Overview
The STM32L151R8H6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L151x6/8/B 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 low-power applications, featuring a comprehensive set of power-saving modes and a wide range of peripherals and interfaces.
The microcontroller includes high-speed embedded memories such as up to 128 Kbytes of Flash memory, up to 16 Kbytes of RAM, and up to 4 Kbytes of true EEPROM, all with Error Correction Code (ECC). It also features a real-time clock, backup registers, and an extensive set of analog and digital peripherals.
The STM32L151R8H6 operates within a temperature range of -40°C to 85°C, extendable to 105°C in low power dissipation state, and supports a power supply range from 1.65 V to 3.6 V.
Key Specifications
| Specification | Details |
|---|---|
| Core | ARM® Cortex®-M3 32-bit CPU |
| Frequency | Up to 32 MHz |
| Flash Memory | Up to 128 Kbytes with ECC |
| RAM | Up to 16 Kbytes |
| EEPROM | Up to 4 Kbytes with ECC |
| Backup Register | 80 bytes |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40°C to 85°C (extendable to 105°C in low power dissipation state) |
| ADC | 12-bit, up to 24 channels |
| DAC | 12-bit, 2 channels with output buffers |
| Comparators | 2 ultra-low-power comparators |
| Timers | 6 general-purpose 16-bit timers, 2 basic timers, 2 watchdog timers |
| Communication Interfaces | 1x USB 2.0, 3x USARTs, 2x SPIs, 2x I2Cs |
| Capacitive Sensing Channels | Up to 20 channels |
| I/Os | Up to 83 fast I/Os (73 I/Os 5V tolerant) |
Key Features
- Ultra-low-power platform: Features multiple power-saving modes including Standby, Stop, and Low-power run modes.
- High-performance core: ARM® Cortex®-M3 32-bit CPU operating at up to 32 MHz.
- Rich analog peripherals: Includes a 12-bit ADC, 2 DACs, and 2 ultra-low-power comparators.
- Advanced communication interfaces: Supports USB 2.0, USARTs, SPIs, and I2Cs.
- Capacitive sensing: Up to 20 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- Real-time clock and backup registers: Includes a real-time clock and backup registers that remain powered in Standby mode.
- Memory protection unit: Enhances system security with a memory protection unit (MPU).
- Development support: Supports serial wire debug, JTAG, and trace for ease of development.
Applications
- Low-power IoT devices: Ideal for Internet of Things (IoT) applications requiring minimal power consumption.
- Industrial automation: Suitable for industrial control systems and automation due to its robust peripherals and interfaces.
- Medical devices: Can be used in medical devices that require low power consumption and high reliability.
- Consumer electronics: Applicable in various consumer electronics such as smart home devices, wearables, and handheld devices.
- Automotive systems: Can be integrated into automotive systems for control and monitoring functions.
Q & A
- What is the core architecture of the STM32L151R8H6?
The STM32L151R8H6 features an ARM® Cortex®-M3 32-bit RISC core.
- What is the maximum frequency of the STM32L151R8H6?
The maximum frequency is up to 32 MHz.
- What are the power-saving modes available in the STM32L151R8H6?
The device supports Standby, Stop, and Low-power run modes among others.
- What is the temperature range of the STM32L151R8H6?
The device operates within a temperature range of -40°C to 85°C, extendable to 105°C in low power dissipation state.
- What types of communication interfaces does the STM32L151R8H6 support?
The device supports USB 2.0, USARTs, SPIs, and I2Cs.
- How many capacitive sensing channels does the STM32L151R8H6 have?
The device has up to 20 capacitive sensing channels.
- Does the STM32L151R8H6 have a real-time clock?
Yes, it includes a real-time clock and backup registers.
- What is the maximum amount of Flash memory available in the STM32L151R8H6?
The device has up to 128 Kbytes of Flash memory with ECC.
- Does the STM32L151R8H6 support JTAG and trace for debugging?
Yes, it supports serial wire debug, JTAG, and trace.
- What are some typical applications of the STM32L151R8H6?
Typical applications include low-power IoT devices, industrial automation, medical devices, consumer electronics, and automotive systems.
