Motorola CMOS Logic Manual page 309

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.
MOTOROLA CMOS LOGIC DATA
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
LIQUID CRYSTAL (LC) READOUT
V DD
1/4 OF MC14070B
V SS
Direct dc drive of LC's not recommended for life of LC readouts.
1.7 V
FILAMENT
(SUPPLY)
V SS OR APPROPRIATE
VOLTAGE BELOW V SS .
EXCITATION
(SQUARE WAVE,
V SS TO V DD )
MC14513B
6–271