Overview
The STM32L072RZH6TR, produced by STMicroelectronics, is an ultra-low-power microcontroller belonging to the STM32L072xx family. It integrates the Arm Cortex-M0+ 32-bit RISC core, operating at a frequency of up to 32 MHz, along with a memory protection unit (MPU). This MCU is designed for high power efficiency and features a wide range of internal and external clock sources, internal voltage adaptation, and several low-power modes.
The device includes high-speed embedded memories such as up to 192 Kbytes of Flash program memory, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM. It also offers an extensive range of enhanced I/Os and peripherals, including analog features like a 12-bit ADC, two DACs, and ultra-low-power comparators.
The STM32L072RZH6TR supports various communication interfaces, including USB 2.0 crystal-less, USART, SPI, I2C, and I2S. It is available in a TFBGA 64 package and operates within a temperature range of -40 to +125 °C.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm 32-bit Cortex-M0+ with MPU |
| Frequency | Up to 32 MHz |
| Flash Memory | Up to 192 Kbytes with ECC (2 banks with read-while-write capability) |
| RAM | 20 Kbytes |
| EEPROM | 6 Kbytes of data EEPROM with ECC |
| Backup Register | 20-byte backup register |
| Power Supply | 1.65 V to 3.6 V (down to 1.65 V at power down) |
| Temperature Range | -40 to +125 °C |
| Low-Power Modes | Standby: 0.29 µA (3 wakeup pins), Stop: 0.43 µA (16 wakeup lines), Stop + RTC + 20-Kbyte RAM retention: 0.86 µA |
| Wakeup Time | 5 µs from Flash memory |
| ADC Conversion | 41 µA at 10 ksps |
| Communication Interfaces | USB 2.0 crystal-less, up to three I2Cs, two SPIs, one I2S, four USARTs, one low-power UART (LPUART) |
| Package | TFBGA 64 5x5x1.2 P 0.5 mm |
Key Features
- Ultra-low-power platform with multiple low-power modes (Standby, Stop, etc.)
- High-performance Arm Cortex-M0+ 32-bit RISC core with MPU
- High-speed embedded memories: up to 192 Kbytes Flash, 20 Kbytes RAM, 6 Kbytes EEPROM
- Extensive range of enhanced I/Os and peripherals
- Analog features: 12-bit ADC, two DACs, two ultra-low-power comparators
- Up to 24 capacitive sensing channels for touch sensing functionality
- Real-time clock and backup registers
- Multiple communication interfaces: USB 2.0 crystal-less, USART, SPI, I2C, I2S
- Internal and external clock sources, including high-speed internal RC and PLL for CPU clock
- Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
- Programmable voltage detector (PVD) and ultra-low-power POR/PDR
Applications
The STM32L072RZH6TR is suitable for a wide range of low-power applications, including:
- IoT devices and smart home appliances
- Wearable devices and health monitors
- Industrial automation and control systems
- Medical devices requiring low power consumption
- Consumer electronics such as remote controls and gaming devices
- Automotive systems, especially those requiring low power and high reliability
Q & A
- What is the core architecture of the STM32L072RZH6TR?
The core architecture is based on the Arm 32-bit Cortex-M0+ with a memory protection unit (MPU).
- What is the maximum frequency of the STM32L072RZH6TR?
The maximum frequency is up to 32 MHz.
- What are the power supply and temperature ranges for the STM32L072RZH6TR?
The power supply range is 1.65 V to 3.6 V, and the temperature range is -40 to +125 °C.
- What are the low-power modes available on the STM32L072RZH6TR?
The device supports Standby, Stop, and Stop + RTC + 20-Kbyte RAM retention modes.
- What is the wakeup time from Flash memory?
The wakeup time is 5 µs from Flash memory.
- What communication interfaces are supported by the STM32L072RZH6TR?
The device supports USB 2.0 crystal-less, up to three I2Cs, two SPIs, one I2S, four USARTs, and one low-power UART (LPUART).
- What is the package type of the STM32L072RZH6TR?
The package type is TFBGA 64 5x5x1.2 P 0.5 mm.
- Does the STM32L072RZH6TR support touch sensing functionality?
Yes, it supports up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- What are the key analog features of the STM32L072RZH6TR?
The key analog features include a 12-bit ADC, two DACs, and two ultra-low-power comparators.
- Is the STM32L072RZH6TR RoHS compliant?
Yes, the device is RoHS compliant and comes in ECOPACK2 packages.
