 2 banks of 192 KB enabling Rww capability)
    • 48 KB RAM
    • 12 KB 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)

Circuit Diagram

bd_stm32l1xxxxd_384k.jpg

Design

Publications and Collaterals

Flyers
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
Brochures
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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
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STM32 More Than a Core - Circuit Cellar, Tom Cantrell 1.0 355 KB

HW Model & CAD Libraries

HW Model & CAD Libraries
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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

Presentations & Training Material

Presentations
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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

Technical Documentation

Product Specifications
Description Version Size
DS8576 DS8576: Ultra-low-power 32-bit MCU ARM® Cortex®-M3, 384KB Flash, 48KB SRAM, 12KB EEPROM, LCD, USB, ADC, DAC, memory I/F 11.0 2 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
TN1201 TN1201: Migrating from STM32L15/6xxD to STM32L15/6xVD-X 1.0 227 KB
TN1178 TN1178: Migrating from STM32L15/6xxD to STM32L15/6xxE 1.1 224 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
Reference Manuals
Description Version Size
RM0038 RM0038: STM32L100xx, STM32L151xx, STM32L152xx and STM32L162xx advanced ARM®-based 32-bit MCUs 14.0 12 MB
Programming Manuals
Description Version Size
PM0056 PM0056: STM32F10xxx/20xxx/21xxx/L1xxxx Cortex-M3 programming manual 5.1 4 MB
Errata Sheets
Description Version Size
ES0240 ES0240: STM32L15xxD, STM32L15xxC and STM32L15xxC-A ultra-low-power device limitations 4.0 513 KB

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Sample & Buy

Part Number 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
STM32L152QDH6 UFBGA 7X7X0.6 132L P 0.5 R 12X12 Tray -40 85 Active 4.176 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

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STM32L152QDH6 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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