LS

LS3811

3 Keys Clock With 5 Daily Alarm

Version 1.1 (2005.06.03)

1

General Description

This is a low cost single chip 3 keys clock with 5 daily alarm.

Features:

*

Operating voltage 1.5V

* Low power consumption

* Hour Minute display for different mode.

* On-chip, 4-digit, 1/3 duty cycle, 1/2 bias, LCD driver.

* LCD bias level: 0.0V, 1.5V, 3.0V.

* On chip 32768Hz crystal.

* Daily Alarm - It generates a sound (4KHz x 8Hz x 1Hz) for 60 seconds. Pressed any

key to stop it.

* Chime Function - Every hour on the hour, beep (4KHz x 4Hz x 1Hz) for 1 second.

* 4KHz on-chip buzzer output driver to give alarm sound and beep tone.

* Bonding option of alarm non-stop until user disable.

* Bonding option of 12/24 hour format display.

* Bonding option of max. 2 -- 5 selectable daily alarm time.

LCD display