Ic Block Diagram - Yamaha 01x Service Manual

IC BLOCK DIAGRAM

TC74VHC04FEL (XM332A00)
TC74VHCT04AF (XT777A00)
Hex Inverter
DM: IC118
AN: IC308
1A 1 14
VDD
2
13
1Y
6A
3 12
2A 6Y
4
2Y 11
5A
5
10
3A 5Y
6 9
3Y
4A
7
Vss 8
4Y
TC74HC21AF (XJ622A00)
Dual 4 Input AND
DM: IC212
1A Vcc
1 14
1B 2D
2 13
NC 2C
3 12
1C NC
4 11
1D 2B
5 10
1Y 2A
6 9
GND 2Y
7 8
SN74AHCT245PWR (X2709A00)
SN74LV245APWR (X3693A00)
TC74VHCT245AFT (XT744A00)
HD74LVC245ATELL (XW148A00)
SN74LVC245APWR (XZ287A00)
Octal 3-State Bus Transceiver
DM: IC110, 111, 401, 604, 605
DM: IC114
DM: IC206, 207
MLN2: IC022, 026, 035, 037, 039
1
D1R
20 Vcc
2
19
A1 G
18
3
A2
B1
17
4
A3
B2
16
5
A4
B3
15
A5 6 B4
14
A6 7 B5
13
A7
8 B6
12
A8
9 B7
11 B8
GND
10
HD74LS06FPEL (XH610A00)
Hex Inverter
MF: IC101, 102
1A 1
14 VDD
2 13
1Y
6A
3
12
2A 6Y
4
2Y 11
5A
5
10
3A 5Y
6
9
3Y
4A
7
Vss 8
4Y
TC74VHC157FT (X0199A00)
Quad 2 to 1 Multiplexer
DM: IC301, 306
1
SELECT 16 Vcc
2 1A G
1A 15 STROBE
3
1B 4A 14
1B 4A
4
1Y 1Y 4B 13 4B
5
2A 4Y 12
2A 4Y
6
2B 3A 11
2B 3A
7 2Y 3B 10
2Y 3B
8
GND 9 3Y
SN74HC273NSR (XH223A00)
Octal D-Type Flir Flop
DM: IC404
1 20
CLEAR
2 19
1Q Q Q
CL CL
3 D CK CK D 18
1D
4 17
2D
D D
CK CK
CL CL
5 Q Q 16
2Q
6 15
3Q
Q Q
CL CL
7 D CK CK D 14
3D
8 13
4D
D CK CK D
CL CL
9 Q Q 12
4Q
10 11
GND
TC74VHC14FT (XV890A00)
Hex Inverter
DM: IC102, 303
1
1A
2
1Y
3
2A
4
2Y
5
3A
6
3Y
7
GND
HD74LVC244ATELL (X2308A00)
SN74AHC244PWR (X3262A00)
TC74VHC244FT (XW234A00)
Octal 3-State Bus Buffer
MLN2: IC036, 040
DM: IC704
1G
1
2
1A1
3
2Y4
1A2
4
5
2Y3
1A3
6
7
2Y2
8
1A4
2Y1 9
(GND) Vss
10
TC74HC4052AF (XS790A00)
Differential 4-Channel
Multiplexer/Demultiplexer
MF: IC107
1
0Y
VCC
2Y
2
2Y
8Q
Y-COM 3 Y-COM
8D
3Y 4
3Y
7D
1Y
5 1Y
7Q
INH 6
INH
6Q
VEE
6D 7
5D
VSS 8
5Q
CLOCK
O1X
14
VDD
13
6A
12
6Y
11
5A
10
5Y
9
4A
8
4Y
VDD (Vcc)
20
2G
19
1Y1
18
2A4
17
1Y2
16
2A3
15
1Y3
14
2A2
13
1Y4
12
2A1
11
16 VDD
2X 15 2X
1X
14 1X
X-COM 13 X-COM
0X 12
0X
3X 11
3X
A
10 A
B
9
33