Overview
The STM32L073CZU6D is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L0 series. It integrates the high-performance Arm Cortex-M0+ 32-bit RISC core, operating at a frequency of up to 32 MHz. This MCU is designed for applications requiring high power efficiency and advanced peripherals. It features a comprehensive set of power-saving modes, making it ideal for low-power designs. The device includes a range of enhanced I/Os and peripherals, such as USB 2.0, multiple timers, ADCs, DACs, and communication interfaces like I2C, SPI, and USART.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm Cortex-M0+ 32-bit RISC core |
| Operating Frequency | Up to 32 MHz |
| Flash Memory | Up to 192 Kbytes with ECC (2 banks with read-while-write capability) |
| RAM | 20 Kbytes |
| Data EEPROM | 6 Kbytes with ECC |
| Backup Register | 20 bytes |
| Power Supply | 1.65 V to 3.6 V (down to 1.65 V at power down) |
| Operating Temperature | -40 to +125 °C |
| I/Os | Up to 84 fast I/Os (78 I/Os 5V tolerant) |
| Clock Sources | 1 to 25 MHz crystal oscillator, 32 kHz oscillator for RTC, internal RC oscillators |
| Communication Interfaces | USB 2.0, up to three I2Cs, two SPIs, one I2S, four USARTs, one LPUART |
| Analog Peripherals | 12-bit ADC, two 12-bit DACs, two ultra-low-power comparators |
| Timers | Four general-purpose 16-bit timers, two basic timers, one low-power timer (LPTIM), one RTC |
| Capacitive Sensing Channels | Up to 24 channels |
| Package | UFQFPN 48 7x7x0.55 mm |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, and Sleep modes)
- High-performance Arm Cortex-M0+ core with a memory protection unit (MPU)
- High-speed embedded memories: up to 192 Kbytes of Flash, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM
- Advanced analog peripherals: 12-bit ADC, two 12-bit DACs, and two ultra-low-power comparators
- Extensive range of communication interfaces: USB 2.0, I2C, SPI, I2S, USART, and LPUART
- Integrated LCD controller with a built-in LCD voltage generator for up to 8 multiplexed LCDs
- Up to 24 capacitive sensing channels for touch sensing functionality
- Real-time clock and backup registers that remain powered in Standby mode
- Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds and programmable voltage detector (PVD)
Applications
- Low-power IoT devices and wireless sensor networks
- Portable and battery-powered devices such as wearables and smart home devices
- Industrial automation and control systems requiring low power consumption
- Medical devices and healthcare applications where power efficiency is crucial
- Automotive systems, especially those requiring low power and high reliability
Q & A
- What is the core architecture of the STM32L073CZU6D?
The core architecture is based on the Arm Cortex-M0+ 32-bit RISC core.
- What is the maximum operating frequency of the STM32L073CZU6D?
The maximum operating frequency is up to 32 MHz.
- What types of memory does the STM32L073CZU6D have?
The device includes up to 192 Kbytes of Flash memory, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM.
- What is the power supply range for the STM32L073CZU6D?
The power supply range is from 1.65 V to 3.6 V.
- What are the key analog peripherals of the STM32L073CZU6D?
The key analog peripherals include a 12-bit ADC, two 12-bit DACs, and two ultra-low-power comparators.
- Does the STM32L073CZU6D support USB?
- What is the operating temperature range of the STM32L073CZU6D?
The operating temperature range is from -40 to +125 °C.
- How many capacitive sensing channels does the STM32L073CZU6D have?
The device has up to 24 capacitive sensing channels.
- What types of timers are available on the STM32L073CZU6D?
The device includes four general-purpose 16-bit timers, two basic timers, one low-power timer (LPTIM), and one RTC.
- Does the STM32L073CZU6D have an integrated LCD controller?
