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DR- R504X
No.
Pin Name
1/0
91
GND
-
Ground.
92
HOB
1/0
93
HD?
1/0
94
HD6
1 /0
95
HD5
1
/0
96
HD4
1 /0
Host MPU data bus.
97
HD3
1 /0
98
HD2
1/0
99
HDl
1 /0
100 HOO
1 /0
• TC7W74FU ( IC1006: MAIN UNIT),
TC7W74F ( IC1102: MAIN UNIT)
•D - TYPE FLIP FLOP WITH PRESET AND
CLEAR
• Block Diagram (Top View)
CK
D
Q
GND
• Table of Truth Value
INPUTS
CLR
PR
D
CK
L
H
x
x
H
L
x
x
L
L
x
x
H
H
L
_J
H
H
H
_J
H
H
x
t_
X
: Don't care
58
OUTPUTS
0
0
L
H
H
L
H
H
L
H
H
L
On
On
FUNCTION
CLEAR
PRESET
-
-
-
NO CHANGE
Function
(
.
.
(
(
(
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