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7474.chp
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1979-12-31
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601b
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51 lines
09/22/87
Dual "D" type flip-flop.
Edge triggered.
74H74
74LS74A
74S74
14
clr (1)
1d
1 ck
1 pr
1q
1(not)q
gnd
2(not)q
2q
2 pr
2 ck
2d
clr (2)
Vcc
6
Contains two
independent D type
flip-flops. They
share no common
inputs or outputs.
done
14
CLEAR for ff#1. (Active Low)
DATA in for ff#1.
CLOCK input for ff#1
PRESET for ff#1.
Q output for ff#1.
NOT Q (inverted) output for ff#1.
ground (-)
NOT Q (inverted) output for ff#2.
Q output for ff#2.
PRESET for ff#2.
CLOCK input for ff#2.
DATA in for ff#2.
CLEAR for ff#2. (Active Low)
Vcc (+5 volts).