Overview
The STM32L162RET6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L1 series. It integrates the high-performance ARM® Cortex®-M3 32-bit RISC core, operating at a frequency of up to 32 MHz. This device is designed for applications requiring low power consumption and high performance, making it suitable for a wide range of uses, including industrial, medical, and consumer electronics.
The microcontroller features a comprehensive set of peripherals, including USB, USART, SPI, I2C, and I2S interfaces, along with advanced analog peripherals such as operational amplifiers, ADCs, DACs, and ultra-low-power comparators. The device also includes a real-time clock, backup registers, and an integrated LCD controller.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | ARM® Cortex®-M3 32-bit CPU |
| Operating Frequency | Up to 32 MHz |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40°C to 105°C |
| Flash Memory | 512 Kbytes with ECC |
| RAM | 80 Kbytes |
| EEPROM | 16 Kbytes with ECC |
| Backup Register | 128 bytes |
| ADC | 12-bit, 1 Msps, up to 40 channels |
| DAC | 12-bit, 2 channels with output buffers |
| Timers | 1x 32-bit, 6x 16-bit, 2x basic timers, 2x watchdog timers |
| Communication Interfaces | USB 2.0, up to 3x USARTs, up to 3x SPIs, 2x I2Cs, 2x I2S |
| Package | LQFP 64 (10x10x1.4 mm) |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, Low-power run, Low-power sleep)
- AES 128-bit encryption hardware accelerator
- Memory protection unit (MPU)
- Up to 34 capacitive sensing channels
- CRC calculation unit and 96-bit unique ID
- Low-power, ultrasafe BOR (brownout reset) with 5 selectable thresholds
- Programmable voltage detector (PVD)
- Internal oscillators (16 MHz, 37 kHz, 65 kHz to 4.2 MHz) and PLL for CPU clock and USB
- Pre-programmed bootloader and support for USB and USART
- Development support with serial wire debug, JTAG, and trace
- Integrated LCD controller with contrast adjustment and blinking mode
- Rich analog peripherals including operational amplifiers, ADCs, DACs, and ultra-low-power comparators
- DMA controller with 12 channels
Applications
The STM32L162RET6 is versatile and can be used in a variety of applications where low power consumption and high performance are critical. Some of the key application areas include:
- Industrial automation and control systems
- Medical devices requiring low power and high reliability
- Consumer electronics such as smart home devices and wearables
- Automotive systems, especially those requiring low power modes
- IoT devices and sensor networks
Q & A
- What is the core architecture of the STM32L162RET6?
The STM32L162RET6 is based on the ARM® Cortex®-M3 32-bit RISC core.
- What is the operating frequency range of the STM32L162RET6?
The operating frequency range is up to 32 MHz.
- What is the power supply range for the STM32L162RET6?
The power supply range is from 1.65 V to 3.6 V.
- What are the key power-saving modes available on the STM32L162RET6?
The key power-saving modes include Standby, Stop, Low-power run, and Low-power sleep modes.
- Does the STM32L162RET6 support encryption?
Yes, it includes an AES 128-bit encryption hardware accelerator.
- What types of communication interfaces are available on the STM32L162RET6?
The device supports USB 2.0, USART, SPI, I2C, and I2S interfaces.
- What is the package type for the STM32L162RET6?
The package type is LQFP 64 (10x10x1.4 mm).
- Does the STM32L162RET6 have an integrated LCD controller?
Yes, it includes an integrated LCD controller with contrast adjustment and blinking mode.
- What are the temperature ranges for the STM32L162RET6?
The temperature range is from -40°C to 105°C.
- Does the STM32L162RET6 support capacitive sensing?
Yes, it supports up to 34 capacitive sensing channels.
