Datasheet

PCA9674_PCA9674A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 7 — 30 May 2013 10 of 40
NXP Semiconductors
PCA9674; PCA9674A
Remote 8-bit I/O expander for Fm+ I
2
C-bus with interrupt
[1] The PCA9674A does not acknowledge when AD2, AD1, AD0 follows this configuration.
V
DD
V
DD
SCL1000110 - 8Ch 8Dh 46h
V
DD
V
DD
SDA1000111 - 8Eh 8Fh 47h
SCL SCL V
SS
1001000 - 90h 91h 48h
SCL SCL V
DD
1001001 - 92h 93h 49h
SCL SDA V
SS
1001010 - 94h 95h 4Ah
SCL SDA V
DD
1001011 - 96h 97h 4Bh
SDA SCL V
SS
1001100 - 98h 99h 4Ch
SDA SCL V
DD
1001101 - 9Ah 9Bh 4Dh
SDA SDA V
SS
1001110 - 9Ch 9Dh 4Eh
SDA SDA V
DD
1001111 - 9Eh 9Fh 4Fh
SCLSCLSCL1101000 - D0h D1h 68h
SCLSCLSDA1101001 - D2h D3h 69h
SCLSDASCL1101010 - D4h D5h 6Ah
SCLSDASDA1101011 - D6h D7h 6Bh
SDASCLSCL1101100 - D8h D9h 6Ch
SDASCLSDA1101101 - DAh DBh 6Dh
SDASDASCL1101110 - DCh DDh 6Eh
SDASDASDA1101111 - DEh DFh 6Fh
SCL V
SS
V
SS
1111000 - F0h F1h 78h
SCL V
SS
V
DD
1111001 - F2h F3h 79h
SCL V
DD
V
SS
1111010 - F4h F5h 7Ah
SCL V
DD
V
DD
1111011 - F6h F7h 7Bh
SDA V
SS
V
SS
1111100 - F8h
[1]
F9h
[1]
7Ch
[1]
SDA V
SS
V
DD
1111101 - FAh FBh 7Dh
SDA V
DD
V
SS
1111110 - FCh FDh 7Eh
SDA V
DD
V
DD
1111111 - FEh FFh 7Fh
SCL V
SS
SCL0000000 - 00h
[1]
01h
[1]
00h
[1]
SCL V
SS
SDA0000001 - 02h 03h 01h
SCL V
DD
SCL0000010 - 04h 05h 02h
SCL V
DD
SDA0000011 - 06h 07h 03h
SDA V
SS
SCL0000100 - 08h 09h 04h
SDA V
SS
SDA0000101 - 0Ah 0Bh 05h
SDA V
DD
SCL0000110 - 0Ch 0Dh 06h
SDA V
DD
SDA0000111 - 0Eh 0Fh 07h
Table 5. PCA9674A address map
…continued
Pin connectivity Address of PCA9674A Address byte value 7-bit
hexadecimal
address
without R/W
AD2 AD1 AD0 A6 A5 A4 A3 A2 A1 A0 R/W Write Read