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PCA9543AD

2-channel I2C switch with interrupt logic and reset

Philips Electronics 

Philips Semiconductors

PCA9543A

2-channel I2C switch with interrupt logic and reset

9. Application design-in information

VDD = 2.7 V to 5.5 V

SDA

SCL

I2C/SMBus master

VDD = 3.3 V

SDA

SCL

INT

SD0

SC0

INT0

RESET

PCA9543A

A1

SD1

A0

SC1

VSS

INT1

002aab184

V = 2.7 V to 5.5 V

see note (1)

channel 0

V = 2.7 V to 5.5 V

see note (1)

channel 1

(1) If the device generating the interrupt has an open-drain output structure or can be 3-stated, a

pull-up resistor is required.

If the device generating the interrupt has a totem-pole output structure and cannot be 3-stated,

a pull-up resistor is not required.

The interrupt inputs should not be left floating.

Fig 13. Typical application

10. Limiting values

Table 6: Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to

VSS (ground = 0 V). [1]

Symbol Parameter

Conditions

Min

Max

Unit

VDD

supply voltage

–0.5

+7.0

V

VI

input voltage

II

input current

IO

output current

IDD

supply current

ISS

ground supply current

–0.5

+7.0

V

-

±20

mA

-

±25

mA

-

±100

mA

-

±100

mA

Ptot

Tstg

Tamb

total power dissipation

storage temperature

operating ambient temperature

-

400

mW

–60

+150

°C

–40

+85

°C

[1] The performance capability of a high-performance integrated circuit in conjunction with its thermal

environment can create junction temperatures which are detrimental to reliability. The maximum junction

temperature of this integrated circuit should not exceed 150 °C.

9397 750 14316

Product data sheet

Rev. 03 — 21 March 2005

© Koninklijke Philips Electronics N.V. 2005. All rights reserved.

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