SC8562

AM

PM

a

b

c

d

e

f

g

Conol

The drive phase 1. The colon always flashes at 1 Hz rate.

3. OSC circuit

By connecting a resistor and a capacitor with the CR INPUT pin, a 2.4 kHz OSC circuit is formed, The

clock signal generated by the 2.4 kHz OSC circuit is used in the following cases.

(1) Used as the clock signal for the time counter, instead of 50/60 Hz INPUT, when the power-down mode

is entered.

(2) Alarm sound (1200Hz or 600 Hz) at the alarm signal output mode.

(3) 1/25 duty clock signal while the dimmer is in operation.

4. Power-Down Mode

(1) Since the backup OSC circuit holds the current time, the SC8562 starts operating immediately.

(2) The snooze function stops operating.

(3) The RADIO pin is brought to the OFF state.

(4) The control input is inhibited (except the following).

• OFF INPUT

• ALARM/SLEEP TIME SET INPUT at the time setting enable mode

5. Alarm

The SC8562 contains two alarms on a 24-hour basis.

Alarm 1….. Superposition of 600 Hz and 1 Hz

Alarm 2 …. Superposition of 1200 Hz and 1 Hz

6-minutes snooze

The alarm output duration time is 59 minutes. The 59-minute duration counter is common to the alarm 1,

alarm 2, and sleep timer.

6. Time Setting, Dimmer

The 3-level input TIME_SET pin provides the following operations.

TIME_SET pin Input

Operations

AC(50/60 Hz or more)

Fast-up

DC(20 ms min.)

Slow-up

OPEN

No operation

AC(50/60 Hz or more)

Fast-down

DC(20 ms min.)

Slow-down

Setting Contents

①

Fast-up/down

50/60 Hz rate

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

REV: 1.1

2008.04.29

Http://www.silan.com.cn

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