MOTOROLA CMOS LOGIC DATA
6–397
MC14547B
CONNECTIONS TO VARIOUS DISPLAY READOUTS
LIGHT EMITTING DIODE (LED) READOUT
INCANDESCENT READOUT
LIGHT–EMITTING DIODE (LED) READOUT
USING A ZENER DIODE TO REPLACE DROPPING RESISTORS
* VZD should be set at VDD – 1.3 V – VLED. Wattage of zener diode
must be calculated for number of segments and worst–case
conditions.
** A filament pre–warm resistor is recommended to reduce filament
thermal shock and increase the effective cold resistance of the
filament.
GAS DISCHARGE READOUT
FLUORESCENT READOUT
(Caution: Absolute maximum
working voltage = 18.0 V)
VDD
VSS
COMMON
CATHODE LED
≈
1.7 V
VDD
VSS
COMMON
ANODE LED
≈
1.7 V
VDD
VSS
VDD
VSS
COMMON
CATHODE LED
VDD
* *
VSS
VZD*
VDD
VSS
APPROPRIATE
VOLTAGE
VDD
VSS
DIRECT
(LOW BRIGHTNESS)
FILAMENT
SUPPLY
VSS OR APPROPRIATE
VOLTAGE BELOW VSS.
Summary of Contents for CMOS Logic
Page 1: ......
Page 5: ...iv MOTOROLA CMOS LOGIC DATA ...
Page 6: ...Master Index 1 ...
Page 12: ...Product Selection Guide 2 ...
Page 17: ...The Better Program 3 ...
Page 20: ...B and UB Series Family Data 4 ...
Page 25: ...CMOS Handling and Design Guidelines 5 ...
Page 32: ...CMOS Handling and Design Guidelines 5 ...
Page 39: ...Data Sheets 6 ...
Page 234: ...MOTOROLA CMOS LOGIC DATA MC14174B 6 196 FUNCTIONAL BLOCK DIAGRAM TIMING DIAGRAM ...
Page 238: ...MOTOROLA CMOS LOGIC DATA MC14175B 6 200 FUNCTIONAL BLOCK DIAGRAM TIMING DIAGRAM ...
Page 555: ...CMOS Reliability 7 ...
Page 561: ...Equivalent Gate Count 8 ...
Page 563: ...Packaging Information Including Surface Mounts 9 ...
Page 571: ......