Datasheet

PCA9670 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 3 — 30 May 2013 6 of 35
NXP Semiconductors
PCA9670
Remote 8-bit I/O expander for Fm+ I
2
C-bus with reset
7.1.1 Address maps
Table 4. PCA9670 address map
Pin connectivity Address of PCA9670 Address byte value 7-bit
hexadecimal
address
without R/W
AD2 AD1 AD0 A6 A5 A4 A3 A2 A1 A0 R/W Write Read
V
SS
SCL V
SS
0 0 1 0 0 0 0 - 20h 21h 10h
V
SS
SCL V
DD
0 0 1 0 0 0 1 - 22h 23h 11h
V
SS
SDA V
SS
0 0 1 0 0 1 0 - 24h 25h 12h
V
SS
SDA V
DD
0 0 1 0 0 1 1 - 26h 27h 13h
V
DD
SCL V
SS
0 0 1 0 1 0 0 - 28h 29h 14h
V
DD
SCL V
DD
0010101 - 2Ah 2Bh 15h
V
DD
SDA V
SS
0 0 1 0 1 1 0 - 2Ch 2Dh 16h
V
DD
SDA V
DD
0010111 - 2Eh 2Fh 17h
V
SS
SCL SCL 0 0 1 1 0 0 0 - 30h 31h 18h
V
SS
SCL SDA 0 0 1 1 0 0 1 - 32h 33h 19h
V
SS
SDA SCL 0 0 1 1 0 1 0 - 34h 35h 1Ah
V
SS
SDA SDA 0 0 1 1 0 1 1 - 36h 37h 1Bh
V
DD
SCL SCL 0 0 1 1 1 0 0 - 38h 39h 1Ch
V
DD
SCL SDA 0 0 1 1 1 0 1 - 3Ah 3Bh 1Dh
V
DD
SDA SCL 0 0 1 1 1 1 0 - 3Ch 3Dh 1Eh
V
DD
SDASDA0011111 - 3Eh 3Fh 1Fh
V
SS
V
SS
V
SS
0 1 0 0 0 0 0 - 40h 41h 20h
V
SS
V
SS
V
DD
0 1 0 0 0 0 1 - 42h 43h 21h
V
SS
V
DD
V
SS
0 1 0 0 0 1 0 - 44h 45h 22h
V
SS
V
DD
V
DD
0 1 0 0 0 1 1 - 46h 47h 23h
V
DD
V
SS
V
SS
0 1 0 0 1 0 0 - 48h 49h 24h
V
DD
V
SS
V
DD
0100101 - 4Ah 4Bh 25h
V
DD
V
DD
V
SS
0 1 0 0 1 1 0 - 4Ch 4Dh 26h
V
DD
V
DD
V
DD
0100111 - 4Eh 4Fh 27h
V
SS
V
SS
SCL 0 1 0 1 0 0 0 - 50h 51h 28h
V
SS
V
SS
SDA 0 1 0 1 0 0 1 - 52h 53h 29h
V
SS
V
DD
SCL0101010 - 54h 55h 2Ah
V
SS
V
DD
SDA0101011 - 56h 57h 2Bh
V
DD
V
SS
SCL0101100 - 58h 59h 2Ch
V
DD
V
SS
SDA0101101 - 5Ah 5Bh 2Dh
V
DD
V
DD
SCL0101110 - 5Ch 5Dh 2Eh
V
DD
V
DD
SDA0101111 - 5Eh 5Fh 2Fh