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PCA9674ATS 데이터시트(PDF) 7 Page - NXP Semiconductors

부품명 PCA9674ATS
상세설명  Remote 8-bit I/O expander for Fm I2C-bus with interrupt
PDF  34 Pages
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제조업체  PHILIPS [NXP Semiconductors]
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PCA9674ATS 데이터시트(HTML) 7 Page - NXP Semiconductors

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PCA9674_PCA9674A_2
© NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 02 — 12 October 2006
7 of 34
NXP Semiconductors
PCA9674/74A
Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt
The last bit of the first byte defines the operation to be performed. When set to logic 1 a
read is selected, while a logic 0 selects a write operation.
When AD2, AD1 and AD0 are held to VDD or VSS, the same address as the PCF8574 or
PCF8574A is applied.
7.1.1 Address maps
Fig 8.
PCA9674/74A address
R/W
002aab636
A6
A5
A4
A3
A2
A1
A0
programmable
slave address
Table 5.
PCA9674 address map
AD2
AD1
AD0
A6
A5
A4
A3
A2
A1
A0
Address
VSS
SCL
VSS
001000020h
VSS
SCL
VDD
001000122h
VSS
SDA
VSS
001001024h
VSS
SDA
VDD
001001126h
VDD
SCL
VSS
001010028h
VDD
SCL
VDD
00101012Ah
VDD
SDA
VSS
00101102Ch
VDD
SDA
VDD
00101112Eh
VSS
SCL
SCL
001100030h
VSS
SCL
SDA
0
01100132h
VSS
SDA
SCL
001101034h
VSS
SDA
SDA
001101136h
VDD
SCL
SCL
001110038h
VDD
SCL
SDA
0
0111013Ah
VDD
SDA
SCL
00111103Ch
VDD
SDA
SDA
00111113Eh
VSS
VSS
VSS
010000040h
VSS
VSS
VDD
010000142h
VSS
VDD
VSS
010001044h
VSS
VDD
VDD
010001146h
VDD
VSS
VSS
010010048h
VDD
VSS
VDD
01001014Ah
VDD
VDD
VSS
01001104Ch
VDD
VDD
VDD
01001114Eh



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