AD5170 Analog Devices, AD5170 Datasheet - Page 21

• Manufacturer Part Number: AD5170
• Description: 256-Position Two-Time Programmable I2C Digital Potentiometer
• Manufacturer: Analog Devices

Table 9. Validation Status
E1
0
1
1
Multiple Devices on One Bus
Figure 47 shows four AD5170s on the same serial bus. Each has
a different slave address because the states of their AD0 and
AD1 pins are different. This allows each device on the bus to be
written to or read from independently. The master device
output bus line drivers are open-drain pull-downs in a fully I
compatible interface.
E0
0
0
1
Status
Ready for Programming
Fatal Error. Some fuses not blown. Do not retry.
Discard this unit.
Successful. No further programming is possible
Rev. 0 | Page 21 of 24
2
C
MASTER
SDA
AD5170
AD1
AD0
R
SCL
Figure 47. Multiple AD5170s on One I
P
R
P
5V
SDA
AD5170
AD1
AD0
SCL
5V
5V
SDA
AD5170
AD1
AD0
SCL
2
C Bus
5V
SDA
AD5170
AD1
AD0
AD5170
SCL
SDA
SCL