Product overview
Description
The access line ultra-low-power STM32L071xx microcontrollers incorporate the high-performance Arm Cortex-M0+ 32-bit RISC core operating at a 32 MHz frequency, a memory protection unit (MPU), high-speed embedded memories (up to 192 Kbytes of Flash program memory, 6 Kbytes of data EEPROM and 20 Kbytes of RAM) plus an extensive range of enhanced I/Os and peripherals.
The STM32L071xx 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 STM32L071xx devices offer several analog features, one 12-bit ADC with hardware oversampling, two ultra-low-power comparators, several timers, one low-power timer (LPTIM), four general-purpose 16-bit timers and two basic timer, 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 STM32L071xx devices embed standard and advanced communication interfaces: up to three I2Cs, two SPIs, one I2S, four USARTs, a low-power UART (LPUART), .
The STM32L071xx also include a real-time clock and a set of backup registers that remain powered in Standby mode.
The ultra-low-power STM32L071xx 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
- 0.29 µA Standby mode (3 wakeup pins)
- 0.43 µA Stop mode (16 wakeup lines)
- 0.86 µA Stop mode + RTC + 20-Kbyte RAM retention
- Down to 93 µA/MHz in Run mode
- 5 µs wakeup time (from Flash memory)
- 41 µA 12-bit ADC conversion at 10 ksps
- Core: Arm® 32-bit Cortex®-M0+ with MPU
- From 32 kHz up to 32 MHz max.
- 0.95 DMIPS/MHz
- Memories
- Up to 192-Kbyte Flash memory with ECC(2 banks with read-while-write capability)
- 20 -Kbyte RAM
- 6 Kbytes of data EEPROM with ECC
- 20-byte backup register
- Sector protection against R/W operation
- Up to 84 fast I/Os (78 I/Os 5V tolerant)
- Reset and supply management
- Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
- Ultra-low-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, I2C, SPI supported
- Development support
- Serial wire debug supported
- Rich Analog peripherals
- 12-bit ADC 1.14 Msps up to 16 channels (down to 1.65 V)
- 2x ultra-low-power comparators (window mode and wake up capability, down to 1.65 V)
- 7-channel DMA controller, supporting ADC, SPI, I2C, USART, Timers
- Up to 10x peripheral communication interfaces
- 4x USART (2 with ISO 7816, IrDA), 1x UART (low power)
- Up to 6x SPI 16 Mbits/s
- 3x I2C (2 with SMBus/PMBus)
- 11x timers: 2x 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, 2x 16-bit basic, and 2x watchdogs (independent/window)
- CRC calculation unit, 96-bit unique ID
- All packages are ECOPACK2
- Ultra-low-power platform
Circuit Diagram
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All resources
| Resource title | Version | Latest update |
|---|
Product Specifications (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 7.0 | 15 Nov 2019 | 15 Nov 2019 |
Application Notes (5 of 53)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.0 | 25 Jun 2015 | 25 Jun 2015 | ||
| 4.0 | 08 Jul 2020 | 08 Jul 2020 | ||
| 4.0 | 06 Jul 2022 | 06 Jul 2022 | ||
| 1.1 | 16 Jan 2024 | 16 Jan 2024 | ||
| 3.0 | 16 Jul 2019 | 16 Jul 2019 | ||
| 2.0 | 28 Feb 2020 | 28 Feb 2020 | ||
| 8.0 | 27 Feb 2025 | 27 Feb 2025 | ||
| 5.0 | 27 Feb 2025 | 27 Feb 2025 | ||
| 8.0 | 27 Feb 2025 | 27 Feb 2025 | ||
| 4.0 | 04 Oct 2024 | 04 Oct 2024 | ||
| 23.0 | 27 Feb 2025 | 27 Feb 2025 | ||
| 7.0 | 09 Dec 2024 | 09 Dec 2024 | ||
| 2.1 | 11 Jul 2017 | 11 Jul 2017 | ||
| 3.0 | 17 Aug 2022 | 17 Aug 2022 | ||
| 8.0 | 27 Feb 2025 | 27 Feb 2025 | ||
| 1.0 | 08 Oct 2015 | 08 Oct 2015 | ||
| 10.0 | 27 Feb 2025 | 27 Feb 2025 | ||
| 5.0 | 27 Feb 2025 | 27 Feb 2025 | ||
| 10.0 | 27 Feb 2025 | 27 Feb 2025 | ||
| 10.0 | 27 Feb 2025 | 27 Feb 2025 | ||
| 9.0 | 22 Oct 2024 | 22 Oct 2024 | ||
| 5.0 | 25 Jan 2024 | 25 Jan 2024 | ||
| 10.0 | 29 Oct 2024 | 29 Oct 2024 | ||
| 8.0 | 27 Feb 2025 | 27 Feb 2025 | ||
| 1.0 | 25 Sep 2023 | 25 Sep 2023 | ||
| 7.0 | 27 Feb 2025 | 27 Feb 2025 | ||
| 14.0 | 18 Feb 2025 | 18 Feb 2025 | ||
| 1.0 | 11 Dec 2017 | 11 Dec 2017 | ||
| 2.0 | 17 Jul 2019 | 17 Jul 2019 | ||
| 9.0 | 14 Mar 2024 | 14 Mar 2024 | ||
| 7.0 | 27 Jun 2023 | 27 Jun 2023 | ||
| 10.0 | 27 Feb 2025 | 27 Feb 2025 | ||
| 12.0 | 27 Feb 2025 | 27 Feb 2025 | ||
| 11.0 | 27 Feb 2025 | 27 Feb 2025 | ||
| 13.0 | 27 Feb 2025 | 27 Feb 2025 | ||
| 10.0 | 27 Feb 2025 | 27 Feb 2025 | ||
| 1.0 | 12 Feb 2015 | 12 Feb 2015 | ||
| 5.0 | 21 Sep 2018 | 21 Sep 2018 | ||
| 1.0 | 30 Apr 2015 | 30 Apr 2015 | ||
| 2.0 | 22 Mar 2024 | 22 Mar 2024 | ||
| 3.0 | 03 Mar 2025 | 03 Mar 2025 | ||
| 15.0 | 06 Feb 2025 | 06 Feb 2025 | ||
| 3.0 | 29 Mar 2022 | 29 Mar 2022 | ||
| 3.0 | 28 Jan 2021 | 28 Jan 2021 | ||
| 65.0 | 17 Feb 2025 | 17 Feb 2025 | ||
| 6.0 | 14 Nov 2018 | 14 Nov 2018 | ||
| 1.2 | 03 Jul 2017 | 03 Jul 2017 | ||
| 1.2 | 03 Jul 2017 | 03 Jul 2017 | ||
| 8.0 | 07 Nov 2024 | 07 Nov 2024 | ||
| 19.0 | 05 Feb 2025 | 05 Feb 2025 | ||
| 17.0 | 17 Feb 2025 | 17 Feb 2025 | ||
| 2.0 | 13 Aug 2019 | 13 Aug 2019 | ||
| 1.1 | 11 Jul 2017 | 11 Jul 2017 |
Technical Notes & Articles (5 of 7)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 4.0 | 11 Jul 2017 | 11 Jul 2017 | ||
| 5.0 | 17 Jul 2024 | 17 Jul 2024 | ||
| 2.1 | 11 Jul 2017 | 11 Jul 2017 | ||
| 3.0 | 11 Jul 2017 | 11 Jul 2017 | ||
| 3.0 | 11 Jul 2017 | 11 Jul 2017 | ||
| 1.0 | 11 Jul 2017 | 11 Jul 2017 | ||
| 1.0 | 11 Jul 2017 | 11 Jul 2017 |
Reference Manuals (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 10.0 | 04 Feb 2022 | 04 Feb 2022 |
Programming Manuals (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 9.0 | 20 Jun 2024 | 20 Jun 2024 |
Errata Sheets (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 8.0 | 12 Aug 2024 | 12 Aug 2024 |
Application Notes for related Tools & Software (5 of 32)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 4.0 | 23 Nov 2016 | 23 Nov 2016 | ||
| 2.0 | 15 Mar 2024 | 15 Mar 2024 | ||
| 2.0 | 27 Sep 2017 | 27 Sep 2017 | ||
| 2.0 | 23 Feb 2018 | 23 Feb 2018 | ||
| 1.0 | 28 Feb 2025 | 28 Feb 2025 | ||
| 4.0 | 10 Feb 2022 | 10 Feb 2022 | ||
| 2.0 | 14 Dec 2020 | 14 Dec 2020 | ||
| 3.0 | 24 Jul 2020 | 24 Jul 2020 | ||
| 1.0 | 29 Oct 2019 | 29 Oct 2019 | ||
| 10.0 | 22 Aug 2023 | 22 Aug 2023 | ||
| 5.0 | 05 Oct 2021 | 05 Oct 2021 | ||
| 2.0 | 30 Aug 2016 | 30 Aug 2016 | ||
| 2.0 | 28 Apr 2015 | 28 Apr 2015 | ||
| 2.0 | 27 Feb 2025 | 27 Feb 2025 | ||
| 2.0 | 03 May 2023 | 03 May 2023 | ||
| 1.0 | 16 Oct 2014 | 16 Oct 2014 | ||
| 1.0 | 28 Nov 2024 | 28 Nov 2024 | ||
| 9.0 | 22 Oct 2024 | 22 Oct 2024 | ||
| 5.0 | 25 Jan 2024 | 25 Jan 2024 | ||
| 18.0 | 11 Mar 2025 | 11 Mar 2025 | ||
| 2.0 | 28 Feb 2025 | 28 Feb 2025 | ||
| 8.0 | 20 Dec 2021 | 20 Dec 2021 | ||
| 7.0 | 27 Sep 2021 | 27 Sep 2021 | ||
| 1.0 | 14 Jan 2020 | 14 Jan 2020 | ||
| 3.0 | 22 May 2019 | 22 May 2019 | ||
| 4.0 | 09 Mar 2023 | 09 Mar 2023 | ||
| 3.0 | 28 Feb 2023 | 28 Feb 2023 | ||
| 6.0 | 14 Nov 2018 | 14 Nov 2018 | ||
| 1.0 | 30 Nov 2021 | 30 Nov 2021 | ||
| 1.1 | 11 Jan 2023 | 11 Jan 2023 | ||
| 1.0 | 25 Jun 2019 | 25 Jun 2019 | ||
| 1.0 | 24 Mar 2016 | 24 Mar 2016 |
Presentations (5 of 7)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.0 | 13 Jan 2016 | 13 Jan 2016 | ||
| 1.0 | 16 Sep 2024 | 16 Sep 2024 | ||
| 1.0 | 19 Feb 2025 | 19 Feb 2025 | ||
| 1.0 | 20 Jun 2023 | 20 Jun 2023 | ||
| 1.0 | 21 Mar 2024 | 21 Mar 2024 | ||
| 1.1 | 02 Dec 2024 | 02 Dec 2024 | ||
| 1.0 | 19 Mar 2024 | 19 Mar 2024 |
Flyers (3)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 20.0 | 21 Dec 2020 | 21 Dec 2020 | ||
| 1.0 | 09 Jul 2024 | 09 Jul 2024 | ||
| 1.0 | 22 Aug 2023 | 22 Aug 2023 |
Brochures (2)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.0 | 31 Aug 2022 | 31 Aug 2022 | ||
| 20.05 | 17 Jun 2020 | 17 Jun 2020 |
Magazine Articles (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.1 | 28 Sep 2021 | 28 Sep 2021 |
Security Bulletin (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.0 | 28 Jan 2025 | 28 Jan 2025 |
EDA Symbols, Footprints and 3D Models
STMicroelectronics - STM32L071CB
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Please select one model supplier :
Symbols
Footprints
3D models
All resources
| Resource title | Version | Latest update |
|---|
System View Description (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 1.4 | 14 Dec 2023 | 14 Dec 2023 |
IBIS models (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 3.0 | 13 Jan 2016 | 13 Jan 2016 |
Quality and Reliability
| Part Number | Marketing Status | Package | SMPS | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|---|
| STM32L071CBT3 | Active | LQFP 48 7x7x1.4 mm | - | Industrial | Ecopack2 | |
| STM32L071CBT3TR | Active | LQFP 48 7x7x1.4 mm | - | Industrial | Ecopack2 | |
| STM32L071CBT6 | Active | LQFP 48 7x7x1.4 mm | - | Industrial | Ecopack2 | |
| STM32L071CBT6TR | Active | LQFP 48 7x7x1.4 mm | - | Industrial | Ecopack2 | |
| STM32L071CBT7 | Active | LQFP 48 7x7x1.4 mm | - | Industrial | Ecopack2 | |
| STM32L071CBU6 | Active | UFQFPN 48 7x7x0.55 mm | - | Industrial | Ecopack2 | |
| STM32L071CBU6TR | Active | UFQFPN 48 7x7x0.55 mm | - | Industrial | Ecopack2 | |
| STM32L071CBY6TR | Active | WLCSP 49 3.3x3.3x0.6 P 0.4 mm | - | Industrial | Ecopack2 |
STM32L071CBT7
Package:
LQFP 48 7x7x1.4 mmMaterial Declaration**:
(**) 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 | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | D/A Converters (typ) (12-bit) | Timers (typ) (16-bit) | Timers (typ) (32-bit) | Number of Channels (typ) | SMPS | Number of Channels (typ) | UART (typ) | I/Os (High Current) | Integrated op-amps | Comparator | SPI (typ) | USART (typ) | Number of Channels (typ) | I2S (typ) | Advanced Motor Control Timers | CAN (2.0) | CAN (FD) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | ||||||||||||||||||||||||||||||
| STM32L071CBU6 | Active | 1.6741 / 10k | distributors No availability of distributors reported, please contact our sales office | UFQFPN 48 7x7x0.55 mm | Tray | CHINA | 3A991.a.2 | NEC | -40 | 85 |
| 6 |
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|
|
| 37 |
| 2 | 2 | 4 | 13 | 1 |
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| ||||
| STM32L071CBT6TR | Active | 1.6988 / 10k | distributors No availability of distributors reported, please contact our sales office | LQFP 48 7x7x1.4 mm | Tape and Reel | MALAYSIA | 3A991.a.2 | NEC | -40 | 85 |
| 6 |
|
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|
| 37 |
| 2 | 2 | 4 | 13 | 1 |
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| STM32L071CBT3 | Active | 1.9536 / 10k | distributors No availability of distributors reported, please contact our sales office | LQFP 48 7x7x1.4 mm | Tray | MALAYSIA | 3A991.a.2 | NEC | -40 | 125 |
| 6 |
|
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|
|
| 37 |
| 2 | 2 | 4 | 13 | 1 |
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| ||||
| STM32L071CBT3TR | Active | 1.9536 / 10k | distributors No availability of distributors reported, please contact our sales office | LQFP 48 7x7x1.4 mm | Tape and Reel | MALAYSIA | 3A991.a.2 | NEC | -40 | 125 |
| 6 |
|
|
|
|
| 37 |
| 2 | 2 | 4 | 13 | 1 |
|
|
| ||||
| STM32L071CBU6TR | Active | 1.6741 / 10k | distributors No availability of distributors reported, please contact our sales office | UFQFPN 48 7x7x0.55 mm | Tape and Reel | CHINA | 3A991.a.2 | NEC | -40 | 85 |
| 6 |
|
|
|
|
| 37 |
| 2 | 2 | 4 | 10 | 1 |
|
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| ||||
| STM32L071CBT7 | Active | 1.8177 / 10k | distributors No availability of distributors reported, please contact our sales office | LQFP 48 7x7x1.4 mm | Tray | MALAYSIA | 3A991.a.2 | NEC | -40 | 105 |
| 6 |
|
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|
|
| 37 |
| 2 | 2 | 4 | 13 | 1 |
|
|
| ||||
| STM32L071CBY6TR | Active | 1.6617 / 10k | distributors No availability of distributors reported, please contact our sales office | WLCSP 49 3.3x3.3x0.6 P 0.4 mm | Tape and Reel | SINGAPORE | 3A991.a.2 | NEC | -40 | 85 |
|
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| 40 |
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| 13 |
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| STM32L071CBT6 | Active | 1.6988 / 10k | distributors No availability of distributors reported, please contact our sales office | LQFP 48 7x7x1.4 mm | Tray | MALAYSIA | 3A991.a.2 | NEC | -40 | 85 |
| 6 |
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| 37 |
| 2 | 2 | 4 | 13 | 1 |
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STM32L071CBU6 Active
Budgetary Price (US$)*/Qty:
1.6741 / 10k
distributors
No availability of distributors reported, please contact our sales office
Package:
UFQFPN 48 7x7x0.55 mm
Packing Type:
Tray
Country of Origin:
CHINA
ECCN (US):
3A991.a.2
ECCN (EU):
NEC
STM32L071CBT6TR Active
Budgetary Price (US$)*/Qty:
1.6988 / 10k
distributors
No availability of distributors reported, please contact our sales office
Package:
LQFP 48 7x7x1.4 mm
Packing Type:
Tape and Reel
Country of Origin:
MALAYSIA
ECCN (US):
3A991.a.2
ECCN (EU):
NEC
STM32L071CBT3 Active
Budgetary Price (US$)*/Qty:
1.9536 / 10k
distributors
No availability of distributors reported, please contact our sales office
Package:
LQFP 48 7x7x1.4 mm
Packing Type:
Tray
Country of Origin:
MALAYSIA
ECCN (US):
3A991.a.2
ECCN (EU):
NEC
STM32L071CBT3TR Active
Budgetary Price (US$)*/Qty:
1.9536 / 10k
distributors
No availability of distributors reported, please contact our sales office
Package:
LQFP 48 7x7x1.4 mm
Packing Type:
Tape and Reel
Country of Origin:
MALAYSIA
ECCN (US):
3A991.a.2
ECCN (EU):
NEC
STM32L071CBU6TR Active
Budgetary Price (US$)*/Qty:
1.6741 / 10k
distributors
No availability of distributors reported, please contact our sales office
Package:
UFQFPN 48 7x7x0.55 mm
Packing Type:
Tape and Reel
Country of Origin:
CHINA
ECCN (US):
3A991.a.2
ECCN (EU):
NEC
STM32L071CBT7 Active
Budgetary Price (US$)*/Qty:
1.8177 / 10k
distributors
No availability of distributors reported, please contact our sales office
Package:
LQFP 48 7x7x1.4 mm
Packing Type:
Tray
Country of Origin:
MALAYSIA
ECCN (US):
3A991.a.2
ECCN (EU):
NEC
STM32L071CBY6TR Active
Budgetary Price (US$)*/Qty:
1.6617 / 10k
distributors
No availability of distributors reported, please contact our sales office
Package:
WLCSP 49 3.3x3.3x0.6 P 0.4 mm
Packing Type:
Tape and Reel
Country of Origin:
SINGAPORE
ECCN (US):
3A991.a.2
ECCN (EU):
NEC
STM32L071CBT6 Active
Budgetary Price (US$)*/Qty:
1.6988 / 10k
distributors
No availability of distributors reported, please contact our sales office
Package:
LQFP 48 7x7x1.4 mm
Packing Type:
Tray
Country of Origin:
MALAYSIA
ECCN (US):
3A991.a.2
ECCN (EU):
NEC
Don't show this again
(*) 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