The STM32L442KC devices are the ultra-low-power microcontrollers based on the high-performance Arm® Cortex®-M4 32-bit RISC core operating at a frequency of up to 80 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision which supports all Arm® single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security. The STM32L442KC devices embed high-speed memories (256 Kbyte of Flash memory, 64 Kbyte of SRAM), a Quad SPI flash memories interface and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix. The STM32L442KC devices embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, proprietary code readout protection and Firewall. The devices offer a fast 12-bit ADC (5 Msps), two comparators, one operational amplifier, two DAC channels, a low-power RTC, one general-purpose 32-bit timer, one 16-bit PWM timer dedicated to motor control, four general-purpose 16-bit timers, and two 16-bit low-power timers. In addition, up to 3 capacitive sensing channels are available. They also feature standard and advanced communication interfaces. The STM32L442KC devices embed AES hardware accelerator. The STM32L442KC operates in the -40 to +85 °C (+105 °C junction), -40 to +105 °C (+125 °C junction) and -40 to +125 °C (+130 °C junction) temperature ranges from a 1.71 to 3.6 V power supply. A comprehensive set of power-saving modes allows the design of low-power applications. Some independent power supplies are supported: analog independent supply input for ADC, DAC, OPAMP and comparators The STM32L442KC family offers a single 32-pin package. https://elecena.pl/product/16977623/stm32l442kcu6-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-256-kbytes-of-flash-memory-usb-aes-256-dfsdm 2020-06-18 https://elecena.pl/product/16977623/stm32l442kcu6-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-256-kbytes-of-flash-memory-usb-aes-256-dfsdm 2021-04-04 https://elecena.pl/product/16977623/stm32l442kcu6-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-256-kbytes-of-flash-memory-usb-aes-256-dfsdm 2021-05-21 https://elecena.pl/product/16977623/stm32l442kcu6-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-256-kbytes-of-flash-memory-usb-aes-256-dfsdm 2021-12-05 https://elecena.pl/product/16977623/stm32l442kcu6-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-256-kbytes-of-flash-memory-usb-aes-256-dfsdm 2022-01-21 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