Overview
The STM32L151RDY6TR is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L151xD and STM32L152xD series. It features the high-performance Arm® Cortex®-M3 32-bit RISC core, operating at a frequency of up to 32 MHz (33.3 DMIPS). This MCU is designed for low-power applications, incorporating advanced power-saving modes and a comprehensive set of peripherals. It includes high-speed embedded memories, a memory protection unit (MPU), and various communication interfaces such as USB, I2C, SPI, and USART. The device is suitable for a wide range of applications requiring low power consumption and high performance.
Key Specifications
| Parameter | Value |
|---|---|
| Core | Arm Cortex-M3 32-bit CPU |
| Operating Frequency | Up to 32 MHz (33.3 DMIPS) |
| Flash Memory | 384 Kbytes with ECC (2 banks of 192 Kbytes) |
| RAM | 48 Kbytes |
| EEPROM | 12 Kbytes with ECC |
| Backup Register | 128 bytes |
| Supply Voltage | 1.65 V to 3.6 V |
| Operating Temperature | -40°C to 85°C (or -40°C to 105°C for some packages) |
| Package | LQFP 64 10x10x1.4 mm or WLCSP 64 4.6x4.9x0.6 P 0.4 mm |
| Communication Interfaces | USB 2.0, up to 3 SPIs, up to 2 I2Cs, up to 3 USARTs, 2 UARTs, 1 SDIO, 2 I2S |
| Timers | 1x 32-bit, 6x 16-bit, 2x basic timers, 2x watchdog timers |
| Analog Peripherals | 3x operational amplifiers, 1x 12-bit ADC, 2x 12-bit DACs, 2x ultra-low-power comparators |
| Capacitive Sensing Channels | Up to 34 channels |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, Low-power run)
- High-performance Arm Cortex-M3 32-bit CPU up to 32 MHz
- High-speed embedded memories: 384 Kbytes of Flash, 48 Kbytes of RAM, 12 Kbytes of EEPROM
- Advanced communication interfaces: USB 2.0, SPI, I2C, USART, UART, SDIO, I2S
- Rich analog peripherals: operational amplifiers, ADC, DAC, ultra-low-power comparators
- Up to 34 capacitive sensing channels for touch sensing functionality
- Real-time clock and backup registers
- Integrated LCD controller (except STM32L151xD devices)
- Low-power, ultrasafe BOR (brownout reset) with 5 selectable thresholds
- Programmable voltage detector (PVD)
- Clock sources: crystal oscillator, internal RC oscillators, PLL for CPU clock and USB
- Pre-programmed bootloader and serial wire debug, JTAG, and trace capabilities
Applications
The STM32L151RDY6TR is suitable for a variety of applications that require low power consumption and high performance, including:
- Industrial automation and control systems
- Medical devices and healthcare equipment
- Consumer electronics and appliances
- Automotive systems and telematics
- IoT and smart home devices
- Energy management and metering systems
Q & A
- What is the core architecture of the STM32L151RDY6TR?
The core architecture is based on the Arm Cortex-M3 32-bit RISC CPU.
- What is the maximum operating frequency of the STM32L151RDY6TR?
The maximum operating frequency is up to 32 MHz.
- How much Flash memory does the STM32L151RDY6TR have?
The device has 384 Kbytes of Flash memory with ECC.
- What are the power-saving modes available on the STM32L151RDY6TR?
The device features Standby, Stop, and Low-power run modes.
- What communication interfaces are available on the STM32L151RDY6TR?
The device includes USB 2.0, SPI, I2C, USART, UART, SDIO, and I2S interfaces.
- Does the STM32L151RDY6TR support touch sensing functionality?
Yes, it supports up to 34 capacitive sensing channels.
- What is the operating temperature range of the STM32L151RDY6TR?
The operating temperature range is -40°C to 85°C (or -40°C to 105°C for some packages).
- Does the STM32L151RDY6TR have an integrated LCD controller?
No, the integrated LCD controller is not available on STM32L151xD devices.
- What are the package options for the STM32L151RDY6TR?
The device is available in LQFP 64 10x10x1.4 mm and WLCSP 64 4.6x4.9x0.6 P 0.4 mm packages.
- Is the STM32L151RDY6TR RoHS compliant?
Yes, the device is RoHS compliant with Ecopack2.
- What are the typical applications for the STM32L151RDY6TR?
Typical applications include industrial automation, medical devices, consumer electronics, automotive systems, IoT devices, and energy management systems.
