STMicroelectronics STM32L021K4T6

Skip to product information
1 of 1
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Regular price $3.54
Regular price $2.53 Sale price $3.54
Sale Sold out
Quantity Unit Price Total Price
1 $3.54 $3.54
15+ $2.33 $34.95
25+ $2.28 $57.00
50+ $2.15 $107.50
100+ $1.90 $190.00
N+ $0.38 Price Inquiry
Shipping calculated at checkout.
Quantity
Component Recycling

Request Quote / Inquiry

Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM32L0
Packaging Tray |
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, POR, PWM, WDT
Number of I/O 28
Program Memory Size 16KB (16K x 8)
Program Memory Type FLASH
EEPROM Size 512 x 8
RAM Size 2K x 8
Voltage - Supply (Vcc/Vdd) 1.65V ~ 3.6V
Data Converters A/D 10x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 32-LQFP (7x7)
Package / Case 32-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM32L021K4T6 from STMicroelectronics is an ultra-low-power 32-bit MCU based on the ARM Cortex-M0+ core. It operates at up to 32MHz with 16KB flash and 2KB SRAM, supporting a wide voltage range of 1.65V to 3.6V. This device integrates essential peripherals including DMA, PWM, and watchdog timers, making it a compact and efficient solution for cost-sensitive embedded applications.

  • Ultra-low power consumption: The 1.65V operation and multiple low-power modes extend battery life in portable devices.
  • Compact 32-LQFP package: Saves PCB space while providing enough I/O for control applications.
  • Reliable operation: Brown-out reset and watchdog timer ensure system stability in noisy environments.
  • Efficient processing: The 32MHz Cortex-M0+ core delivers adequate performance for real-time tasks with minimal energy draw.

Battery-Powered IoT Sensors

The 1.65V minimum supply voltage allows direct operation from a single alkaline cell, extending battery life in wireless sensor nodes.

Portable Medical Devices

With a 32MHz Cortex-M0+ core and 16KB flash, it handles real-time vital sign monitoring algorithms while maintaining low power consumption.

Industrial Control Panels

The integrated DMA and PWM peripherals enable precise motor control and data logging without CPU intervention, improving system efficiency.

Smart Home Automation

Its small 32-LQFP footprint and wide voltage range make it suitable for smart switches and thermostats that need reliable operation across varying power conditions.

Wearable Fitness Trackers

The low-power modes and brown-out detection ensure stable operation during activity monitoring, while the 2KB SRAM supports basic data buffering.

Automotive Accessory Modules

Operating from -40°C to 85°C, it can be used in car door modules or lighting controls where temperature extremes are common.

Q: What is the operating voltage range of the STM32L021K4T6?
A: It operates from 1.65V to 3.6V, ideal for battery-powered applications.
Q: What is the maximum CPU speed?
A: The ARM Cortex-M0+ core runs at up to 32MHz.
Q: How much flash memory does it have?
A: It provides 16KB of flash and 2KB of SRAM.
Q: What package is available?
A: It comes in a 32-pin LQFP package.
Q: Does it include low-power features?
A: Yes, it supports multiple low-power modes and includes POR, PWM, and WDT.
Base Product Number : STM32L021K4
16KB flash 32-bit MCU 32MHz ARM Cortex-M0+ industrial control IoT LQFP-32 portable medical smart home STM32 ultra-low-power wearable
Q: What is the operating voltage range of the STM32L021K4T6?
A: It operates from 1.65V to 3.6V, ideal for battery-powered applications.
Q: What is the maximum CPU speed?
A: The ARM Cortex-M0+ core runs at up to 32MHz.
Q: How much flash memory does it have?
A: It provides 16KB of flash and 2KB of SRAM.
Q: What package is available?
A: It comes in a 32-pin LQFP package.
Q: Does it include low-power features?
A: Yes, it supports multiple low-power modes and includes POR, PWM, and WDT.