UTCLM8560 [UTC]
MOS IC; MOS IC
| 型号： | UTCLM8560 |
| 厂家： | 
Unisonic Technologies |
| 描述： | MOS IC |
| 文件： | 总9页 (文件大小：177K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UTC LM8560
MOS IC
DIGITAL ALARM CLOCK
DESCRIPTION
The LM8560 is alarm equipped digital clock IC with built-in
driver capable of directly driving LED display equipment. As IC
himself the VDD pin for the LM8560 is graded to withstand a
voltage of 15V.
FEATURES
*Single chip P-channel ED MOS LSI
*LED direct drive using time division (duplex configuration)
*Wide operating power supply voltage range
*Built-in alarm function with 24-hour control
*Supports changeover between 12-hour AM/PM and 24-hour
displays
SDIP-28
*Built-in battery backup CR oscillator
*Users 50Hz or 60Hz as standard frequency
*Built-in automatic fast forward function for hour and minute
settings
*Built-in sleep timer function (maximum intervals of 59 minutes
or 1 hours and 59 minutes)
*Built-in snooze function supporting repeat use
*Equipped with power failure display function
*900Hz output for alarm tone
FUNCTIONS
*Current time display
*Snooze alarm function
*Sleep timer function (maximum intervals of 59 minutes or 1
hours and 59 minutes)
APPLICATIONS
*Alarm clocks
*Clock radios
UTC UNISONIC TECHNOLOGIES CO., LTD.
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UTC LM8560
MOS IC
PIN CONFIGURATIONS
AM& 10'S HR
ag&de
28
27
1
2
12/24 HR Select
CR Input
PM& 10'S HR b
26
25
24
50/60 Hz Select
50/60 Hz Input
Snooze Input
Sleep Display
Hour Set
3
4
10'S HR c& HR e
HR b&g
HR c&d
HR a&f
5
6
23
22
21
10'S MIN a&f
10'S MIN b&g
7
8
LM8560
Minute Set
20
19
9
VDD
10'S MIN c&d
10'S MIN e &Min e
MIN b&g
Alarm Display
10
11
18 Alarm OFF
17
MIN c&d
MIN a&f
12
13
Sleep Output
16
15
Alarm Output
VSS
14
Colon Output
ABSOLUTE MAXIMUM RATINGS (Ta=25°C, Vss=0V)
PARAMETER
Maximum Supply Voltage
Input Voltage1
SYMBOL
VDD (max)
VIN1
TEST CONDITIONS
RATING
-15~ +0.3
-15~ +0.3
-15~ +0.3
-15~ +0.3
-0.4 ~+0.4
700
UNIT
V
V
V
V
mA
mW
°C
°C
50/60Hz Input
Except 50/60Hz Input
Input Voltage2
VIN2
Output Voltage
VOUT
lIN
PD (max)
Topr
Tstg
Input Clamp Current
Allowable Power Dissipation
Operating Temperature
Storage Temperature
50/60Hz Input
Ta=70°C
-30 ~ +70
-55 ~ +125
ALLOWABLE OPERATING RANGES (Ta=25°C, Vss=0V )
PARAMETER
Supply Voltage
SYMBOL
VDD
TEST CONDITIONS
MIN.
-14
-1
TYP. MAX.
UNIT
-7.5
V
V
V
V
V
V
Input “H” Level Voltage1
Input “L” Level Voltage1
Input “H” Level Voltage2
Input “L” Level Voltage2
50/60Hz Input Pin Input
Voltage
VIH1
VIL1
VIH2
VIL2
50/60Hz Input
50/60Hz Input
Except 50/60Hz Input
Except 50/60Hz Input
VDD+2
VDD+2
-1.5
VAC-IN Sets VSS as Reference
VLED
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UTC LM8560
MOS IC
ELECTRICAL CHARACTERISTICS (Ta=25°C, VDD=-12V unless otherwise specified)
PARAMETER
SYMBOL
IIH1
TEST CONDITIONS
50/60Hz Input, VIN=VSS
MIN.
TYP. MAX.
UNIT
µA
Input “H” Level Current 1
Input “L” Level Current 1
Input “H” Level Current 2
10
10
20
IIL1
50/60Hz Input, VIN=VDD
Input Pins Other Than 50/60Hz Input
VIN=VSS
µA
IIH2
µA
Input “L” Level Current 2
Output “H” Level Current 1
Output Leakage Current 1
Output “H” Level Current 2
Output Leakage Current 2
Output “H” Level Current 3
Output Leakage Current 3
IIL2
IOH1
IOF1
IOH2
IOF2
IOH3
IOF3
VDD
ICC
Input Pins Other Than 50/60Hz Input
10
10
20
µA
mA
µA
mA
µA
mA
µA
V
VIN=VDD
Alarm Output and Sleep Output
VOH=VSS-1V
Alarm Output and Sleep Output
VOUT=VDD
AM & 10’S HR ag & de (24H mode)
VOUT=VDD-1V
AM & 10’S HR ag & de (24H mode)
VOUT=VDD
Segment Output Other Than Those
VOUT=VSS-1V
Segment Output Other Than Those
Listed Above, VOUT=VDD
5
36
18
20
Power failure detection
Voltage
Consumption Current
-7.5
-5
Output set to off and Pull-down attached
input set open
Standard Value,900Hz,
VDD=-9V±10%-10
5
7
mA
%
Backup Oscillator Stability
Factor
Backup Oscillator
Accuracy
FS
-10
-10
10
10
FA
Standard Value,900Hz, VDD=-9V-10
%
DESCRIPTION OF OPERATIONS
*50/60Hz Input:
Built-in Shumidt circuit enables noise eliminations at 50/60Hz commercial frequencies with use of a
simple CR filter. Built-in pull-up resistor.
*CR Input:
When the AC power supply is interrupted, the time counter switches to a holding state and a built-in
oscillator promptly begins operation. If 50/60Hz input continues for 3 clocks without arriving, this
oscillator’s output is activated and functions as the time counter clock in place of 50/60Hz input. The
frequency level of this clock oscillator is determined according to the CR value. While the above
mentioned oscillator is operating using backup mode, all segment output is switched to OFF.
(Note) When the backup oscillator is in use due to an AC power supply interruption, the 50/60Hz input
pin must be maintained open or at a VSS level.
*50/60 Selective Input:
When 50/60 selective input is connected to VSS, 50Hz use is enabled. When 50/60 selective input is
left open, VDD is activated using an internal pull-down resistor and the setting is switched to enable use
at 60Hz.
*Display Mode Selective Input (Alarm Select/Sleep Select):
Since the pull-down resistor is built-in , selection from four display modes is possible using two SPST
switches (single-pole and single-throw switches). Table 1 shows these display mode selections.
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MOS IC
Table1 Display Modes
Selective lnput
Display Mode
Time display
Alarm display
Sleep display
Second display
Digit No. 1
Digit No. 2
Hour
Digit No. 3
Digit No.4
Minute
Alarm
Sleep
10’s place for
hour, AM/PM
10’s place for
hour, AM/PM
10’s place for
Minute
NC
NC
10’s place for
VSS
NC
NC
VSS
VSS
Hour
Hour
Minute
Minute
Second
Minute
10’s place for
Minute
10”s place for
Clear
VSS
Clear
Minute
Second
Note: Activating VSS using two inputs simultaneously (alarm select and sleep select), the display mode is switched to
display seconds.
*Time Setting Input:
There are two setting inputs for use with “hour” and “minute”. Time content settings show in Table2 are
possible by activating VSS to these pins, A pull-down resistor is built-in.
Table2 Setting contents
Display Mode
Time
Set Input
Hour
Functions
Immediately adds 1 to hour digits and then assigns an additional 1, at a
speed of 2 Hz, after each 1/4 to 3/4 second.
Min
Immediately adds 1 to minute digits and then assigns an additional 1, at a
speed of 2 Hz, after each 1/4 to 3/4 second. Seconds are rest.
Operates both as outline above.
Second digits are cleared to [00].
Time holds.
Both
Hour (note1)
Min
Second
(Alarm & Sleep)
Both (note2)
Resets hour and minute digits as [0:00] when operating in 24-H mode or
[12:00] when operating in 12-H mode.
Alarm
Sleep
Hour
Min
Immediately adds 1 to hour digits and then assigns an additional 1, at a
speed of 2 Hz, after each 1/4 to 3/4 second.
Immediately adds 1 to minute digits and then assigns an additional 1, at a
speed of 2 Hz, after each 1/4 to 3/4 second.
Resets hour and minute digits as [0:00] when operating in 24-hour mode or
[12:00] when operating in 12-hour mode.
Sets sleep counter to [0:59] instantly when VDD is activated to sleep select
Sets Sleep counter to [1:59] instantly when VDD is activated to sleep select
and hour at the same time.
Both
-
Hour
Min
Both
Sleep counter looses 1 at a speed of 2 Hz.
Sleep counter looses 1 at a speed of 2 Hz.
Note:1.Once conditions have been switched to reset or hold, input of other functions is locked until both Hour and
Min input have been separated.
2.When the digital reading for seconds is between 30 and 59 seconds, 1 is added to the digits for minutes as
he digital reading for seconds rests to [00].
*12/24H Select Input
:
When this pin set open (VDD), a 12-hour display is enabled whereas connecting this pin to VSS enables
the 24-hour display. A pull-down resistor is build-in.
*Power Failure Detection Display
:
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UTC LM8560
MOS IC
When activated by drop in power supply, all segments which are lit begin to blink and the unit switches
to a power failure detection display. The power failure detection display is canceled by activating VSS to
Hours set or Min set.
*Alarm Operation and Alarm Output
:
The alarm signal outputs when alarm content matches the content of current time. When not rest by
either snooze input or alarm off input, output continues after 1 hour and 59 minutes. This output signal
consists of 900Hz 2Hz intermittent (50% duty) modulation signals, When the need arises , a filter can be
applied to after the alarm signal to a DC signal.
*Snooze Input
:
When the alarm is sounding and instantly activating VSS to this pin , alarm output is set to OFF for a
period between 8 and 9 minutes after which time the alarm signal is once again output. The snooze
function can be used repeatedly in 1 hours and 59 minutes intervals. A pull-down resistor is built-in
Activating VSS to the snooze pin when the alarm is OFF resets the sleep timer counter to [0:00 ](This is
known as the one-touch sleep timer reset function.)
*Alarm Off Input :
Activating this input pin to VSS instantly sets alarm output to OFF.A pull-down resistor is built-in.
*Sleep Timer and Sleep Output :
Sleep output can turn on the radio and can be set for time intervals of 59 minutes or 1 hour and 59
minute. Refer to Table 2 for the proper selection procedure (59 minutes or 1 hour and 59 minute
selection.) This sleep timer is constructed using a down counter and when the counter content arrives at
[00], output is set to off and the radio turns off. Adding VSS to snooze input turns sleep output off. When
sleep output is on.
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UTC LM8560
MOS IC
BLOCK DIAGRAM
Output Decoder/Driver
Second
Display
PWR UP
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UTC LM8560
MOS IC
CLOCK-RADIO APPLICATION CIRCUIT (Positive Power Supply)
+
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UTC LM8560
MOS IC
CLOCK APPLICATION CIRCUIT (Negative Power Supply)
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UTC LM8560
MOS IC
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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