SC8562
DIGITAL ALARM CLOCK WITH LED DRIVER
DESCRIPTION
The SC8562 is alarm equipped digital clock IC with built-in
drivers capable of directly driving LED display equipment.SC8562
has features such as easy setting, two alarms and can be used at
a wide operating voltage range.
FEATURES
* Duplex LED display (SC8560-use LED panel usable)
* Two alarms on chip (600Hz, 1200Hz)
* Up, down /fast, slow time setting available (easy setting)
* 12/24-hour mode, 50/60 Hz selectable (provided that it is
impossible to select the combination of 24-hour mode and 60
Hz)
* On–chip CR oscillator for backup use at the time of power
failure
* Power failure indicator
* 59-minute alarm/sleep timer
* 6-minute snooze function
* Radio output function
* P-channel ED MOS
* Pin 28 dual-in-line shrink package
* Wide operating voltage/operating temperature range
V
DD
=-14 to -8V/ -20 to +70°C
SDIP-28-400-1.778
ORDERING INFORMATION
Device
SC8562
Package
SDIP-28-400-1.778
APPLICATIONS
* Alarm clocks
* Clock-radios
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV: 1.1
2008.04.29
Page 1 of 10
SC8562
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
(T
amb
=25°C, V
ss
=0V)
Characteristics
Supply Voltage
Input Voltage
Output Voltage
Allowable Power Dissipation
Operating Temperature
Storage Temperature
Symbol
V
DD max.
V
IN
V
OUT
P
d max
T
opr
T
stg
T
amb
=70°C
Condition
Value
-17.0 ~ + 0.3
-17.0 ~ + 0.3
-17.0 ~ + 0.3
700
-20 ~ +70
-55½+125
Unit
V
V
V
mW
°C
°C
ALLOWABLE OPERATING CONDITIONS
(T
amb
=-20 to 70°C, V
SS
=0V)
Characteristics
Supply Voltage
Standby Voltage
Input High-Level Voltage 1
Input Low-Level Voltage 1
Input High-Level Voltage 2
Input Low-Level Voltage 2
Input High-Level Voltage 3
Input Mid-Level Voltage
Input Low-Level Voltage 3
Symbol
V
DD
V
ST
V
IH1
V
IL1
V
IH2
V
IL2
V
IH3
V
IM
V
IL3
3-level input pins
V
SS
-0.7
1/2 V
DD
-1
V
DD
CR OSC pin
V
SS
-1
AC input pin
V
SS
-1
Test conditions
Min.
-14.0
Typ.
Max.
-8
-7.5
V
SS
V
DD
+2
V
SS
V
DD
+2
V
SS
1/2 V
DD
+1
V
DD
+1
Unit
V
V
V
V
V
V
V
V
V
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV: 1.1
2008.04.29
Page 2 of 10
SC8562
Characteristics
Input High-Level Voltage 4
Input Low-Level Voltage 4
Input Level Hold Time
Input Chattering Time
Symbol
V
IH4
V
IL4
t
H
t
C
10
10
Test conditions
Input pins other than the above
Min.
V
SS
-2
Typ.
Max.
V
SS
V
DD
+2
Unit
V
V
ms
ms
ELECTRICAL CHARACTERISTICS
(T
amb
=25±2°C, V
SS
=0V, V
DD
=-12V)
Characteristics
Output High-Level Current 1
Output OFF-State Leakage
Current 1
Output High-Level Current 2
Output OFF-State Leakage
Current 2
Output High-Level Current 3
Output OFF-State Leakage
Current 3
Operating Frequency
Input High Level Current 1
Input Low Level Current 1
Input High Level Current 2
Input Low Level Current 2
Input High Level Current 3
Input Low Level Current 3
Pull-Down Resistance
Pull-Up Resistance
Operating Current
Power Failure Detect Circuit
OSC Stability
OSC Accuracy
OSC Frequency
Symbol
I
OH1
I
OF1
Test conditions
AM&10’SHR ad & eg pin,
V
OUT
=V
SS
-2.0V
V
OUT
= V
DD
Segment output pins other
I
OH2
than the above,
V
OUT
=V
SS
-2.0V
I
OF2
I
OH3
I
OF3
f
op
I
IH1
I
IL1
I
IH2
I
IL2
I
IH3
I
IL3
RPD
RPU
I
DD
V
BU
f
S
f
A
f
OSC
V
DD
=-9V±10%
V
DD
=-9V
R=180KΩ, C=3300pF
R=260KΩ, C=3300pF
V
OUT
= V
DD
ALM-1, ALM-2, RADIO pin,
V
OUT
=V
SS
-2.0V
V
OUT
= V
DD
AC INPUT pin
V
IH
=V
SS
V
IL
=V
DD
CR OSC pin, V
IH
=V
SS
V
IL
=V
DD
3-level input pins, V
IH
=V
SS
V
IL
=V
DD
3-level input pins, V
IN
=1/2V
DD
V
IN
=1/2V
DD
Output :no load
2
-7.5
-10
-10
3600
2400
20
-120
1.0
0.8
8
-5.0
10
10
15
60
120
-20
-10
10
DC
2
10
2000
10
20
μA
mA
μA
Hz
μA
μA
μA
μA
μA
μA
MΩ
MΩ
mA
V
%
%
Hz
16
(Note1)
mA
Min.
32
Typ.
Max.
(Note1)
20
Unit
mA
μA
Note1:
The allowable segment current drain is 78mA max. for AM & 10’SHR ad & eg and 39mA max. For other
than AM & 10’SHR ad & dg in the range of power dissipation 700 mW.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV: 1.1
2008.04.29
Page 3 of 10
SC8562
PIN CONFIGURATIONS
PIN DESCRIPTION
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Pin Name
AM & 10’ SHR ad & eg
PM & 10’ SHR b
10’SHR c & HR e
HR g & b
HR d & c
HR f & a
10’ SMIN a & f
10’ SMIN b & g
10’ SMIN c & d
10’ SMIN e & MIN e
MIN g& b
MIN d & c
MIN f & a
COLON
V
SS
CR OSC
SPEED/PD
RADIO
Description
Drive AM 10’sSHR segment and 10’SHR segment.
Drive PM and 10’SHR b segment.
Drive HR e and 10’SHR c segment.
Drive HR g and HR b segment.
Drive HR d and HR c segment.
Drive HR f and HR a segment.
Drive 10’SMIN a and 10’SMIN f segment.
Drive 10’SMIN b and 10’SMIN g segment
Drive 10’SMIN c and 10’SMIN d segment.
Drive MIN e and 10’ SMIN e segment.
Drive MIN g and MIN b segment.
Drive MIN d and MIN c segment.
Drive MIN f and MIN a segment.
Colon output
V
SS
=0V
Oscillator input/output port, connected external capacitor and resistor.
SPEED/Power down control pin. When connect to V
DD
, select power-down
mode; and if connect to V
SS
, test mode is selected. Select normal mode in
open state.
Radio output pin.
REV: 1.1
2008.04.29
Page 4 of 10
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
SC8562
No.
19
20
21
22
23
24
25
26
Pin Name
ALM_1
ALM_2
ALM_SEL
TIME_SET
ON/OFF
SLEEP/SNOOZE
AC INPUT
MODE_SEL
LED Display mode select pin 1
Time set pin.
Pin controlling alarm and radio output state
LED Display mode select pin 2
Built-in Schmidt circuit enables noise elimination at 50/60Hz commercial
frequencies with use of a simple CR filter, Built-in pull-up resistor.
Mode select pin. If connect to V
DD
, select 12H &60Hz mode; if connect to V
SS
,
select 24H&50Hz mode; if open, then select 12H &50Hz.
Time setting enable and dimmer display control pin. If connect to V
DD
, time
27
TIME_SET_EN/DIM
setting enable and LED display normally; If connect to VSS, time setting inhibit
(except alarm setting) and LED dimmer display; if open, time setting inhibit
and LED display normally.
28
V
DD
Negative power supply.
Description
Alarm output pin, when connect to V
DD
, alarm is turned off.
DISPLAY MODE
Select Pin
ALM_SEL
OPEN
V
DD
V
SS
OPEN(V
DD
,V
SS
)
OPEN(V
DD
,V
SS
)
SLEEP/SNOOZE
OPEN
OPEN
OPEN
V
SS
V
DD
Display
Mode
Time display
Alarm 1
Alarm 2
Sleep
Second
display
1
AM/PM
10’s hour
AM/PM
10’s hour
AM/PM
10’s hour
Unlit
Unlit
2
Hour
Hour
Hour
0
Minutes
Digit No,
3
10’s
minutes
10’s
minutes
10’s
minutes
10’s
minutes
10’s
seconds
4
Minutes
Minutes
Minutes
Minutes
Seconds
FUNCTION DESCRIPTION
1.
Segment Output
The duplex LED panel can be direct driven by 13 segment output pins.
Compatible with SC8560-use LED panel)
2.
Colon Output
LED panel
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV: 1.1
2008.04.29
Page 5 of 10
FPGA/CPLD
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
