ADuM2250/ADuM2251 Data Sheet
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
06670-004
NC = NO CONNECT
ADuM2250/
ADuM2251
T
O
P VIEW
(Not to Scale)
GND
1
1
NC
2
V
DD1
3
NC
4
GND
2
16
NC
15
V
DD2
14
NC
13
SD
A
1
5
SD
A
2
12
SC
L
1
6
SC
L
2
1
1
GND
1
7
NC
10
NC
8
GND
2
9
NOTES
1. PIN 1
AND PIN 7
ARE INTERNAL
L
Y
CONNECTED
T
O EACH OTHER, AND IT IS
RECOMMENDED TH
A
T BOTH PINS BE CONNECTED
T
O
A
COMMON GROUND.
2. PIN 9 AND PIN 16
ARE INTERNAL
L
Y
CONNECTED
T
O EACH OTHER,
AND IT IS
RECOMMENDED THA
T BOTH PINS BE CONNECTED
T
O
A
COMMON GROUND.
Figure 4. Pin Configuration
Table 9. ADuM2250 Pin Function Descriptions
Pin No. Mnemonic Description
1, 7 GND
1
Ground 1. Ground reference for Isolator Side 1. Pin 1 and Pin 7 are internally connected to each other, and
it is recommended that both pins be connected to a common ground.
2, 4, 8, 10,
13, 15
NC No Connect.
DD1
Supply Voltage, 3.0 V to 5.5 V.
5 SDA
1
Data Input/Output, Side 1.
6 SCL
1
Clock Input/Output, Side 1.
9, 16 GND
2
Ground 2. Isolated ground reference for Isolator Side 2. Pin 9 and Pin 16 are internally connected to each
other, and it is recommended that both pins be connected to a common ground.
11 SCL
2
Clock Input/Output, Side 2.
12 SDA
2
Data Input/Output, Side 2.
14 V
DD2
Supply Voltage, 3.0 V to 5.5 V.
Table 10. ADuM2251 Pin Function Descriptions
Pin No. Mnemonic Description
1, 7 GND
1
Ground 1. Ground reference for Isolator Side 1. Pin 1 and Pin 7 are internally connected to each other, and
it is recommended that both pins be connected to a common ground.
2, 4, 8, 10,
13, 15
NC No Connect.
3 V
DD1
Supply Voltage, 3.0 V to 5.5 V.
5 SDA
1
Data Input/Output, Side 1.
6 SCL
1
Clock Input, Side 1.
9, 16 GND
2
Ground 2. Isolated ground reference for Isolator Side 2. Pin 9 and Pin 16 are internally connected to each
other, and it is recommended that both pins be connected to a common ground.
2
12 SDA
2
Data Input/Output, Side 2.
14 V
DD2
Supply Voltage, 3.0 V to 5.5 V.
Rev. D | Page 8 of 16