PCA9518 datasheet(5/12 Pages) PHILIPS

tên linh kiện	PCA9518

Giải thích chi tiết về linh kiện	Expandable 5-channel I2C hub

PDF	12 Pages

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nhà sản xuất	PHILIPS [NXP Semiconductors]

Trang chủ	http://www.nxp.com

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Philips Semiconductors

Product data sheet

PCA9518

Expandable 5-channel I2C hub

2004 Sep 29

SW00974

BUS

MASTER

SUBSYSTEM 1

SDA

SDA0

SDA

SCL

SCL0

SCL

EN1

3.3 V

5 V

SDA1

SCL1

EN2

EN3

EN4

SDA

SCL

3.3 V

SDA2

SCL2

SDA

SCL

5 V

SDA3

SCL3

SDA

SCL

3.3 V

SDA4

SCL4

SDA0

SCL0

EN1

SDA1

SCL1

EN2

EN3

EN4

SDA2

SCL2

SDA3

SCL3

SDA4

SCL4

EXPSDA1

EXPSDA2

EXPSCL1

EXPSCL2

SUBSYSTEM 2

SUBSYSTEM 3

SUBSYSTEM 4

SUBSYSTEM 5

SDA

SCL

5 V

SDA

SCL

3.3 V

SUBSYSTEM 6

DISABLED

NOT CONNECTED

100 kHz

400 kHz

100 kHz

400 kHz

GND

VDD

PCA9518

DEVICE 2

PCA9518

DEVICE 1

3.3 V or 5 V

NOTE:

1. Only two of the five channels on the PCA9518 Device 2 are being used. EN3 and EN4 are connected to GND to disable channels 3 and 4

and/or SDA3/SCL3 and SDA4/SCL4 are pulled up to VCC. SDA0 and SCL0 can be used as a normal I2C port, but if unused then it must be

pulled-up to VCC since there is no enable pin.

Figure 4. Typical application:

Multiple expandable 5-channel I2C hubs

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