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MAC-V700
TC74VHCT573AFT (IC110, IC113: DECB BOARD ASSY)
Octal D-Type Latch With 3-State Output
Block Diagram
D0
2
D
L Q
11
LE
1
OE
19
Q0
TA8440H (IC114: HMCB BOARD ASSY)
Bridge Driver IC
Block Diagram
2
IN
3
BRAKE
1
ENABLE
CHOP
5
TSD
Pin Function
No. Pin Name
1
ENABLE
Enable Terminal
2
IN
FWD/ REV Change Terminal
3
BRAKE
Blake Terminal
4
SG
Signal Ground
5
CHOP
PWM Signal Terminal
6
VCC
Control Power Terminal
7
VS
Output Power Terminal
8
OUTA
Output Terminal
9
PG
Power Ground
10 COMMON Common Terminal
11
PG
Power Ground
12
OUTA
Output Terminal
84
D1
D2
D3
3
4
5
D
D
L Q
L Q
18
17
Q1
Q2
VCC
6
DECODER
4
SG
Description
D4
D5
6
7
D
D
D
L Q
L Q
L Q
16
15
Q3
Q4
7 VS
8 OUTA
12 OUTA
10 COMMON
9 PG
D6
D7
8
9
D
D
L Q
L Q
14
13
12
Q5
Q6
Q7
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