Overview
The STM32L152RCT6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L151xC and STM32L152xC series. It features the high-performance ARM® Cortex®-M3 32-bit RISC core, operating at a frequency of up to 32 MHz. This microcontroller is designed to provide a balance between performance and power efficiency, making it suitable for a wide range of low-power applications. It includes a memory protection unit (MPU), high-speed embedded memories, and an extensive set of enhanced I/Os and peripherals connected to two APB buses.
The device supports various communication interfaces such as USB, USART, SPI, I2C, and I2S, along with advanced analog peripherals like operational amplifiers, ADCs, DACs, and ultra-low-power comparators. Additionally, it includes a real-time clock, backup registers, and an integrated LCD controller. The ultra-low-power design and multiple power-saving modes make it ideal for applications requiring low energy consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Core | ARM Cortex-M3 32-bit CPU |
| Frequency | Up to 32 MHz |
| Flash Memory | 256 Kbytes with ECC |
| RAM | 32 Kbytes |
| EEPROM | 8 Kbytes with ECC |
| Backup Register | 128 bytes |
| Supply Voltage | 1.65 V to 3.6 V |
| Operating Temperature | -40°C to 85°C (or up to 105°C for some versions) |
| Package | LQFP 64 10x10x1.4 mm |
| Low-Power Modes | Standby, Stop, Low-power Run, etc. |
| Current Consumption | 0.29 µA in Standby mode, 1.15 µA in Standby mode + RTC, etc. |
| Communication Interfaces | USB, USART, SPI, I2C, I2S |
| Analog Peripherals | 2x Operational Amplifiers, 12-bit ADC, 2x DACs, 2x Ultra-Low-Power Comparators |
| Timers | 1x 32-bit, 6x 16-bit, 2x Basic Timers |
| Capacitive Sensing Channels | Up to 23 channels |
Key Features
- Ultra-Low-Power Platform: Features multiple power-saving modes including Standby, Stop, and Low-power Run modes, with ultra-low current consumption (e.g., 0.29 µA in Standby mode).
- High-Performance Core: ARM Cortex-M3 32-bit CPU operating at up to 32 MHz (33.3 DMIPS).
- Memory and Storage: 256 Kbytes of Flash memory with ECC, 32 Kbytes of RAM, 8 Kbytes of true EEPROM with ECC, and a 128-byte backup register.
- Analog Peripherals: Includes two operational amplifiers, a 12-bit ADC, two DACs, and two ultra-low-power comparators.
- Communication Interfaces: Supports USB, up to three USARTs, three SPIs, two I2Cs, and two I2S interfaces.
- Timers and Clocks: Features one 32-bit timer, six 16-bit timers, two basic timers, and multiple clock sources including a 32 kHz oscillator for RTC.
- Capacitive Sensing: Up to 23 capacitive sensing channels for touch sensing functionality.
- LCD Controller: Integrated LCD controller capable of driving up to 8 multiplexed LCDs with contrast independent of the supply voltage.
- Power Management: Includes low-power, ultra-safe BOR (brownout reset), POR/PDR, PVD, and multiple power-saving modes.
Applications
- Low-Power IoT Devices: Ideal for Internet of Things (IoT) applications requiring low energy consumption and high performance.
- Industrial Automation: Suitable for industrial control systems, sensors, and actuators due to its robust communication interfaces and analog peripherals.
- Medical Devices: Can be used in medical devices that require low power consumption and precise analog measurements.
- Consumer Electronics: Applicable in various consumer electronics such as smart home devices, wearables, and handheld devices.
- Automotive Systems: Suitable for automotive applications requiring low power and high reliability, such as in-car infotainment systems and sensors.
Q & A
- What is the core architecture of the STM32L152RCT6?
The STM32L152RCT6 features an ARM Cortex-M3 32-bit RISC core.
- What is the maximum frequency of the STM32L152RCT6?
The maximum frequency is up to 32 MHz.
- How much Flash memory does the STM32L152RCT6 have?
The device has 256 Kbytes of Flash memory with ECC.
- What are the power supply voltage ranges for the STM32L152RCT6?
The device operates from 1.65 V to 3.6 V.
- What are the operating temperature ranges for the STM32L152RCT6?
The operating temperature ranges are from -40°C to 85°C (or up to 105°C for some versions).
- Does the STM32L152RCT6 support USB?
Yes, it supports USB 2.0 with an internal 48 MHz PLL.
- What analog peripherals are available on the STM32L152RCT6?
The device includes two operational amplifiers, a 12-bit ADC, two DACs, and two ultra-low-power comparators.
- How many capacitive sensing channels does the STM32L152RCT6 have?
It has up to 23 capacitive sensing channels.
- Does the STM32L152RCT6 have an integrated LCD controller?
Yes, it includes an integrated LCD controller capable of driving up to 8 multiplexed LCDs.
- What are the low-power modes available on the STM32L152RCT6?
The device features multiple low-power modes including Standby, Stop, and Low-power Run modes.
