HT1330 Holtek Semiconductor Inc, HT1330 Datasheet - Page 5

• Manufacturer Part Number: HT1330
• Description: 3 1/2 Digit Timer + Watch
• Manufacturer: Holtek Semiconductor Inc

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.
Output Waveform
5
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.
August 10, 2000
HT1330