The IAP15W4K58S4-30I-LQFP64L is a microcontroller unit (MCU/MPU/SOC) manufactured by STC. It is a low-power, low-voltage, LQFP-64 (14x14) package with ROHS compliance. This device features an ARM Cortex-M0 Core and incorporates 1 kB RAM, 4 kB Flash, 512 bit one-time programmable ROM and supports I2C, UART, SPI, PWM, Wake-up Timer and more interfaces, allowing for quick and easy setup. It operates at voltage levels between 1.8V and 3.3V and features 25MHz frequency.