Advertisement
HD74HC126FP-X (IC801) : Buffer
1.Terminal layout
1
1C
1A
2
1Y
3
4
2C
5
2A
6
2Y
7
GND
2.Block diagram
Vcc
Input
LB1641 (IC402) : DC motor driver
1. Pin layout
1
2
3
4
5
GND OUT1 P1
VZ
IN1
14
VU
13
4C
12
4A
11
4Y
10
3C
9
3A
8
3Y
Vcc
1A
1Y
2A
3A
2Y
4A
1C
2C
3C
2Y
4C
3Y
4Y
Note) CL includes probe and jig capacitance
2. Pin function
6
7
8
9
10
IN2 VCC1 VCC2 P2
OUT2
3.Pin function
Input
Output
C
A
Y
L
X
Z
H
L
H
H
H
L
Note) H:High level
L:Low level
X:Irrelevant
Z:Off(High-impedance)
State a 3-state input
1k
Output
CL
Output
Sample as Load Circuit 1
Output
Sample as Load Circuit 1
Output
Sample as Load Circuit 1
Input
Output
IN1
IN2
OUT1
0
0
0
1
0
1
0
1
0
1
1
0
KS-FX772R
S1
1k
Mode
OUT2
0
Brake
0
CLOCKWISE
1
COUNTER-CLOCKWISE
0
Brake
1-31
Advertisement
