LSI LS 3263
6 Dot Animation 4 Digit Alarm Clock With Calendar
Features:
(a) Single 1.5V operating voltage.
(b) Directly driving 2x14 segment LCD.
(c) 3 display functions: Clock(12 hour format), date and second.
(d) 32768 Hz quartz crystal provide the time base, and machine cycle = 4KHz.
(e) Power on reset: When the power up, all LCD segments and the alarm sound
are turned on for one second.
(f) Programmable reset: When “ M ” key and “ S ” key press together, all LCD
segments and it generates a sound(4KHz x 8Hz x 1Hz)
with external trigger function. It will be stop and return
to normal clock mode until release all keys..
(g) Low power dissipation.
(h) Key tone : It will generate a sound signal (tone) when only one key is pressed.
(i) Bonding option to select total numbers of dots(3, 4, 5 and 6 dots)
(j) Animation of dots with 3 bonding option :
One by one[off, 1, 2, 3, 4, 5, 6, off, 1, 2, 3, ….].
Accumulated[off, 1, 1+2, 1+2+3, 1+2+3+4, …. 1+2+3+4+5+6, off, 1, ..].
Special pattern[off, 1+2, 2+3, 3+4, 4+5, 5+6, off, 1+2, …]
(k) Keys: “ M ” --- Mode (mode and adjust), “ S ” --- setting.
General Description
The LS3263 is a single chip CMOS timer circuit with new animation watch I.C. It is
designed to direct drive a LCD. The timer circuit is based on a 32768Hz quartz crystal
controlled oscillator. An oscillator capacitor is build in the chip. An external 32768Hz
quartz crystal is required to complete the oscillator circuit. The operation of the basic
timekeeping functions is controlled via two keys. When power up reset, the clock will be
reset to 1.1 12:00 and 00 seconds(12 hour format). The circuit has a built-in voltage doubler
(to drive the LCD ) which needs two external capacitors. Only one 1.5V battery is required
to power the entire circuit.
LSI LS 3263
6 Dot Animation 4 Digit Alarm Clock With Calendar
LCD Drawing
Functional Description
(a) After the power on, it switch into clock state and shows
“12:00”(12 hour format). The default value “1 Jan 12:00:00”.
(b) It shows 12 hour format and four group of “Hour/minute”, “Alarm
time”, “Month/date”, and “second”. In clock state, “Hr : Min”
is shown with colon flashing 0.5 sec on and 0.5 sec off. Press “M”
key to indicate the “Alarm time” (if no key is pressed for 5
seconds, it will auto return to clock state “Hr : Min”), press
“M” key again to indicate the “Month/date” (if no key is pressed
for 5 seconds, it will auto return to clock state “Hr : Min”).
Press again to show the “second”. It can be clear by pressing
“S” key. It will stay in second indication until return to clock
state by pressing “M” key (the colon always on and not flash in
second state, it only flash in clock state “Hr : Min”).
(c) In normal state, press “S” key into the clock setting state. The
first setting is alarm option (alarm on/off or chime on/off), it can
be change by pressing “M” key. Press “S” key to alarm hour
setting, it can be set cycling from “12: A”(12 hour format) to
“11: A”(12 hour format), “12: P”(12 hour format) to “11: P”(12
hour format) by pressing “M” key. Hold(2 sec) the “M” key will
have auto advance. Press “S” key to alarm minute setting, it can
be set from 0 to 59 by pressing “M” key. Hold (2 sec) the “M”
key will have auto advance. Press “S” key to return normal mode
(with alarm setting) or month setting (without alarm setting), it
can be set from 1 to 12 by pressing “M” key. Hold (2 sec) the