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PCA9675 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 2 — 3 October 2011 8 of 34
NXP Semiconductors
PCA9675
Remote 16-bit I/O expander for Fm+ I
2
C-bus with interrupt
7.2 Software Reset call, and Device ID addresses
Two other different addresses can be sent to the PCA9675.
• General Call address: allows to reset the PCA9675 through the I
2
C-bus upon
reception of the right I
2
C-bus sequence. See Section 7.2.1 “Software Reset” for more
information.
• Device ID address: allows to read ID information from the device (manufacturer, part
identification, revision). See Section 7.2.2 “
Device ID (PCA9675 ID field)” for more
information.
SCL V
SS
V
SS
1100000C0h
SCL V
SS
V
DD
1100001C2h
SCL V
DD
V
SS
1100010C4h
SCL V
DD
V
DD
1100011C6h
SDA V
SS
V
SS
1100100C8h
SDA V
SS
V
DD
1100101CAh
SDA V
DD
V
SS
1100110CCh
SDA V
DD
V
DD
1100111CEh
SCL V
SS
SCL1110000E0h
SCL V
SS
SDA1110001E2h
SCL V
DD
SCL1110010E4h
SCL V
DD
SDA1110011E6h
SDA V
SS
SCL1110100E8h
SDA V
SS
SDA1110101EAh
SDA V
DD
SCL1110110ECh
SDA V
DD
SDA1110111EEh
Table 3. PCA9675 address map
…continued
AD2 AD1 AD0 A6 A5 A4 A3 A2 A1 A0 Address (hex)
Fig 8. General Call address
Fig 9. Device ID address
0
002aac155
0 0 0 0 0 0 0
R/W