HT827A0
Features
8-bit microcontroller
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Operating voltage: 2.4V~5.2V 8K´16 program ROM 208´8 data RAM 36 bidirectional I/O lines Interrupt input 16-bit programmable timer/event counter with overflow interrupts Watchdog timer On-chip crystal or RC types of oscillator
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- Halt function and wake-up feature reduces power consumption 63 powerful instructions Up to a 1ms instruction cycle with a 4MHz system clock at VDD=5V All instructions in 1 or 2 machine cycles 16-bit table read instruction 8-level subroutine nesting Bit manipulation instruction
Voice and melody synthesizer
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- 128K´8 voice ROM 3/4 bit ADPCM coding algorithm 26 kinds of voice sampling rates Tone level of 4 octaves 14 kinds of melody beats
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Current type of D/A switch output Tone generator counter Controllable volume 48-pin DIP package
Applications
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- Intelligent educational toys High end toy controllers Talking alarm clocks
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- Alert and warning systems Public address...
