Download Sharp VL-DC1E Programming instructions

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ComponentRef.book Page 10 Thursday, December 7, 2006 10:12 AM
CMOS
5-stage Johnson counter truth table:
MR
CP0 CP1
1
0
0
0
0
0
0
1
0
X
·
‚
n
X
1
·
0
X
1
‚
=
=
=
=
=
=
X
‚
0
X
1
·
0
OPERATION
O0 = O5-9 = H; O1 to O9 = L
Counter advances
Counter advances
No change
No change
No change
No change
HIGH state (the more positive voltage)
LOW state (the less positive voltage)
state is immaterial
positive-going transition
negative-going transition
number of clock pulse transitions
7.2.18 40174 (Hex D-type Flip-flop)
The 40174 device is a hex edge-triggered D-type flip-flop with six data inputs (D0 to D5), a
clock input (CP), an overriding asynchronous master reset input (MR), and six buffered
outputs (Q0 to Q5).
Multisim Component Reference Guide
7-10
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