ElectronicsThe CH554G is a microcontroller manufactured by Qin Heng Electronics in a WCH SOP-16_150mil RoHS package. This package is a standard surface-mounted package with a 150mil pin pitch and is RoHS compliant. It features an 8-bit RISC microcontroller with an embedded 8K Flash memory, 128 bytes of RAM, 18 I/O pins, 32 kHz timer input / output (CT0/CT1) and two 16-bit timer/counter (T2,T3) for general-purpose timer applications. The CH554G also has an enhanced SFRs architecture providing functions such as serial port programmable control registers, oscillator control registers, UART protocol control registers, timer/counter control registers, and interrupt control registers. The MCU is suitable for applications such as smart cards and other low power embedded products.