HT1330 - Holtek Semiconductor Inc

HT1330 3 1/2 Digit Timer + Watch

The HT1330 is a CMOS fabricated LSI chip designed to drive a standard three and 1/2 digit biplexed LCD for a count-up/down timer in watch applications. The watch and timer are based on a 32768Hz quartz crystal oscillator. The maximum count-down time is 20 hours with an accuracy of 1 second. The maximum count-up period is 20 hours, but the LCD will normally d.

Features

·
·
·
·
·
·
· A real time watch A 20-hour adjustable range setting count-down timer 20-minute count-up display cycle time 20 hours of count-up time maximum Auto recycle or manual reset the count-down timer by bonding option Hours and minutes are set independently Real time display in timer mode
·
·
·
·
·
·
·
· 5-minute/10-minute pre-alarm DC output and piezo output An internal voltage doubler Busy flag output high in timer counting 3 1/2 digit LCD display 32768Hz crystal oscillator Single 1.5V battery operation 48L-pin QFP package General Description The HT1330 is a CMOS fabricated LSI chi.