Overview
The STM32L151RDT6TR is a member of the ultra-low-power STM32L151xD and STM32L152xD microcontroller families from STMicroelectronics. These devices are based on the high-performance Arm® Cortex®-M3 32-bit RISC core, operating at a frequency of up to 32 MHz. The STM32L151RDT6TR integrates a range of advanced features, including high-speed embedded memories, extensive I/Os, and enhanced peripherals. It is designed to offer a balance between performance and power efficiency, making it suitable for a variety of low-power applications.
Key Specifications
| Parameter | Value |
|---|---|
| Core | Arm® Cortex®-M3 32-bit CPU |
| Frequency | Up to 32 MHz |
| Flash Memory | 384 Kbytes with ECC |
| RAM | 48 Kbytes |
| EEPROM | 12 Kbytes with ECC |
| Backup Register | 128 bytes |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40°C to 105°C |
| Low-Power Modes | Standby: 305 nA, Stop: 0.475 µA, Low-power run: 11 µA, Run: 230 µA/MHz |
| Timers | 1x 32-bit, 6x 16-bit, 2x 16-bit basic timers, 2x watchdog timers |
| Analog Peripherals | 3x operational amplifiers, 12-bit ADC (up to 40 channels), 12-bit DAC (2 channels), 2x ultra-low-power comparators |
| Communication Interfaces | USB 2.0, up to 5x USARTs, up to 8x SPIs, 2x I2Cs, 1x SDIO |
| Capacitive Sensing Channels | Up to 34 channels |
| Package | LQFP 64 10x10x1.4 mm |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, Low-power run, Run)
- High-performance Arm® Cortex®-M3 32-bit CPU with up to 32 MHz frequency and 33.3 DMIPS peak performance
- High-speed embedded memories: 384 Kbytes of Flash, 48 Kbytes of RAM, 12 Kbytes of true EEPROM
- Rich analog peripherals including operational amplifiers, ADC, DAC, and ultra-low-power comparators
- Extensive range of communication interfaces: USB 2.0, USARTs, SPIs, I2Cs, SDIO
- Up to 34 capacitive sensing channels for touch sensing functionality
- Real-time clock and backup registers for persistent data storage
- Integrated LCD controller (except STM32L151xD devices) with LCD voltage generator
- Low-power, ultrasafe BOR (brownout reset) and programmable voltage detector (PVD)
- Multiple clock sources including crystal oscillators and internal RC oscillators
- Pre-programmed bootloader and support for serial wire debug, JTAG, and trace
Applications
- Industrial automation and control systems
- Medical devices requiring low power consumption
- Consumer electronics such as smart home devices and wearables
- Automotive systems, especially those requiring low-power operation
- IoT devices and wireless sensor networks
- Energy metering and smart grid applications
Q & A
- What is the core architecture of the STM32L151RDT6TR?
The STM32L151RDT6TR is based on the Arm® Cortex®-M3 32-bit RISC core.
- What is the maximum frequency of the CPU?
The CPU operates at a maximum frequency of 32 MHz.
- What are the power supply voltage ranges for this device?
The device operates from a power supply voltage of 1.65 V to 3.6 V.
- What are the low-power modes available on this device?
The device supports Standby, Stop, Low-power run, and Run modes with various current consumptions.
- What types of memory does the STM32L151RDT6TR have?
The device includes 384 Kbytes of Flash memory, 48 Kbytes of RAM, and 12 Kbytes of true EEPROM.
- What are the key analog peripherals available on this device?
The device features operational amplifiers, a 12-bit ADC, a 12-bit DAC, and ultra-low-power comparators.
- What communication interfaces are supported by the STM32L151RDT6TR?
The device supports USB 2.0, USARTs, SPIs, I2Cs, and an SDIO interface.
- Does the STM32L151RDT6TR support touch sensing?
Yes, it supports up to 34 capacitive sensing channels for touch sensing functionality.
- What is the package type of the STM32L151RDT6TR?
The device is available in an LQFP 64 10x10x1.4 mm package.
- Is the STM32L151RDT6TR RoHS compliant?
Yes, the device is RoHS compliant.
