STMicroelectronics STM32L071CBY6TR

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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM32L0
Packaging Cut Tape (CT) | Tape & Reel (TR)
Core Processor ARM® Cortex®-M0+
Core Size 32-Bit Single-Core
Speed 32MHz
Connectivity I2C, IrDA, SPI, UART/USART
Peripherals Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
Number of I/O 37
Program Memory Size 128KB (128K x 8)
Program Memory Type FLASH
EEPROM Size 6K x 8
RAM Size 20K x 8
Voltage - Supply (Vcc/Vdd) 1.65V ~ 3.6V
Data Converters A/D 13x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 49-WLCSP (3.29x3.26)
Package / Case 49-UFBGA, WLCSP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STMicroelectronics STM32L071CBY6TR is a 32-bit ARM Cortex-M0+ microcontroller designed for ultra-low-power applications. It operates from 1.65V to 3.6V at up to 32MHz, with 128KB of flash and 20KB of SRAM. The 49-UFBGA WLCSP package is extremely compact, making it ideal for space-constrained IoT and portable devices. It includes DMA, I2S, PWM, and multiple reset features for robust performance.

  • Ultra-Low Voltage (1.65V): Operates from a single alkaline cell or Li-ion battery.
  • High Memory (128KB Flash / 20KB RAM): Supports complex applications and data buffering.
  • Compact WLCSP Package: Minimizes PCB area for miniaturized products.
  • Rich Peripherals: DMA, I2S, and PWM enable versatile connectivity and control.

IoT End Nodes

The 32MHz Cortex-M0+ and 128KB flash handle protocol stacks, while 1.65V operation enables single-cell battery use.

Portable Medical Devices

Its low power and small WLCSP package allow for miniaturized glucose meters or pulse oximeters.

Smart Accessories

DMA and I2S support audio and sensor data streaming in smartwatches or earbuds.

Industrial Sensors

The wide voltage range and robust reset features ensure reliable operation in 3.3V industrial transmitters.

Consumer Electronics

With 20KB RAM, it can buffer data for display or communication in remote controls or toys.

Battery Management

Its low quiescent current and PWM outputs are suitable for monitoring and balancing cells in battery packs.

Q: What is the core processor?
A: It is based on the ARM Cortex-M0+ 32-bit core, running at up to 32MHz.
Q: What is the supply voltage range?
A: It operates from 1.65V to 3.6V, supporting low-voltage battery applications.
Q: How much flash and RAM does it have?
A: It has 128KB of flash and 20KB of SRAM.
Q: What package is available?
A: It comes in a 49-UFBGA (WLCSP) package, ideal for compact designs.
Base Product Number : STM32L071CB
128KB Flash 20KB RAM 32-bit MCU 32MHz ARM Cortex-M0+ DMA I2S IoT portable ultra-low-power WLCSP
Q: What is the core processor?
A: It is based on the ARM Cortex-M0+ 32-bit core, running at up to 32MHz.
Q: What is the supply voltage range?
A: It operates from 1.65V to 3.6V, supporting low-voltage battery applications.
Q: How much flash and RAM does it have?
A: It has 128KB of flash and 20KB of SRAM.
Q: What package is available?
A: It comes in a 49-UFBGA (WLCSP) package, ideal for compact designs.