PCA9543B datasheet(13/23 Pages) NXP

13 / 23 page

PCA9543A_43B_43C_5

Product data sheet

Rev. 05 — 17 November 2008

13 of 23

NXP Semiconductors

PCA9543A/43B/43C

2-channel I2C-bus switch with interrupt logic and reset

[1]

For operation between published voltage ranges, refer to the worst-case parameter in both ranges.

[2]

VDD must be lowered to 0.2 V in order to reset part.

Table 8.

Static characteristics

VDD = 4.5 V to 5.5 V; VSS = 0 V; Tamb = −40 °C to +85 °C; unless otherwise speciﬁed.

See Table 7 on page 12 for VDD = 2.3 V to 3.6 V.[1]

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Supply

VDD

supply voltage

4.5

5.5

IDD

supply current

Operating mode; VDD = 5.5 V;

no load; VI =VDD or VSS;

fSCL = 100 kHz

100

µA

Istb

standby current

Standby mode; VDD = 5.5 V;

no load; VI =VDD or VSS;

fSCL = 0 kHz

0.2

µA

VPOR

power-on reset voltage

no load; VI =VDD or VSS

[2] -

1.7

2.1

Input SCL; input/output SDA

VIL

LOW-level input voltage

−0.5

+0.3VDD

VIH

HIGH-level input voltage

0.7VDD

-6

IOL

LOW-level output current

VOL = 0.4 V

VOL = 0.6 V

leakage current

VI =VDD or VSS

−1-

µA

input capacitance

VI =VSS

Select inputs A0, A1, INT0 to INT3, RESET

VIL

LOW-level input voltage

−0.5

+0.3VDD

VIH

HIGH-level input voltage

0.7VDD

-VDD + 0.5

ILI

input leakage current

VI =VDD or VSS

−1

+50

µA

input capacitance

VI =VSS

-2

Pass gate

Ron

on-state resistance

VDD = 4.5 V to 5.5 V; VO = 0.4 V;

IO =15mA

4924

Ω

Vo(sw)

switch output voltage

Vi(sw) =VDD = 5.0 V;

Io(sw) = −100 µA

3.6

Vi(sw) =VDD = 4.5 V to 5.5 V;

Io(sw) = −100 µA

2.6

4.5

leakage current

VI =VDD or VSS

−1

+100

µA

Cio

input/output capacitance

VI =VSS

-3

INT output

IOL

LOW-level output current

VOL = 0.4 V

IOH

HIGH-level output current

+100

µA

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