Motorola CMOS Logic Manual page 298

V DD
V SS
INCANDESCENT READOUT
V DD
V SS
GAS DISCHARGE READOUT
V DD
V SS
** A filament pre–warm resistor is recommended to reduce filament
thermal shock and increase the effective cold resistance of the
filament.
MC14511B
6–260
CONNECTIONS TO VARIOUS DISPLAY READOUTS
LIGHT EMITTING DIODE (LED) READOUT
COMMON
CATHODE LED
1.7 V
V DD
**
APPROPRIATE
VOLTAGE
V DD
COMMON
ANODE LED
V SS
FLUORESCENT READOUT
V DD
DIRECT
(LOW BRIGHTNESS)
V SS
(CAUTION: Maximum working voltage = 18.0 V)
LIQUID CRYSTAL (LCD) READOUT
V DD
1/4 OF MC14070B
V SS
Direct dc drive of LCD's not recommended for life of
LCD readouts.
MOTOROLA CMOS LOGIC DATA
1.7 V
FILAMENT
SUPPLY
V SS OR APPROPRIATE
VOLTAGE BELOW V SS .
EXCITATION
(SQUARE WAVE,
V SS TO V DD )