|Working Voltage (V)||Max.CPU Speed (MHz)||Flash (Byte)||RAM (Byte)||Direct Touch I/O||Time/Counter||Audio Output||32K OSC. (Mask Option) ROSC||32K OSC. (Mask Option) X'TAL||SPI/UART||WDT (S/W Option)||LVD/LVR||Sounding Processing Unit|
|2.7~5.5||12||1M||1.5K||46||16-bit x2||14-bit Push Pull||V||V||1/-||V||V/V||8 Channels|
The GPT8P340A1, an 8-bit microprocessor, features 1M bytes OTP ROM, 1536 bytes working RAM,512 bytes AUX RAM, 46 I/Os, interrupt/ wakeup controller, two 16-bit timers, two SPI interfaces, a 14-bit DAC with push-pull amplifier for driving speaker directly. The GPT8P340A1 operates over a wide voltage range from 2.3V through 5.5V, plus Low Voltage Reset function to assure system still functions properly when power drops below certain level. The microprocessor can implement software for audio processing functional control and others. The GPT8P340A1 equips a high performance SPU voice engine to achieve 8-channel voice with ADPCM/PCM data. It can produce attractive and high resolution sound easily. Plus, it features one 14-bit DAC with push-pull amplifier for driving speaker directly. Its large memory area can be used to store both program and audio data. There is a Serial Peripheral Interface (SPI) controller built-in to facilitate communicating with other devices. Furthermore, a SLEEP (power-down) function is also built-in to extend battery life.
8-level (2.3V/2.4V/2.6V/2.9V/3.0V/3.3V/3.6V/4.0V) voltage detector