LM8560

LM8560 UTC | Alldatasheet

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UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R502-005,D 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 *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 SDIP-28

UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R502-005,D PIN CONFIGURATIONS AM& 10'S HR ag&de PM& 10'S HR b 10'S HR c& HR e HR b&g HR c&d HR a&f MIN b&g MIN c&d MIN a&f Colon Output VSS Sleep Output Alarm OFF Alarm Display VDD Hour Set Minute Set Sleep Display Snooze Input 50/60 Hz Input 50/60 Hz Select 12/24 HR Select CR Input Alarm Output LM8560 10'S MIN a&f 10'S MIN b&g 10'S MIN c&d 10'S MIN e &Min e ABSOLUTE MAXIMUM RATINGS (Ta=25°C, Vss=0V) PARAMETER SYMBOL TEST CONDITIONS RATING UNIT Maximum Supply Voltage V DD (max) -15~ +0.3 V Input Voltage1 V IN1 50/60Hz Input -15~ +0.3 V Input Voltage2 V IN2 Except 50/60Hz Input -15~ +0.3 V Output Voltage V OUT -15~ +0.3 V Input Clamp Current l IN 50/60Hz Input -0.4 ~+0.4 mA Allowable Power Dissipation P D (max) Ta=70 °C 700 mW Operating Temperature Topr -30 ~ +70 °C Storage Temperature Tstg -55 ~ +125 °C ALLOWABLE OPERATING RANGES (Ta=25°C, Vss=0V ) PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT Supply Voltage V DD -14 -7.5 V Input “H” Level Voltage1 V IH1 50/60Hz Input -1 V Input “L” Level Voltage1 V IL1 50/60Hz Input V DD+2 V Input “H” Level Voltage2 V IH2 Except 50/60Hz Input -1.5 V Input “L” Level Voltage2 V IL2 Except 50/60Hz Input V DD+2 V 50/60Hz Input Pin Input Voltage VAC-IN Sets V SS as Reference V LED V

UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R502-005,D ELECTRICAL CHARACTERISTICS (Ta=25°C, VDD=-12V unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT Input “H” Level Current 1 I IH1 50/60Hz Input, V IN=VSS 10 µA Input “L” Level Current 1 I IL1 50/60Hz Input, V IN=VDD 10 µA Input “H” Level Current 2 I IH2 Input Pins Other Than 50/60Hz Input VIN=VSS 20 µA Input “L” Level Current 2 I IL2 Input Pins Other Than 50/60Hz Input VIN=VDD 10 µA Output “H” Level Current 1 I OH1 Alarm Output and Sleep Output VOH=VSS-1V 5 mA Output Leakage Current 1 I OF1 Alarm Output and Sleep Output VOUT=VDD 10 µA Output “H” Level Current 2 I OH2 AM & 10’S HR ag & de (24H mode) VOUT=VDD-1V 36 mA Output Leakage Current 2 I OF2 AM & 10’S HR ag & de (24H mode) VOUT=VDD µA Output “H” Level Current 3 I OH3 Segment Output Other Than Those VOUT=VSS-1V 18 mA Output Leakage Current 3 I OF3 Segment Output Other Than Those Listed Above, VOUT=VDD 20 µA Power failure detection Voltage VDD -7.5 -5 V Consumption Current I CC Output set to off and Pull-down attached input set open 5 7 mA Backup Oscillator Stability Factor FS Standard Value,900Hz, VDD=-9V±10%-10 -10 10 % Backup Oscillator Accuracy FA Standard Value,900Hz, V DD=-9V-10 -10 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 mo de, 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 V SS level. *50/60 Selective Input: When 50/60 selective input is connected to V SS, 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.

UTC UNISONIC TECHNOLOGIES CO., LTD. 4 QW-R502-005,D Table1 Display Modes Selective lnput Alarm Sleep Display Mode Digit No. 1 Digit No. 2 Digit No. 3 Digit No.4 NC NC Time display 10’s place for hour, AM/PM Hour 10’s place for Minute Minute VSS NC Alarm display 10’s place for hour, AM/PM Hour 10’s place for Minute Minute NC V SS Sleep display Clear Hour 10’s place for Minute Minute VSS V SS Second display Clear Minute 10”s place for Second 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 V SS to these pins, A pull-down resistor is built-in. Table2 Setting contents Display Mode Set Input Functions Hour 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. Time Both Operates both as outline above. Hour (note1) Second digits are cleared to [00]. Min Time holds. 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. Hour 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. Alarm Both 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 V DD is activated to sleep select Hour Sets Sleep counter to [1:59] instantly when V DD is activated to sleep select and hour at the same time. Min Sleep counter looses 1 at a speed of 2 Hz. Sleep Both 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 (V DD), a 12-hour display is enabled whereas connecting this pin to V SS enables the 24-hour display. A pull-down resistor is build-in. *Power Failure Detection Display :

UTC UNISONIC TECHNOLOGIES CO., LTD. 5 QW-R502-005,D 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 V SS 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 V SS 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 V SS 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 V SS to snooze input turns sleep output off. When sleep output is on.

UTC UNISONIC TECHNOLOGIES CO., LTD. 6 QW-R502-005,D BLOCK DIAGRAM 20 18 1715 Output Decoder/Driver Blank& Flash PF. DET AM&10'S HR ag&de PM&10'S HR b 10'S HR c&HRe HR b&g HR c&d HR a&f 10'S MIN a&f 10'S MIN b&g 10'S MIN c&d 10'S MIN e&Min e MIN b&g MIN c&d MIN a&f 12/24 HR Select 50/60 Hz Select 50/60 Hz Sec Time Alarm Sleep Sleep Output Alarm Output Alarm OFF Colon Output VSSVDD Snooze Input Sleep Display AlarmDisplay Hour Set Minute Set 50/60Hz Input CR Input GATE TDisp & S.Sample 1Hz 2Hz 1/21/25 or 1/30 50/60Hz GATE CTROSC Tone Standby DET Input Control S.Sample F.Sample 2Hz Sec RSTYHLD T.RST AL.RST PWR UP SEC DispT DispAL Disp SL Disp Reset Control Display Control PWR UP Second Display SEC CTR Time HR.CTRTime min.CTR Time&S.Sample Time&F.Sample Comparator Alarm MIN CTR Alarm HR CTR Alarm&F.SampleTime&F.Sample Sleep CTR Control PWR UP Output Control

UTC UNISONIC TECHNOLOGIES CO., LTD. 7 QW-R502-005,D CLOCK-RADIO APPLICATION CIRCUIT (Positive Power Supply) 12 HR NC 60 HZ NC Backup Battery AC 100k cycle 1 cycle 2 110k 0.015μ f=900Hz 2.2k 2.2k 4.7k 27k 27k 4.7k Note: Duplex LED Cathode Common

12 Hour Display and 60Hz Circuit Diagram

0.001μ Unit(resistor:Ω , capacitor : F) 15161819202122 1724252627 23 14131110987 1254321 6 VSSSleep Output Alarm OFF Alarm Display VDDHour Set Minute Set Sleep Display Snooze Input Hz Input Hz Select HR Select CR Input Alarm Output AM& 10'S HR ag&de PM& 10'S HR b 10'S HR c& HR e HR b&g HR c&d HR a&f 10'S MIN a&f 10'S MIN b&g 10'S MIN c&d 10'S MIN e &Min e MIN b&g MIN c&d MIN a&f Colon Output This circuit is used as noise interference stripper for the LW band.(Backup control is enalbled except for battery backup mode LM8560 + μ0.47 a b c d e f g

UTC UNISONIC TECHNOLOGIES CO., LTD. 8 QW-R502-005,D CLOCK APPLICATION CIRCUIT (Negative Power Supply) 15161819202122 172425262728 23 14131110987 1254321 6 AM& 10'S HR PM& 10'S HR b 10'S HR c& HR e HR b&g HR c&d HR a&f 10'S MIN a&f 10'S MIN b&g 10'S MIN c&d 10'S MIN e &Min e MIN b&g MIN c&d MIN a&f Colon Output VSSSleep Output Alarm OFF Alarm Display VDDHour Set Minute Set Sleep Display Snooze Input Hz Input Hz Select HR Select CR Input 12 HR NC 60 HZ NC AC 0.001μ 100k cycle 1 cycle 2 110k f=900Hz Note: When Battery backup or tone output is not used,CR input is conneced to Vss Cathode Common 0.015μ 330μ Alarm Output Unit(resistor:Ω , capacitor : F) LM8560 Duplex LED a b c d e f g

UTC UNISONIC TECHNOLOGIES CO., LTD. 9 QW-R502-005,D 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.