XL-R5020BK
21
5.3 BU4052BCF-X(IC821):Channel switch controller
• Pin layout
• Truth table
X : Don't Care
5.4 LB1641 (IC851,IC852) : DC Motor driver
• Pin layout
• Truth table
5.5 TC74HC00AF(IC301,IC311):Digital I/O selector
• Pin layout & block diagram
INHIBIT
A
B
ON SWITCH
L
L
L
X0
Y0
L
H
L
X1
Y1
L
L
H
X2
Y2
L
H
H
X3
Y3
H
X
X
NONE
Input
Output
Mode
IN1
IN2
OUT1
OUT2
0
0
0
0
Brake
1
0
1
0
CLOCKWISE
0
1
0
1
COUNTER-CLOCKWISE
1
1
0
0
Brake
Содержание XL-R5020BK
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