Overview
The STM32L073CZT6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L073xx family. It integrates the Arm Cortex-M0+ 32-bit RISC core, operating at a frequency of up to 32 MHz. This MCU is designed for high power efficiency and features a wide range of enhanced I/Os and peripherals. It includes high-speed embedded memories, extensive analog features, and multiple communication interfaces, making it suitable for a variety of low-power applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm 32-bit Cortex-M0+ |
| Maximum 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 |
| Temperature Range | -40 to 125 °C |
| Low-Power Modes | Standby: 0.29 µA, Stop: 0.43 µA, Stop + RTC + RAM retention: 0.86 µA |
| ADC | 12-bit, 1.14 Msps, up to 16 channels |
| DACs | 2 x 12-bit with output buffers |
| Comparators | 2 ultra-low-power comparators |
| Timers | 11 timers including 16-bit and ultra-low-power timers, RTC, and SysTick |
| Communication Interfaces | USB 2.0 crystal-less, 4 USARTs, 1 UART (low power), up to 6 SPIs, 3 I2Cs |
| Capacitive Sensing Channels | Up to 24 channels |
| Package | LQFP 48 7x7x1.4 mm |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, etc.)
- High-performance Arm Cortex-M0+ core with MPU
- High-speed embedded memories: up to 192 Kbytes Flash, 20 Kbytes RAM, 6 Kbytes EEPROM
- Rich analog peripherals: 12-bit ADC, 2 x 12-bit DACs, ultra-low-power comparators
- Extensive communication interfaces: USB 2.0 crystal-less, USARTs, UART, SPIs, I2Cs
- Up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors
- LCD driver for up to 4x52 or 8x48 segments with contrast adjustment and blinking mode
- Internal voltage adaptation and multiple clock sources
- Pre-programmed bootloader and serial wire debug support
- Ultra-safe, low-power BOR and PVD
Applications
The STM32L073CZT6 is suitable for a wide range of applications requiring low power consumption and high performance. These include:
- IoT devices and smart home appliances
- Wearable electronics and health monitoring devices
- Industrial automation and control systems
- Automotive systems, especially those requiring low power and high reliability
- Consumer electronics such as remote controls, gaming devices, and audio equipment
Q & A
- What is the core architecture of the STM32L073CZT6?
The core architecture is based on the Arm 32-bit Cortex-M0+.
- What is the maximum frequency of the STM32L073CZT6?
The maximum frequency is up to 32 MHz.
- How much Flash memory does the STM32L073CZT6 have?
It has up to 192 Kbytes of Flash memory with ECC.
- What are the power supply voltage ranges for the STM32L073CZT6?
The power supply voltage ranges from 1.65 V to 3.6 V.
- What are the low-power modes available on the STM32L073CZT6?
The available low-power modes include Standby, Stop, and Stop + RTC + RAM retention.
- Does the STM32L073CZT6 support capacitive sensing?
Yes, it supports up to 24 capacitive sensing channels.
- What communication interfaces are available on the STM32L073CZT6?
The available interfaces include USB 2.0 crystal-less, USARTs, UART, SPIs, and I2Cs.
- Does the STM32L073CZT6 have an LCD driver?
Yes, it has an LCD driver for up to 4x52 or 8x48 segments with contrast adjustment and blinking mode.
- What is the temperature range for the STM32L073CZT6?
The operating temperature range is from -40 to 125 °C.
- Is the STM32L073CZT6 RoHS compliant?
Yes, the STM32L073CZT6 is RoHS compliant and comes in ECOPACK2 packages.
