Overview
The STM32L151ZCT6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L series. It integrates the high-performance 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 features including high-speed embedded memories, extensive I/Os, and advanced communication interfaces. The device is suitable for various applications requiring low power consumption, high performance, and robust peripheral sets.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® Cortex®-M3 32-bit CPU |
| Operating 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 |
| Analog Peripherals | 2x operational amplifiers, 12-bit ADC (up to 40 channels), 12-bit DAC (2 channels) |
| Communication Interfaces | USB 2.0, 3x USARTs, up to 8x SPIs, 2x I2Cs, 2x I2S |
| Timers | 1x 32-bit, 6x 16-bit, 2x 16-bit basic timers, 2x watchdog timers |
| Capacitive Sensing Channels | Up to 23 channels |
| Package | LQFP 144 (20x20x1.4 mm) |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, Low-power run)
- Low-power modes: 305 nA standby mode (3 wakeup pins), 1.15 µA standby mode + RTC, 0.475 µA stop mode (16 wakeup lines), 1.35 µA stop mode + RTC
- High-speed embedded memories: Flash, RAM, EEPROM
- Rich analog peripherals: operational amplifiers, ADC, DAC, ultra-low-power comparators
- Advanced communication interfaces: USB 2.0, USARTs, SPIs, I2Cs, I2S
- Extensive range of timers and watchdogs
- Up to 23 capacitive sensing channels
- CRC calculation unit and 96-bit unique ID
- Low-power, ultrasafe BOR (brownout reset) and programmable voltage detector (PVD)
- Internal clock sources including crystal oscillators and internal RC oscillators
- Pre-programmed bootloader and serial wire debug, JTAG, and trace capabilities
Applications
The STM32L151ZCT6 is versatile and can be used in a variety of applications, including:
- Low-power IoT devices
- 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 and high reliability
- Touch sensing applications due to its capacitive sensing capabilities
Q & A
- What is the core architecture of the STM32L151ZCT6?
The core architecture is based on the Arm® Cortex®-M3 32-bit RISC CPU.
- What is the operating frequency range of the STM32L151ZCT6?
The operating frequency range is up to 32 MHz.
- What are the power supply voltage ranges for the STM32L151ZCT6?
The power supply voltage ranges from 1.65 V to 3.6 V.
- What are the key low-power modes available in the STM32L151ZCT6?
The key low-power modes include Standby, Stop, and Low-power run modes, with currents as low as 305 nA in Standby mode.
- What types of memory does the STM32L151ZCT6 have?
The device includes 256 Kbytes of Flash memory, 32 Kbytes of RAM, and 8 Kbytes of true EEPROM.
- What are the main communication interfaces available on the STM32L151ZCT6?
The main communication interfaces include USB 2.0, USARTs, SPIs, I2Cs, and I2S.
- Does the STM32L151ZCT6 support touch sensing?
- What are the clock sources available in the STM32L151ZCT6?
The device includes various clock sources such as crystal oscillators, internal RC oscillators, and a PLL for CPU clock and USB.
- Is the STM32L151ZCT6 suitable for industrial applications?
- What is the package type of the STM32L151ZCT6?
The package type is LQFP 144 (20x20x1.4 mm).
- Does the STM32L151ZCT6 have a built-in LCD controller?
No, the STM32L151ZCT6 does not have a built-in LCD controller, unlike some other models in the series.
