Overview
The STM32L052K8T6D is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L0 series. It is based on the Arm® 32-bit Cortex®-M0+ core, operating at a maximum frequency of 32 MHz. This device is designed for low-power applications, featuring a wide range of power-saving modes and advanced peripherals. The STM32L052K8T6D is ideal for applications requiring high performance, low energy consumption, and extensive connectivity options.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M0+ with MPU |
| Frequency | Up to 32 MHz |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40 to 125 °C |
| Flash Memory | Up to 64 KB with ECC |
| RAM | 8 KB |
| EEPROM | 2 KB with ECC |
| Backup Register | 20 bytes |
| Low-Power Modes | Standby: 0.27 μA (2 wakeup pins), Stop: 0.4 μA (16 wakeup lines), Stop + RTC + 8 KB RAM retention: 0.8 μA |
| Wakeup Time | 3.5 μs (from RAM), 5 μs (from Flash memory) |
| Clock Sources | 1 to 25 MHz crystal oscillator, 32 kHz oscillator for RTC, internal 16 MHz RC, internal multispeed low-power RC |
| Analog Peripherals | 12-bit ADC (up to 16 channels), 12-bit DAC (1 channel), 2 ultra-low-power comparators |
| Communication Interfaces | USB 2.0 crystal-less, 2x USART, 1x UART (low power), up to 4x SPI, 2x I2C |
| Timers | 9 timers including 16-bit, ultra-low-power timer, SysTick, RTC, and watchdogs |
| Capacitive Sensing Channels | Up to 24 channels |
| Package | LQFP 32 (7x7x1.4 mm) |
Key Features
- Ultra-low-power platform with multiple power-saving modes.
- Arm® 32-bit Cortex®-M0+ core with MPU, operating up to 32 MHz.
- High-speed embedded memories: up to 64 KB Flash, 8 KB RAM, and 2 KB EEPROM.
- Rich analog peripherals: 12-bit ADC, 12-bit DAC, and ultra-low-power comparators.
- Extensive range of communication interfaces: USB 2.0 crystal-less, USART, UART, SPI, and I2C.
- Up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- 7-channel DMA controller supporting ADC, SPI, I2C, USART, DAC, and timers.
- True RNG and firewall protection for enhanced security.
- Ultra-safe, low-power BOR (brownout reset) and programmable voltage detector (PVD).
Applications
- IoT devices requiring low power consumption and high performance.
- Industrial automation and control systems.
- Medical devices and healthcare equipment.
- Consumer electronics such as smart home devices and wearables.
- Automotive systems, especially those requiring low power and high reliability.
Q & A
- What is the core architecture of the STM32L052K8T6D?
The STM32L052K8T6D is based on the Arm® 32-bit Cortex®-M0+ core with an integrated Memory Protection Unit (MPU).
- What is the power supply range for the STM32L052K8T6D?
The device operates from a power supply range of 1.65 V to 3.6 V.
- What are the low-power modes available on the STM32L052K8T6D?
The device features Standby, Stop, and Stop + RTC + 8 KB RAM retention modes, with current consumptions as low as 0.27 μA, 0.4 μA, and 0.8 μA respectively.
- What analog peripherals are available on the STM32L052K8T6D?
The device includes a 12-bit ADC with up to 16 channels, a 12-bit DAC with one channel, and two ultra-low-power comparators.
- What communication interfaces does the STM32L052K8T6D support?
The device supports USB 2.0 crystal-less, two USARTs, one low-power UART, up to four SPI interfaces, and two I2C interfaces.
- How many capacitive sensing channels does the STM32L052K8T6D have?
The device supports up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- What is the maximum frequency of the internal clock sources?
The device features a high-speed internal 16 MHz factory-trimmed RC oscillator and other internal multispeed low-power RC oscillators.
- Does the STM32L052K8T6D support serial wire debug?
Yes, the device supports serial wire debug for development purposes.
- What is the package type of the STM32L052K8T6D?
The device is available in an LQFP 32 (7x7x1.4 mm) package.
- Is the STM32L052K8T6D RoHS compliant?
Yes, the device is RoHS compliant and comes in ECOPACK2 packages.
