Casio QT-6100 - Page 81

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2. ALVCH16245 (IC8)
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1DIR
1B1
1B2
GND
1B3
1B4
V
CC
1B5
1B6
GND
1B7
1B8
2B1
2B2
GND
2B3
2B4
V
CC
2B5
2B6
GND
2B7
2B8
2DIR
1OE
1A1
1A2
GND
1A3
1A4
V
CC
1A5
1A6
GND
1A7
1A8
2A1
2A2
GND
2A3
2A4
V
CC
2A5
2A6
GND
2A7
2A8
2OE
To Seven Other Channels
1DIR
1A1
1B1
1OE
1
47
48
2
logic diagram (positive logic)
terminal assignments
1 2 3 4 5 6
A 1DIR
NC
NC
NC
NC
1OE
B 1B2
1B1
GND
GND
1A1
1A2
C 1B4
1B3
V
CC
V
CC
1A3
1A4
D 1B6
1B5
GND
GND
1A5
1A6
E 1B8
1B7
1A7
1A8
F 2B1
2B2
2A2
2A1
G 2B3
2B4
GND
GND
2A4
2A3
H 2B5
2B6
V
CC
V
CC
2A6
2A5
J 2B7
2B8
GND
GND
2A8
2A7
K 2DIR
NC
NC
NC
NC
2OE
NC No internal connection
FUNCTION TABLE
(each 8-bit section)
INPUTS
OPERATION
OE
DIR
OPERATION
L
L
B data to A bus
L
H A data to B bus
H
X
Isolation