Philips Semiconductors

Product data sheet

PCA9544A

2004 Sep 29

9

TYPICAL APPLICATION

PCA9544A

V = 2.7 – 5.5 V

SD0

SC0

V = 2.7 – 5.5 V

SD1

SC1

A1

A0

SDA

SCL

SW02268

SDA

SCL

A2

INT

INT1

INT0

CHANNEL 0

CHANNEL 1

V = 2.7 – 5.5 V

SD1

SC1

INT2

CHANNEL 2

V = 2.7 – 5.5 V

SD1

SC1

INT3

CHANNEL 3

NOTE:

1.

If the device generating the Interrupt has an open-drain output

structure or can be tri-stated, a pull-up resistor is required.

If the device generating the Interrupt has a totem-pole output

structure and cannot be tri-stated, a pull-up resistor is not

required.

The Interrupt inputs should not be left floating.

SEE NOTE (1)

SEE NOTE (1)

SEE NOTE (1)

SEE NOTE (1)

Figure 13. Typical application