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HT1330 Fiches technique(PDF) 5 Page - Holtek Semiconductor Inc |
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HT1330 Fiches technique(HTML) 5 Page - Holtek Semiconductor Inc |
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5 / 8 page ![]() Output Waveform HT1330 5 August 10, 2000 10 m i n u t es b ef o r e set t i m e i s u p 2 s ec 1 s ec 0 s ec 5 m i n u t e s b e f o r e s et t i m e i s u p 0 s ec 1 s ec 2 s ec Ti m e i s up 0 s ec 1 s ec 60 s ec T i m e r b u sy f l ag o u t p u t VD D VS S T i m e r i s c ount i ng up or dow n 62. 5 m s 62. 5 m s 62. 5 m s 62. 5 m s 62. 5 m s Once the set time is reached, the alarm will sound 60 seconds unless it is stopped by users (by pressing S3), in which case the preset time of the timer will remain unchanged or at 0:00 depending on the status of the option pin. Pressing any one of the inputs (S1 or S2 or S3) will stop the alarm during the period for which the alarm is sounding. At 0:00 in the timer mode, the alarm will sound when S1 and S2 are simultaneously depressed. This is for the alarm test only. After the device is powered on, the alarm will sound two seconds and all segments on the LCD display panel be illuminated. |
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