STM32L432KCU3

The STM32L432KCU3 is an ultra-low-power microcontroller from STMicroelectronics that is part of the STM32L4 series. It features a 32-bit ARM Cortex-M4 processor and is designed for use in a wide range of low-power applications, including wearables, IoT devices, and battery-powered sensors.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

• PA0-PA15: General purpose I/O pins
• PB0-PB15: General purpose I/O pins
• PC0-PC15: General purpose I/O pins
• PD0-PD15: General purpose I/O pins
• PE0-PE15: General purpose I/O pins
• PF0-PF15: General purpose I/O pins
• PG0-PG15: General purpose I/O pins
• PH0-PH1: General purpose I/O pins
• PSWCLK: Port output value in SWD clock mode
• PSWDIO: Serial wire debug data input/output
• PRESET: Reset input, low level reset
• PNOE: Output enable for PSRAM addressing
• PADDR0-PADDR22: Address bus for PSRAM addressing
• PAD_N: Specific address for NOR Flash
• PQSPI_CLK, PQSPI_NCS, PQSP_BK1_IO0-PQSP_BK1_IO3: External PSRAM and/or NOR Flash supporting quad-SPI (QSPI) interface pins
• PA13-PA14: USB DM and DP pins
• VDD and VSS: Positive and negative power supply

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the STM32L432KCU3 microcontroller for a visual representation.

Key Features

• Ultra-Low-Power: The STM32L432KCU3 features a wide range of power-saving options and contains an integrated voltage regulator that provides a supply voltage down to 1.71V.
• High Performance: With its 32-bit ARM Cortex-M4 processor, the STM32L432KCU3 provides high performance for various embedded applications.
• Rich Peripherals: The STM32L432KCU3 includes multiple communication interfaces, including USB, I2C, SPI, and UART, along with other peripherals such as ADC, DAC, and timers.
• Flexible Memory Options: The STM32L432KCU3 offers a range of memory options, including up to 256KB of flash memory, 64KB of SRAM, and support for external memory such as PSRAM and NOR Flash.
• Intuitive Development Environment: With the STM32CubeIDE software development environment, it is easy to create and debug applications for the STM32L432KCU3.

Note: For detailed technical specifications, please refer to the STM32L432KCU3 datasheet.

Application

• Wearables: The STM32L432KCU3's low-power and high-performance characteristics make it ideal for use in wearable devices, including health monitoring devices, smartwatches, and activity trackers.
• IoT Devices: With its rich communication interfaces and flexible memory options, the STM32L432KCU3 is well-suited for various IoT applications, including home automation, smart sensors, and more.
• Battery-Powered Sensors: The STM32L432KCU3's ultra-low-power capabilities make it an excellent choice for battery-powered sensors and other low-power applications.

Functionality

The STM32L432KCU3 is an ultra-low-power microcontroller that features a 32-bit ARM Cortex-M4 processor. It is designed to provide high performance and rich features in a compact and power-efficient package, making it ideal for various embedded applications.

Usage Guide

• Power Supply: Connect VDD (Pin 19) to the positive power supply and VSS (Pin 20) to ground.
• I/O Pins: Use the I/O pins (PAx-PGy) for general purpose input/output operations, including communication interfaces, timers, and other peripherals.
• USB Interface: Use pins PA13 and PA14 for USB data communication, in addition to USB power supply.

Frequently Asked Questions

Q: What is the maximum operating frequency of the STM32L432KCU3?
A: The STM32L432KCU3 operates at a maximum frequency of 80MHz.

Q: What is the lowest voltage that the STM32L432KCU3 can operate at?
A: The STM32L432KCU3's integrated voltage regulator provides a supply voltage down to 1.71V.