LM8560 View Datasheet(PDF) - Unisonic Technologies
Part Name
Description
Manufacturer
LM8560 Datasheet PDF : 9 Pages
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UTC LM8560
MOS IC
ELECTRICAL CHARACTERISTICS (Ta=25°C, VDD=-12V unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN. TYP. MAX.
Input “H” Level Current 1
IIH1 50/60Hz Input, VIN=VSS
10
Input “L” Level Current 1
IIL1 50/60Hz Input, VIN=VDD
10
Input “H” Level Current 2 IIH2 Input Pins Other Than 50/60Hz Input
20
VIN=VSS
Input “L” Level Current 2
IIL2 Input Pins Other Than 50/60Hz Input
10
VIN=VDD
Output “H” Level Current 1 IOH1 Alarm Output and Sleep Output
5
VOH=VSS-1V
Output Leakage Current 1 IOF1 Alarm Output and Sleep Output
10
VOUT=VDD
Output “H” Level Current 2 IOH2 AM & 10’S HR ag & de (24H mode)
36
VOUT=VDD-1V
Output Leakage Current 2 IOF2 AM & 10’S HR ag & de (24H mode)
20
VOUT=VDD
Output “H” Level Current 3 IOH3 Segment Output Other Than Those
18
VOUT=VSS-1V
Output Leakage Current 3 IOF3 Segment Output Other Than Those
20
Listed Above, VOUT=VDD
Power failure detection
VDD
-7.5
-5
Voltage
Consumption Current
ICC Output set to off and Pull-down attached
5
7
input set open
Backup Oscillator Stability FS Standard Value,900Hz,
-10
10
Factor
VDD=-9V±10%-10
Backup Oscillator
FA Standard Value,900Hz, VDD=-9V-10
-10
10
Accuracy
UNIT
µA
µA
µA
µA
mA
µA
mA
µA
mA
µA
V
mA
%
%
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.
UTC UNISONIC TECHNOLOGIES CO., LTD. 3
QW-R502-005,D
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