SC8562

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

REV: 1.1

2008.04.29

Http://www.silan.com.cn

Page 7 of 10

②

Slow-up/down

Immediately incremented/decremented

± 1 and counted up/down at a 2 Hz rate 0.5

to 1.0 second later

7. ON/OFF Pin

The 3-level input ON/OFF pin acts on the ALM-1, 2 RADIO pins as shown below.

Output Pin

ON-State Condition

Pause

Conditions

OFF-State Conditions

ALM-1

Alarm 1 setting time =

Current time

Snooze-in

• Sleep-in

• 59 minutes after the alarm 2 is turned ON

ALM-2

Alarm 2 setting time =

Current time

Snooze-in

• Sleep-in

• 59 minutes after the alarm 2 turned ON

(ON-state

indicator:

ON

state)

-

• Power –down mode

• Sleep-in

(On-state indicator: OFF state)

RADIO

Sleep-in

(Sleep indicator : ON state)

-

• Power-down mode

(Sleep indicator : OFF state)

8. Sleep, Snooze Timer

The 3-level input SLEEP/SNOOZE pin operates as shown below.

SLEEP/SNOOZE Pin Input

Operation

Snooze-in & seconds display mode.

• Time alarm stops functioning for 6 to 7 minutes.

• Seconds display

OPEN

No operation

Sleep mode

• The sleep counter is set to operate for 59 minutes.

• Counted down automatically at a 2 Hz rate 1.5 to 2.0 seconds later

• Fast/slow, up/down time setting available

9. 50/60HZ Input

Internal Schmitt flip-flop can remove the noise in AC.