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LINE LABEL ABBREVIATIONS
CK, C
Clock Input
MSB
Most Significant Bit
D
Data or Delay Input (Flip-Flop)
Q
Output
EN
Enable
Of
Not Q Complement of 0
F
3-State Enable Input
R
Reset or Clear Input
G
Gating Input
RD
Read
LSB
Least Significant Bit
S
Set Input
Trigger Input (Monostable)
Write
Count Up
Count Down
3-State (placed by function)
FUNGI
EL A
ATIONS
Adder
Amplifier/Buffer
Schmitt Trigger
AND
OR
Exclusive OR
Encoder, Decoder
0
Open Collector
U~]_
Monostable Multivibrator
BCD
Binary Coded Decimal
CTR
Counter
DAC
Digitai-to-Analog Converter
FF
Flip-Flop
I/O
Input/Output
Light-Emitting Diode
Multiplexer
Random-Access Memory
Register
Read Only Memory
Rotary Pulse Generator
Figure 8-1. Schematic Diagram Notes (3 of 3)
8-5
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