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1618-D16-T Datasheet(PDF) 2 Page - Unisonic Technologies |
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1618-D16-T Datasheet(HTML) 2 Page - Unisonic Technologies |
2 / 5 page 1618 CMOS IC UNISONICTECHNOLOGIESCO.,LTD 2 of 5 www.unisonic.com.tw QW-R502-007.E PIN CONFIGURATION 1 2 3 4 5 6 7 8 GND S1 S2 S6 S4 S5 S3 VDD UTC 1618 16 15 14 13 12 11 10 9 INI NC BZ1 BZ2 OSC1 OSC2 NC NC PIN DESCRIPTIONS PIN # PIN NAME I/O DESCRIPTION 1 VDD - Power supply pin (+). 2 S3 I 3 S5 I 4 S4 I 5 S6 I 6 S2 I 7 S1 I Sound selection keys. These keys connect with internal pull-down resistors. The sound output will be enabled when a key is connected to VDD. On other hands, the sound output will be disabled if a key is N.C. or connected to GND. When two or more keys are selected in the same time, the sound will be generated in cycling sequence. According to the priority of the keys, the proirity of S1~S6 list below : S1>S2>S6>S4>S5>S3. 8 GND - Power supply pin (-). 9 INI I An internal pull-up resistor. Might disable BZ1, BZ2, when connected to GND. 10 NC - No connecting. 11 BZ1 O 12 BZ2 O Audio output pins. 13 OSC1 O 14 OSC2 I Oscillator pin with external resistor. 15 NC - No connecting. 16 NC O No connecting. |
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