Silan

Semiconductors

SC3610

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0

2000.12.31

7

for more than 0.5 seconds will make the digit to be advanced at a rate of 2Hz.

5) ALARM FUNTION:

--

AL OUT output pin will output an alarm frequency of 1024Hz at 0.2 sec on and 0.2 sec off.

--

AL OUT pin canbeusedtodirect driveapiezo buzzer.

--

When alarm is active, AL OUT output can be disabled by pressing the [AL-ON/OFF] key or it will turn

off automatically after 3 minutes lapse.

--

AL-SIG pinis anopendrain output (active low). Once alarm is activated, AL-SIG canbedisabledby

pressing [AL-ON/OFF] key or it will turn off automatically after one hour time lapse.

--

When [AL DISP] is pressed, alarm setting time will be displayed on the LCD and the [AL] indicator will

be on.

--

The [AL-ON/OFF] pin will toggle the [

] indicator to turn on of off the alarm function. When the

indicator is on, alarm function is on.

6) 32.768kHz crystal is used for the reference frequency.

7) After Power-on-reset (RST):

--

[HR SET] and [MIN SET] keys will be disabled.

--

[AL-DISP] KEY,[AL-ON/OFF] KEY AND AL-SIG output will be enabled.

3. After POWER-ON-SET(RST):

--

When in clock mode, it will display and start at AM 7:00.

--

segments will be turned on(LCD test mode).

4. LCD pin configuration and 0 to 9 digits segments display configuration.

Pin

Function

LCD Mapping

1

COM1

COM1

--

--

2

COM2

--

COM2

--

3

COM3

--

--

COM3

4

SEG0

kHz

MHz

5

SEG1

AL

DIG1-c

DIG1-b

6

SEG2

DIG1-d

DIG1-g

DIG1-a

7

SEG3

DP1

DIG1-e

DIG1-f

8

SEG4

DP2

DIG2-c

DIG2-b

9

SEG5

DIG2-d

DIG2-g

DIG2-a

10

SEG6

:

DIG2-e

DIG2-f

(To be continued)