STM32L031F6

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Ultra-low-power Arm Cortex-M0+ MCU with 32-Kbytes of Flash memory, 32 MHz CPU

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Product overview

Description

The access line ultra-low-power STM32L031x4/6 family incorporates the high-performance ARM® Cortex®-M0+ 32-bit RISC core operating at a 32 MHz frequency, high-speed embedded memories (up to 32 Kbytes of Flash program memory, 1 Kbytes of data EEPROM and 8 Kbytes of RAM) plus an extensive range of enhanced I/Os and peripherals.

The STM32L031x4/6 devices provide high power efficiency for a wide range of performance. It is achieved with a large choice of internal and external clock sources, an internal voltage adaptation and several low-power modes.

The STM32L031x4/6 devices offer several analog features, one 12-bit ADC with hardware oversampling, two ultra-low-power comparators, several timers, one low-power timer (LPTIM), three general-purpose 16-bit timers, one RTC and one SysTick which can be used as timebases. They also feature two watchdogs, one watchdog with independent clock and window capability and one window watchdog based on bus clock.

Moreover, the STM32L031x4/6 devices embed standard and advanced communication interfaces: one I2C, one SPI, one USART, and a low-power UART (LPUART).

The STM32L031x4/6 also include a real-time clock and a set of backup registers that remain powered in Standby mode.

The ultra-low-power STM32L031x4/6 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 +125 °C temperature range. A comprehensive set of power-saving modes allows the design of low-power applications.

  • All features

    • Ultra-low-power platform
      • 1.65 V to 3.6 V power supply
      • -40 to 125 °C temperature range
      • 0.25 μA Standby mode (2 wakeup pins)
      • 0.38 μA Stop mode (16 wakeup lines)
      • 0.68 μA Stop mode + RTC + 8 KB RAM retention
      • Down to 76 μA/MHz in Run mode
      • 5 μs wakeup time (from Flash memory)
      • 41 μA 12-bit ADC conversion (at 10ksps)
    • Core: ARM® 32-bit Cortex®-M0+
      • From 32 kHz up to 32 MHz max.
      • 0.95 DMIPS/MHz
      • Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
      • Ultralow power POR/PDR
      • Programmable voltage detector (PVD)
    • Clock sources
      • 1 to 25 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 RC
      • PLL for CPU clock
    • Pre-programmed bootloader
      • USART, SPI supported
    • Development support
      • Serial wire debug supported
    • Up to 38 fast I/Os (31 I/Os 5V tolerant)
    • Memories
      • Up to 32 KB Flash with ECC
      • 8 KB RAM
      • 1 KB of data EEPROM with ECC
      • 20-byte backup register
      • Sector protection against R/W operation
    • Rich Analog peripherals
      • 12-bit ADC 1.14 Msps up to 10 channels (down to 1.65 V)
      • 2x ultra-low-power comparators (window mode and wake up capability, down to 1.8 V)
    • 7-channel DMA controller, supporting ADC, SPI, I2C, USART, Timers
    • 5x peripherals communication interface
    • 1x USART (ISO 7816, IrDA), 1x UART (low power)
    • 1x SPI 16 Mbits/s
    • 1x I2C (SMBus/PMBus)
    • 8x timers: 1x 16-bit with up to 4 channels, 2x 16-bit with up to 2 channels, 1x 16-bit ultra-low-power timer, 1x SysTick, 1x RTC and 2x watchdogs (independent/window)
    • CRC calculation unit, 96-bit unique ID
    • All packages are ECOPACK®2

Circuit Diagram

EDA Symbols, Footprints and 3D Models

STMicroelectronics - STM32L031F6

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Quality and Reliability

Part Number Marketing Status Package SMPS Grade RoHS Compliance Grade Material Declaration**
STM32L031F6P6
Active
TSSOP-20 - Industrial Ecopack2
STM32L031F6P6TR
Active
TSSOP-20 - Industrial Ecopack2
STM32L031F6P7
Active
TSSOP-20 - Industrial Ecopack2
STM32L031F6P7TR
Active
TSSOP-20 - Industrial Ecopack2

STM32L031F6P6

Package:

TSSOP-20

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TSSOP-20

SMPS

-

Grade

Industrial

STM32L031F6P6TR

Package:

TSSOP-20

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TSSOP-20

SMPS

-

Grade

Industrial

STM32L031F6P7

Package:

TSSOP-20

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TSSOP-20

SMPS

-

Grade

Industrial

STM32L031F6P7TR

Package:

TSSOP-20

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TSSOP-20

SMPS

-

Grade

Industrial

(**) 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.

Sample & Buy

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Part Number
Order from distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Budgetary Price (US$)*/Qty
Country of Origin
Timers (typ) (16-bit)
Timers (typ) (32-bit)
Number of Channels (typ)
Number of Channels (typ)
Number of Channels (typ)
D/A Converters (typ) (12-bit)
Comparator
I/Os (High Current)
CAN
CAN FD (typ)
SPI (typ)
I2S (typ)
USART (typ)
UART (typ)
Integrated op-amps
SMPS
min
max
STM32L031F6P6 Available at distributors

Distributor availability of STM32L031F6P6

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
3A991.a.2 NEC Tube TSSOP-20 -40 85

PHILIPPINES

3

-

10

-

-

-

2

15

-

-

1

-

1

1

-

-

STM32L031F6P7 Available at distributors

Distributor availability of STM32L031F6P7

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
3A991.a.2 NEC Tube TSSOP-20 -40 105

PHILIPPINES

3

-

10

-

-

-

2

15

-

-

1

-

1

1

-

-

STM32L031F6P6TR Available at distributors

Distributor availability of STM32L031F6P6TR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
3A991.a.2 NEC Tape and Reel TSSOP-20 -40 85

PHILIPPINES

3

-

10

-

-

-

2

15

-

-

1

-

1

-

-

-

STM32L031F6P7TR Available at distributors

Distributor availability of STM32L031F6P7TR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
3A991.a.2 NEC Tape and Reel TSSOP-20 -40 105

PHILIPPINES

3

-

10

-

-

-

2

15

-

-

1

-

1

-

-

-

STM32L031F6P6 Active

Package:
TSSOP-20
ECCN (US):
3A991.a.2
Budgetary Price (US$)*/Qty:
-

Part Number:

STM32L031F6P6

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

-40

Max:

85

Country of Origin:

PHILIPPINES

Timers (typ) (16-bit):

3

Timers (typ) (32-bit):

-

Number of Channels (typ):

10

Number of Channels (typ):

-

Number of Channels (typ):

-

D/A Converters (typ) (12-bit):

-

Comparator:

2

I/Os (High Current):

15

CAN:

-

CAN FD (typ):

-

SPI (typ):

1

I2S (typ):

-

USART (typ):

1

UART (typ):

1

Integrated op-amps:

-

SMPS:

-

Distributor Name

Distributor reported inventory date:

STM32L031F6P7 Active

Package:
TSSOP-20
ECCN (US):
3A991.a.2
Budgetary Price (US$)*/Qty:
-

Part Number:

STM32L031F6P7

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

-40

Max:

105

Country of Origin:

PHILIPPINES

Timers (typ) (16-bit):

3

Timers (typ) (32-bit):

-

Number of Channels (typ):

10

Number of Channels (typ):

-

Number of Channels (typ):

-

D/A Converters (typ) (12-bit):

-

Comparator:

2

I/Os (High Current):

15

CAN:

-

CAN FD (typ):

-

SPI (typ):

1

I2S (typ):

-

USART (typ):

1

UART (typ):

1

Integrated op-amps:

-

SMPS:

-

Distributor Name

Distributor reported inventory date:

STM32L031F6P6TR Active

Package:
TSSOP-20
ECCN (US):
3A991.a.2
Budgetary Price (US$)*/Qty:
-

Part Number:

STM32L031F6P6TR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Country of Origin:

PHILIPPINES

Timers (typ) (16-bit):

3

Timers (typ) (32-bit):

-

Number of Channels (typ):

10

Number of Channels (typ):

-

Number of Channels (typ):

-

D/A Converters (typ) (12-bit):

-

Comparator:

2

I/Os (High Current):

15

CAN:

-

CAN FD (typ):

-

SPI (typ):

1

I2S (typ):

-

USART (typ):

1

UART (typ):

-

Integrated op-amps:

-

SMPS:

-

Distributor Name

Distributor reported inventory date:

STM32L031F6P7TR Active

Package:
TSSOP-20
ECCN (US):
3A991.a.2
Budgetary Price (US$)*/Qty:
-

Part Number:

STM32L031F6P7TR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

105

Country of Origin:

PHILIPPINES

Timers (typ) (16-bit):

3

Timers (typ) (32-bit):

-

Number of Channels (typ):

10

Number of Channels (typ):

-

Number of Channels (typ):

-

D/A Converters (typ) (12-bit):

-

Comparator:

2

I/Os (High Current):

15

CAN:

-

CAN FD (typ):

-

SPI (typ):

1

I2S (typ):

-

USART (typ):

1

UART (typ):

-

Integrated op-amps:

-

SMPS:

-

Distributor Name

Distributor reported inventory date:

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors