FR-155
7
I C BLOCK DIAGRAM AND DESCRIPTIONS
Q401:TC9273N-004 (Analog function switch)
Q447:TC9162AN (Analog function switch)
2
3
4
5
6
7
8
9
10
11
12
27
26
25
24
23
22
21
20
19
18
17
1
28
V
SS
V
DD
13
14
15
16
GND
CK DATA STB
LEVEL SHIFT AND
SHIFT REGISTER
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
OUT
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
OUT
10BITS LA
TCH CIRCUIT
10BITS LA
TCH CIRCUIT
2
3
4
5
6
7
8
9
10
11
12
13
15
16
17
18
19
20
21
22
23
24
25
26
27
28
14
1
VSS
GND VDD
S1
S2
S3
COM1
S4
S5
S6
COM2
S7
S8
COM3
ST
S1
S3
S2
COM1
S4
S5
S6
COM2
S7
S8
COM3
CK
DATA
LEVEL SHIFTER
LEVEL SHIFTER
LA
TCH CIRCUIT
LA
TCH CIRCUIT
SHIFT REGISTER
Q103,Q181:TA7291S (Motor driver)
INPUT
OUTPUT
IN1
0
1
0
1
IN2
0
0
1
1
OUT1
H
H
L
OUT2
L
H
L
MODE
STOP
CW/CCW
CCW/SW
BRAKE
CCW : Counter clockwise direction
CW : Clockwise direction
Vcc
REG
PROTECTOR
IN1
IN2
GND
OUT1
OUT2
Vss
Vref
2
8
1
5
9
3
6
7
