STM32L072KZT6

Product Overview

The STM32L072KZT6 is an ultra-low-power 32-bit microcontroller from STMicroelectronics' STM32L0 series, built around an Arm Cortex-M0+ processor operating at up to 32 MHz. It features 192 KB of Flash memory, 20 KB of RAM, 6 KB of data EEPROM, and integrated USB 2.0 Full-Speed connectivity with crystal-less operation support.

Combining energy-efficient processing, flexible analog peripherals, and multiple serial communication interfaces, the STM32L072KZT6 is designed for compact embedded systems, battery-powered equipment, industrial monitoring, and connected sensor applications. It is supplied in an LQFP-32 package measuring 7 × 7 mm.

Key Features

• 32-bit Arm Cortex-M0+ processor running at up to 32 MHz

• 192 KB embedded Flash memory

• 20 KB SRAM

• 6 KB data EEPROM

• USB 2.0 Full-Speed interface with crystal-less operation support

• 12-bit ADC with hardware oversampling

• Two 12-bit DACs

• Two ultra-low-power comparators

• Multiple USART and I²C communication interfaces

• SPI interface

• Low-power timer and real-time clock

• Memory protection unit (MPU)

• Multiple low-power operating modes

• LQFP-32 package

• Industrial operating temperature range

Technical Specifications

Processor & Architecture

The STM32L072KZT6 uses an Arm Cortex-M0+ 32-bit RISC processor with a maximum clock frequency of 32 MHz. Its architecture is designed for low-power embedded processing while supporting common control, measurement, and communication tasks.

An integrated memory protection unit helps control memory access, while flexible clock configuration allows developers to balance performance and energy consumption.

Memory & Storage

The device integrates several memory resources for firmware execution and data storage:

• 192 KB Flash memory for application code and nonvolatile program storage

• 20 KB SRAM for runtime data, variables, and buffers

• 6 KB data EEPROM for persistent application settings and records

• External memory expansion options through supported serial interfaces

Analog Peripherals

Integrated analog resources support sensor measurement, signal generation, and monitoring functions.

• One 12-bit ADC with hardware oversampling

• Two 12-bit DACs

• Two ultra-low-power comparators

• Multiple analog input channels, depending on pin configuration

These resources can help reduce external component requirements in low-power measurement and control designs.

Timer & PWM Resources

The STM32L072KZT6 provides timing and control peripherals for embedded applications.

• Multiple general-purpose 16-bit timers

• Basic timers

• Low-power timer (LPTIM)

• Real-time clock (RTC)

• SysTick system timer

• Watchdog timers

Timer resources can support event scheduling, pulse generation, input measurement, and periodic wake-up operations. Refer to the official datasheet for the exact timer and channel configuration.

Communication & Connectivity

The STM32L072KZT6 integrates interfaces for connecting sensors, peripherals, host systems, and external memory.

• USB 2.0 Full-Speed with crystal-less operation support

• USART interfaces

• I²C interfaces

• SPI interface

• Infrared interface support through applicable serial peripherals

The USB interface is particularly useful for compact devices that require a direct wired connection to a host computer or other USB-compatible equipment.

Clock & Power Management

The device offers flexible clock and power-control options to support different application requirements.

• Internal and external clock sources

• Configurable system and peripheral clocks

• Internal voltage adaptation

• Multiple low-power operating modes

• RTC-based timing and wake-up support

These features help designers optimize operating efficiency for both continuously active and intermittently active devices.

Low-Power Operation

The STM32L072KZT6 is designed for energy-conscious embedded products. Its low-power modes allow the processor and selected peripherals to reduce energy consumption when full processing performance is unnecessary.

Applications can use low-power timers, RTC events, and peripheral wake-up capabilities to implement duty-cycled operation in battery-powered equipment.

Power Management

Integrated power-management features support operation across a 1.65–3.6 V supply range. Firmware can configure clock sources, peripheral activity, and low-power states according to system requirements.

For battery-life calculations and power-supply design, consult the official datasheet for current consumption, startup behavior, and operating-mode limitations.

Security & Data Integrity

The STM32L072KZT6 provides features that help improve embedded system reliability and data integrity.

• Memory protection unit (MPU)

• Flash memory readout protection

• Cyclic redundancy check (CRC) calculation unit

• Unique device identification

• Watchdog resources for application monitoring

The STM32L072KZT6 is not the AES-equipped STM32L082 variant; do not assume hardware AES acceleration is available on this exact part.

Development & Debugging

The STM32L072KZT6 is supported by the STM32 development ecosystem.

• Serial Wire Debug (SWD)

• Compatible STM32 programming and debugging tools

• STM32Cube development software

• Support for embedded C/C++ development workflows

• Manufacturer documentation and peripheral libraries

Developers should verify debugger, firmware library, and IDE compatibility with the selected hardware design.

Applications

The STM32L072KZT6 is suitable for a variety of low-power embedded applications, including:

• Battery-powered IoT devices

• USB-connected control devices

• Smart sensors and data loggers

• Industrial monitoring equipment

• Smart meters

• Home and building automation

• Portable measurement equipment

• Consumer electronics

• Remote monitoring and control systems

Benefits

• Low-power processing: Cortex-M0+ architecture supports energy-efficient embedded control.

• Integrated memory: Flash, SRAM, and data EEPROM support program execution and persistent data storage.

• USB connectivity: Full-Speed USB simplifies host-device communication.

• Analog integration: ADC, DACs, and comparators support measurement and signal-control applications.

• Compact design: LQFP-32 packaging helps reduce PCB space requirements.

• Established development ecosystem: STM32 tools and documentation support design, testing, and maintenance.

Packaging & Ordering Information

• Part Number: STM32L072KZT6

• Manufacturer: STMicroelectronics

• Device Family: STM32L0 Ultra-Low-Power Microcontrollers

• Package: LQFP-32

• Package Code: LQFP32

• Package Size: 7 × 7 × 1.4 mm

• Packing Type: Tray

• Supply Voltage: 1.65–3.6 V

• Operating Temperature: -40°C to +85°C

• Product Status: Active, in volume production

• Grade: Industrial

• RoHS: ECOPACK2 compliant

Datasheet

For complete electrical characteristics, pin configuration, memory architecture, ADC specifications, timer configuration, communication interfaces, absolute maximum ratings, and application information, please refer to the official STMicroelectronics documentation.

Datasheet: Official STM32L072KZT6 Datasheet

Frequently Asked Questions

What is the maximum operating frequency of the STM32L072KZT6?

The Arm Cortex-M0+ processor operates at up to 32 MHz.

How much Flash memory does the STM32L072KZT6 provide?

It has 192 KB of embedded Flash memory, 20 KB of SRAM, and 6 KB of data EEPROM.

Does the STM32L072KZT6 support USB?

Yes. It integrates USB 2.0 Full-Speed connectivity with crystal-less operation support.

What package does the STM32L072KZT6 use?

It uses an LQFP-32 package measuring 7 × 7 × 1.4 mm.

What is the operating voltage range?

The specified supply voltage range is 1.65–3.6 V.

Is the STM32L072KZT6 suitable for industrial applications?

Yes. It is an active, industrial-grade device specified for operation from -40°C to +85°C.

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