U1114F

U1114F is a 32-bit microcontroller family designed for embedded applications. Developed by Arcadia Microelectronics, it targets low- to mid-range IoT devices and consumer electronics. The base U1114F core is a Cortex-M4-compatible processor with optional floating-point unit, operating at up to 100 MHz. Memory configurations include 64 KB to 256 KB of flash and 8 KB to 64 KB of RAM, with options for onboard EEPROM in some variants.

Peripherals include USART/UART, SPI, I2C, USB 2.0 Full-Speed, 12- to 16-bit ADCs, PWM outputs, and a CAN 2.0B interface on select models. On-chip peripherals also include a hardware crypto accelerator and true random number generator in security-focused variants, plus a flexible clock and power management unit for low-power operation.

Packages range from 32- to 64-pin LQFP and QFN form factors, with support from vendor-provided hardware evaluation boards. A memory-mapped peripheral bus and CMSIS-compliant software interface facilitate development.

Development is supported by GCC-based toolchains, CMSIS, and a vendor software package with libraries for common communication protocols and middleware. Debugging uses SWD, and there are reference designs for sensor nodes, wearable devices, and home automation modules.

History: The U1114F was introduced in 2020, with subsequent revisions adding crypto features and increased memory. The family is used in hobbyist and commercial products, especially where power efficiency and moderate performance are important.

See also: ARM Cortex-M-series, microcontroller, embedded system, low-power MCU.