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 |
---|---|---|---|---|---|---|---|---|---|---|
2.0~5.5 | 2 | 160K | 256 | 16 | V | 4 | V | - | V | V |
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.