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PDF LM8560 Data sheet ( Hoja de datos )
| Número de pieza | LM8560 | |
| Descripción | MOS IC | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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UTC LM8560
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
MOS IC
SDIP-28
UTC
UNISONIC TECHNOLOGIES CO., LTD. 1
QW-R502-005,D
1 page  
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.
UTC
UNISONIC TECHNOLOGIES CO., LTD. 5
QW-R502-005,D
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet LM8560.PDF ] | |
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