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PCA9673 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 2 — 29 September 2011 7 of 33
NXP Semiconductors
PCA9673
Remote 16-bit I/O expander for Fm+ I
2
C-bus with interrupt and reset
7.2 Software Reset call, and Device ID addresses
Two other different addresses can be sent to the PCA9673.
• General Call address: allows to reset the PCA9673 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 (PCA9673 ID field)” for more
information.
V
SS
V
SS
010010048h
V
SS
V
DD
01001014Ah
V
DD
V
SS
01001104Ch
V
DD
V
DD
01001114Eh
V
SS
SCL010110058h
V
SS
SDA01011015Ah
V
DD
SCL01011105Ch
V
DD
SDA01011115Eh
Table 3. PCA9673 address map …continued
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