TC94A39FAG/FB is a 1-chip CD processor from Toshiba that includes a LCD driver, a 4-channel 6-bit AD converter, a 2-wire, 3-wire serial interface, a 1-system, 2-channel UART-compatible serial interface, a buzzer, a 20-bit general-purpose counter function, interrupt function, and an 8-bit timer counter. The CPU has 4 working clocks, including 16.9344 MHz, 75 kHz, 32.768 kHz crystal oscillator, and CR oscillator, and the interface with the CD processor is easy.
