STMicroelectronics STM32L073RZT3

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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, LINbus, SPI, UART/USART, USB
Peripherals Brown-out Detect/Reset, DMA, I2S, LCD, POR, PWM, WDT
Number of I/O 51
Program Memory Size 192KB (192K x 8)
Program Memory Type FLASH
EEPROM Size 6K x 8
RAM Size 20K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 3.6V
Data Converters A/D 16x12b; D/A 2x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 125°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 64-LQFP (10x10)
Package / Case 64-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM32L073RZT3 from STMicroelectronics is an ultra-low-power ARM Cortex-M0+ microcontroller. It operates at 32MHz with 192KB flash and 20KB RAM. The device features an integrated LCD controller, I2S, and multiple analog peripherals. With a supply range of 1.8V to 3.6V and a temperature range up to 125°C, it is designed for energy-efficient and high-reliability applications.

  • Ultra-low-power Cortex-M0+ core: Extends battery life in portable and wireless applications.
  • Integrated LCD controller: Eliminates external display driver ICs, reducing PCB size and cost.
  • Wide temperature range (-40°C to 125°C): Suitable for harsh industrial and automotive environments.
  • 192KB flash / 20KB RAM: Ample memory for complex applications and data logging.
  • Rich analog and digital peripherals: Includes I2S, DMA, PWM, and brown-out detection for versatile system design.

Battery-Powered IoT Sensors

The 1.8V-3.6V range and low-power modes of the Cortex-M0+ core enable years of operation from a coin cell in wireless sensor nodes.

Medical Monitoring Devices

With an integrated LCD controller and 125°C rating, it can drive patient vitals displays in portable monitors while maintaining accuracy in sterilization processes.

Smart Meters

The 192KB flash supports complex metering algorithms, while the LCD driver directly interfaces with display panels for consumption readouts.

Industrial Process Control

Brown-out detection and POR ensure safe operation in power-fluctuating industrial environments, protecting critical control loops.

Consumer Electronics

I2S support enables high-quality audio processing in smart home devices, while the 32MHz core handles user interface tasks efficiently.

Automotive Aftermarket

The extended temperature range and robust peripherals make it ideal for engine monitoring modules and telematics units.

Q: What is the maximum clock speed of the STM32L073RZT3?
A: It runs at up to 32MHz using the ARM Cortex-M0+ core.
Q: What is the supply voltage range?
A: It operates from 1.8V to 3.6V, suitable for battery-powered devices.
Q: How much flash and RAM does it have?
A: It has 192KB of flash memory and 20KB of RAM.
Q: Does it support LCD driving?
A: Yes, it includes an integrated LCD controller for direct segment LCD interfacing.
Q: What is the operating temperature range?
A: It is rated for -40°C to 125°C, making it suitable for extreme environments.
Base Product Number : STM32L073RZ
192KB Flash 20KB RAM 32-bit MCU 32MHz ARM Cortex-M0+ I2S IoT LCD Controller LQFP-64 Medical Ultra-low-power
Q: What is the maximum clock speed of the STM32L073RZT3?
A: It runs at up to 32MHz using the ARM Cortex-M0+ core.
Q: What is the supply voltage range?
A: It operates from 1.8V to 3.6V, suitable for battery-powered devices.
Q: How much flash and RAM does it have?
A: It has 192KB of flash memory and 20KB of RAM.
Q: Does it support LCD driving?
A: Yes, it includes an integrated LCD controller for direct segment LCD interfacing.
Q: What is the operating temperature range?
A: It is rated for -40°C to 125°C, making it suitable for extreme environments.