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HT2844P Scheda tecnica(PDF) 1 Page - Holtek Semiconductor Inc |
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HT2844P Scheda tecnica(HTML) 1 Page - Holtek Semiconductor Inc |
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1 / 18 page  HT2844 4-Sound Generator Pin Assignment Pad Assignment Chip size: 81 × 67 (mil)2 * The IC substrate should be connected to VDD in the PCB layout artwork. Features • Single power supply: 2.4V~3.3V • Low standby current: 1 µA (Typ.) at VDD= 3V • Auto power-off function • Eight different sound sections • Speaker or direct piezo application • LED flash drive output • Minimal external components General Description The HT2844 is a CMOS LSI chip designed for use in sound effect products. It is equipped with tone circuit, noise circuit, and other control logic to generate various sounds including rifle fire, machine gun, booming, door bell, Alarm, and so forth. Customer’s supplied sound source can be analyzed and programmed into an inter- nal ROM by changing a mask layer during de- vice fabrication. The HT2844 is suitable for various toy applications. 1 11th July ’97 |
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