HT84192

HT84XXX Magic VoiceTM Features · · · · · · · · · Operating voltage: 2.4V~5.0V Programmable tone melody generator ADPCM or m-law PCM, PCM synthesis Wide range of sampling rate for voice synthesis Minimum sampling rate step: 100Hz Voice melody mixed output Programmable 2 channels of melody mixed output Programmable 2 channels of voice mixed output 13 kinds of melody beats · · · · · · · · · · · 5 octaves of tone level and 18 tempos 16 levels of digital volume control Two current type D/A outputs Eight programmable I/O pins Four programmable input pins Provides 36 sec to 384 sec of voice capacity Timer controller Voice fill-in function Powerful user-defined functions Power-on initial setting 28-pin SKDIP package Applications · · High-end educational leisure products Alert and warning systems · Speech synthesizers and sound effect generators General Description The HT84XXX family is a series of programmable speech synthesizers and tone generators designed for user-defined voice and melody applications. It provides various sampling rates and beats, tone levels, tempos for the speech synthesizer and melody generator. The HT84XXX series has two built-in high quality, current type D/A outputs with 16 levels of volume control. The user¢s commands enable the user to program the powerful custom function such as to build-in a tiny controller. The Magic VoiceTM provides various operational functions similar to arithmetic operation, logic operation, branch decision, random counter, ...