Overview
The STM32L152RCT6A is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L series. It integrates the Arm® Cortex®-M3 32-bit RISC core, operating at a frequency of up to 32 MHz. This MCU is designed for low-power applications, offering a wide range of power-saving modes and a comprehensive set of peripherals. The device includes high-speed embedded memories, extensive I/Os, and advanced communication interfaces, making it suitable for various applications requiring high performance and low energy consumption.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® Cortex®-M3 32-bit CPU |
| Frequency | Up to 32 MHz |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40°C to 105°C |
| Flash Memory | 256 Kbytes with ECC |
| RAM | 32 Kbytes |
| EEPROM | 8 Kbytes with ECC |
| Backup Register | 128 bytes |
| ADC | 12-bit, up to 40 channels, 1 Msps |
| DAC | 12-bit, 2 channels with output buffers |
| Comparators | 2 ultra-low-power comparators |
| Timers | 1x 32-bit, 6x 16-bit, 2x 16-bit basic timers, 2x watchdog timers |
| Communication Interfaces | 1x USB 2.0, 3x USARTs, up to 8x SPIs, 2x I2Cs |
| I/Os | Up to 116 fast I/Os (102 I/Os 5V tolerant) |
| Package | LQFP 64 10x10x1.4 mm |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, Low-power run)
- Low-power, ultrasafe BOR (brownout reset) with 5 selectable thresholds
- Programmable voltage detector (PVD)
- Clock sources including crystal oscillators, internal RC oscillators, and PLL for CPU clock and USB
- Rich analog peripherals: 2 operational amplifiers, 12-bit ADC, 12-bit DAC, and ultra-low-power comparators
- Advanced communication interfaces: USB 2.0, USARTs, SPIs, I2Cs, and I2S
- Up to 23 capacitive sensing channels for touch sensing functionality
- LCD driver (except STM32L151xC/C-A devices) with contrast adjustment and blinking mode
- DMA controller with 12 channels
- Serial wire debug, JTAG, and trace capabilities
Applications
- Low-power IoT devices and smart sensors
- Portable and battery-powered devices
- Industrial automation and control systems
- Medical devices requiring low power consumption
- Consumer electronics such as wearables and fitness trackers
- Automotive systems, especially those requiring low power and high reliability
Q & A
- What is the core architecture of the STM32L152RCT6A?
The STM32L152RCT6A is based on the Arm® Cortex®-M3 32-bit RISC core.
- What is the operating voltage range of the STM32L152RCT6A?
The operating voltage range is from 1.65 V to 3.6 V.
- What are the key power-saving modes available on this MCU?
The key power-saving modes include Standby, Stop, and Low-power run modes.
- How much flash memory does the STM32L152RCT6A have?
The device has 256 Kbytes of flash memory with ECC.
- What types of communication interfaces are available on this MCU?
The MCU includes USB 2.0, USARTs, SPIs, I2Cs, and I2S interfaces.
- Does the STM32L152RCT6A support touch sensing functionality?
Yes, it supports up to 23 capacitive sensing channels for touch sensing.
- What is the maximum frequency of the CPU?
The CPU operates at a maximum frequency of 32 MHz.
- What are the temperature ranges for the STM32L152RCT6A?
The device operates in the temperature range of -40°C to 105°C.
- Does the STM32L152RCT6A have an LCD driver?
Yes, it includes an LCD driver capable of driving up to 8x40 segments with contrast adjustment and blinking mode.
- What debug capabilities are available on this MCU?
The MCU supports serial wire debug, JTAG, and trace capabilities.
