sc8562 Silan, sc8562 Datasheet - Page 6

• Manufacturer Part Number: sc8562
• Description: Digital Alarm Clock With Led Driver
• Manufacturer: Silan

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HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
alarm 2, and sleep timer.
OSC circuit
clock signal generated by the 2.4 kHz OSC circuit is used in the following cases.
Power-Down Mode
Alarm
Time Setting, Dimmer
The SC8562 contains two alarms on a 24-hour basis.
The alarm output duration time is 59 minutes. The 59-minute duration counter is common to the alarm 1,
The 3-level input TIME_SET pin provides the following operations.
Setting Contents
(1) Used as the clock signal for the time counter, instead of 50/60 Hz INPUT, when the power-down mode
(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.
(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).
By connecting a resistor and a capacitor with the CR INPUT pin, a 2.4 kHz OSC circuit is formed, The
Alarm 1… .. Superposition of 600 Hz and 1 Hz
Alarm 2 … . Superposition of 1200 Hz and 1 Hz
6-minutes snooze
is entered.
Fast-up/down
OFF INPUT
ALARM/SLEEP TIME SET INPUT at the time setting enable mode
OPEN
V
V
DD
SS
TIME_SET pin Input
The drive phase 1. The colon always flashes at 1 Hz rate.
AC(50/60 Hz or more)
DC(20 ms min.)
AC(50/60 Hz or more)
DC(20 ms min.)
AM
PM
50/60 Hz rate
e
f
a
g
d
Fast-up
Slow-up
No operation
Fast-down
Slow-down
c
b
Conol
Operations
REV: 1.1
Page 6 of 10
SC8562
2008.04.29