ADD8504/ADD8505/ADD8506
Rev. D | Page 5 of 12
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
INA1
1
VCC1
24
INB1
2
OUT1
23
INA2
3
OUT2
22
INB2
4
OUT3
21
INA3
5
VCC2
20
INB3
6
A/B
19
INA4
7
GND
18
INB4
8
GND
17
INA5
9
OUT4
16
INB5
10
OUT5
15
INA6
11
OUT6
14
INB6
12
VCC3
13
05549-003
Figure 4. Pin Configuration, ADD8506, 6-Channel Buffer
INA1
1
VCC1
20
INB1
2
OUT1
19
INA2
3
OUT2
18
INB2
4
OUT3
17
INA3
5
VCC2
16
INB3
6
A/B
15
INA4
7
GND
14
INB4
8
GND
13
INA5
9
OUT4
12
INB5
10
OUT5
11
05549-002
Figure 5. Pin Configuration, ADD8505, 5-Channel Buffer
INA1
1
OUT1
16
INB1
2
OUT2
15
INA2
3
VCC1
14
INB2
4
A/B
13
INA3
5
GND
12
INB3
6
GND
11
INA4
7
OUT3
10
INB4
8
OUT4
9
05549-001
Figure 6. Pin Configuration, ADD8504, 4-Channel Buffer
Table 5. Pin Function Descriptions
ADD8506
Pin No.
ADD8505
Pin No.
ADD8504
Pin No.
Mnemonic Function Description
1 1 1 INA1 Input Channel 1 Buffer Input A.
2 2 2 INB1 Input Channel 1 Buffer Input B.
3 3 3 INA2 Input Channel 2 Buffer Input A.
4 4 4 INB2 Input Channel 2 Buffer Input B.
5 5 5 INA3 Input Channel 3 Buffer Input A.
6 6 6 INB3 Input Channel 3 Buffer Input B.
7 7 7 INA4 Input Channel 4 Buffer Input A.
8 8 8 INB4 Input Channel 4 Buffer Input B.
9 9 N/A INA5 Input Channel 5 Buffer Input A.
10 10 N/A INB5 Input Channel 5 Buffer Input B.
11 N/A N/A INA6 Input Channel 6 Buffer Input A.
12 N/A N/A INB6 Input Channel 6 Buffer Input B.
13 N/A N/A VCC3 Power In Power Supply Input. Short to VCC1 and VCC2. Typically connected to 5 V.
14 N/A N/A OUT6 Output Channel 6 Buffer Output.
15 11 N/A OUT5 Output Channel 5 Buffer Output.
16 12 9 OUT4 Output Channel 4 Buffer Output.
17, 18 13, 14 11, 12 GND Ground Ground.
19 15 13 A/B Input Switch Control. Logic High selects Input A; Logic Low selects Input B.
20 16 N/A VCC2 Power In Power Supply Input. Short to VCC1 and VCC3. Typically connected to 5 V.
21 17 10 OUT3 Output Channel 3 Buffer Output.
22 18 15 OUT2 Output Channel 2 Buffer Output.
23 19 16 OUT1 Output Channel 1 Buffer Output.
24 20 14 VCC1 Power In Power Supply Input. Short to VCC2 and VCC3. Typically connected to 5 V.