|Working Voltage (V)||Max.CPU Speed (MHz)||ROM (Word)||RAM (Nibble)||I/O||Audio Output (PWM)||H/W Channel (SPU)||Volume Control||CPU CLK OSC. ROSC (Option)||LVR||OTP|
GPC74080B, a 4-bit architecture sound controller, is embedded with a 4-channel SPU which supports MIDI playing, 4-bit RISC CPU, 14-bit PWM, 8 IOs, RAM with 256 nibbles, ROM with 64Kx12-bit. The operating voltage ranges from 2.0V through 5.5V and the CPU operating speed is 1M/2MHz, optional by inner oscillator. Other features include Low Voltage Reset, IR carry output, Watchdog, 5 interrupt sources with two TimeBases, etc.