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HT86A72 Datasheet(PDF) 1 Page - Holtek Semiconductor Inc |
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HT86A72 Datasheet(HTML) 1 Page - Holtek Semiconductor Inc |
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1 / 68 page  HT86Axx/HT86ARxx A/D Type Voice 8-Bit MCU Rev. 1.10 1 December 12, 2012 General Description The devices are Voice type series 8-bit high perfor- mance microcontrollers which include a voice synthesiser and tone generator. They are specifically designed for applications which require multiple I/Os and sound effects, such as voice and melodies. They can provide various sampling rates and beats, tone levels, tempos for speech synthesisers and melody generators. They also include an integrated high quality, voltage type DAC output, an integrated series protocol interface, multi-channel A/D Converter and integrated power amplifier for speaker driving. The ex- ternal interrupt can be triggered with falling edges or both falling and rising edges. The devices are fully supported by the Holtek range of fully functional development and programming tools, providing a means for fast and efficient product devel- opment cycles. Features · HT86Axx Operating voltage: 2.0V~5.5V HT86ARxx Operating voltage: 2.2V~5.5V · System clock: 4MHz~8MHz · Crystal and RC system oscillator · 40 I/O pins · 8K´16-bit Program Memory · 384´8-bit Data Memory · 768/1536K-bit voice ROM size · 36/72 sec voice length · External interrupt input · 12-bit high quality voltage type D/A output · 4 channels 12-bit resolution A/D Converter · SPI series protocol interface · Integrated 1W power amplifier to drive 8W Speaker · Four 8-bit programmable Timer with overflow interrupt and 7-stage prescaler · One optional 32768Hz crystal oscillator for RTC time base · 8-bit counter with 3-bit prescaler · Watchdog timer function · 8-level subroutine nesting · Low voltage reset and low voltage detect function · Integrated voice ROM with various capacities · Power-down function and wake-up feature reduce power consumption · Up to 0.5ms instruction cycle with 8MHz system clock at VDD=5V · 63 powerful instructions · 44-pin LQFP and 64-pin LQFP packages Technical Document · Application Note - HA0075E MCU Reset and Oscillator Circuits Application Note |
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