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 7 of 35
NXP Semiconductors
PCA9670
Remote 8-bit I/O expander for Fm+ I
2
C-bus with reset
SCL SCL V
SS
1 0 1 0 0 0 0 - A0h A1h 50h
SCL SCL V
DD
1 0 1 0 0 0 1 - A2h A3h 51h
SCL SDA V
SS
1 0 1 0 0 1 0 - A4h A5h 52h
SCL SDA V
DD
1 0 1 0 0 1 1 - A6h A7h 53h
SDA SCL V
SS
1 0 1 0 1 0 0 - A8h A9h 54h
SDA SCL V
DD
1 0 1 0 1 0 1 - AAh ABh 55h
SDA SDA V
SS
1010110 - ACh ADh 56h
SDA SDA V
DD
1 0 1 0 1 1 1 - AEh AFh 57h
SCL SCL SCL 1 0 1 1 0 0 0 - B0h B1h 58h
SCL SCL SDA 1 0 1 1 0 0 1 - B2h B3h 59h
SCL SDA SCL 1 0 1 1 0 1 0 - B4h B5h 5Ah
SCL SDA SDA 1 0 1 1 0 1 1 - B6h B7h 5Bh
SDA SCL SCL 1 0 1 1 1 0 0 - B8h B9h 5Ch
SDA SCL SDA 1 0 1 1 1 0 1 - BAh BBh 5Dh
SDA SDA SCL 1 0 1 1 1 1 0 - BCh BDh 5Eh
SDA SDA SDA 1 0 1 1 1 1 1 - BEh BFh 5Fh
SCL V
SS
V
SS
1 1 0 0 0 0 0 - C0h C1h 60h
SCL V
SS
V
DD
1 1 0 0 0 0 1 - C2h C3h 61h
SCL V
DD
V
SS
1 1 0 0 0 1 0 - C4h C5h 62h
SCL V
DD
V
DD
1 1 0 0 0 1 1 - C6h C7h 63h
SDA V
SS
V
SS
1 1 0 0 1 0 0 - C8h C9h 64h
SDA V
SS
V
DD
1100101 - CAh CBh 65h
SDA V
DD
V
SS
1100110 - CCh CDh 66h
SDA V
DD
V
DD
1100111 - CEh CFh 67h
SCL V
SS
SCL1110000 - E0h E1h 70h
SCL V
SS
SDA1110001 - E2h E3h 71h
SCL V
DD
SCL1110010 - E4h E5h 72h
SCL V
DD
SDA1110011 - E6h E7h 73h
SDA V
SS
SCL1110100 - E8h E9h 74h
SDA V
SS
SDA 1 1 1 0 1 0 1 - EAh EBh 75h
SDA V
DD
SCL1110110 - ECh EDh 76h
SDA V
DD
SDA 1 1 1 0 1 1 1 - EEh EFh 77h
Table 4. PCA9670 address map
…continued
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