HT37A70 Datasheet | Holtek Semiconductor

HT37A70/60/50/40/30/20 8-Channel Music Synthesizer MCU Technical Document - Application Note - HA0075E MCU Reset and Oscillator Circuits Application Note Features - Operating voltage: 3.6V~5.5V (HT37A70/60) 3.3V~5.5V (HT37A50/40) 2.4V~5.5V (HT37A30/20) - Operating frequency: 11.059MHz - Oscillation modes for the Oscillator clock f OSC: Crystal (11.059MHz) 1-pin RC oscillation typ. 11.059MHz - Built-in 8-bit MCU (HT-8) with 320´8 bits RAM - Built-in 32K´16-bits to 256K´16-bits ROM for program/data shared - Eight-level subroutine nesting - Two 8 bit timer and one 16 bit timer - Watchdog timer - Power-down and Wake-up Features for power saving operation - 16-bit table read instructions for any bank/page read - Support 16 to 28 bidirectional I/O lines - Integrated 2-ch stereo or 1-ch mono 16-bit DAC converter - Integrated power Amplifier - Integrated 8-channel 12-bit A/D converter - Eight channel polyphonic synthesizer - Low voltage reset (Tolerance ± 10%) - External interrupt INT - External 2 Timer clock input - 4 or 8 touch switch input - ADPCM decoder - Bit manipulation instructions - 63 powerful instructions - All instructions in 1 or 2 machine cycles General Description The device is an 8-bit high performance RISC architecture microcontroller specifically designed for various Music and ADPCM applications. It provides an 8-bit MCU and 8-channel Wavetable synthesizer. It has a in- tegrated 8-bit micro controller which controls the synthesizer to generate the melody by setting the special register. A Power-down function is included to reduce power...