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HT2860C Datasheet(PDF) 1 Page - Holtek Semiconductor Inc |
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HT2860C Datasheet(HTML) 1 Page - Holtek Semiconductor Inc |
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1 / 9 page  HT2860 6-Sound Generator Pin Assignment General Description The HT2860 is a CMOS LSI chip designed for use in sound effect products. It can generate six sections of programmable sounds. The LSI is equipped with tone circuit and control logic to generate various sounds including door bell, alarm, melodies, etc. Users can play not only sound sections (S1~S6) by triggering a single key (K1~K6), but serial sound sections by si- multaneously triggering more than one key ac- cording to the key priority where K1 is the highest and K6 is the lowest. The customer’s sound sample is analyzed and programmed into an internal ROM by changing a mask layer during device fabrication. The HT2860 is suit- able for various toy applications. Features • Single power supply: 2.4V~4.5V • Low standby current: 1 µA (Typ.) at VDD=3V • Auto power-off function • Six different sound sections • K1 to K6 independently chosen or as a cascade control • Speaker or direct piezo application • 0.5Hz~1Hz LED flash output • Minimal external components HT2860 – 18 DIP 18 17 16 15 14 13 12 11 10 1 2 3 4 5 6 7 8 9 OUT OUT TEST1 TEST2 PWR VSS KEY1 KEY2 KEY3 VDD KEY6 KEY5 KEY4 KEY3 KEY2 KEY1 VSS HT2860 – 16 DIP OSC3 TEST3 OSC1 OSC2 OUT OUT TEST2 PWR 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 OSC2 OSC1 TEST3 LED OSC3 VDD KEY6 KEY5 KEY4 1 11th July ’97 |
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