SC8562
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
ALM-1
Alarm 1 setting time =
Current time
ALM-2
Alarm 2 setting time =
Current time
RADIO
ON/OFF = VDD
(ON-state indicator: ON
state)
Sleep-in
(Sleep indicator : ON state)
Pause
Conditions
Snooze-in
Snooze-in
-
-
OFF-State Conditions
• ON/OFF =VSS
• ON/OFF = VDD
• Sleep-in
• 59 minutes after the alarm 2 is turned ON
• ALM-1 =VDD
• ON/OFF = VSS
• ON/OFF =VDD
• Sleep-in
• 59 minutes after the alarm 2 turned ON
• ALM-2 =VDD
• ON/OFF =VDD
• Power –down mode
• Sleep-in
(On-state indicator: OFF state)
• ON/OFF =VSS
• ON/OFF =VDD
• 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
VDD (20 ms min.)
OPEN
VSS (20 ms min.)
Operation
Snooze-in & seconds display mode.
• Time alarm stops functioning for 6 to 7 minutes.
• Seconds display
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.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV: 1.1 2008.04.29
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