PCA9549 datasheet(11/24 Pages) PHILIPS

11 / 24 page

PCA9549_1

Product data sheet

Rev. 01 — 11 July 2006

11 of 24

Philips Semiconductors

PCA9549

Octal bus switch with individually I2C-bus controlled enables

Static characteristics

[1]

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

[2]

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

Table 6.

Static characteristics

VDD = 2.3 V to 3.6 V; VSS = 0 V; Tamb = −40 °C to +85 °C; unless otherwise speciﬁed.

See Table 7 on page 12 for VDD = 4.5 V to 5.5 V[1].

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Supply

VDD

supply voltage

2.3

3.6

IDD

supply current

Operating mode; VDD = 3.6 V; no load;

VI =VDD or VSS; fSCL = 100 kHz

-20

µA

Istb

standby current

Standby mode; VDD = 3.6 V; no load;

VI =VDD or VSS

0.1

µA

VPOR

power-on reset voltage

no load; VI =VDD or VSS

[2] -

1.6

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 to A2, RESET

VIL

LOW-level input voltage

−0.5

+0.3VDD

VIH

HIGH-level input voltage

0.7VDD

-VDD + 0.5

ILI

input leakage current

pin at VDD or VSS

−1-

µA

input capacitance

VI =VSS

-2

Pass gate

Ron

ON-state resistance

VDD = 3.0 V to 3.6 V; VO = 0.4 V;

IO =15mA

-7

Ω

VDD = 2.3 V to 2.7 V; VO = 0.4 V;

IO =10mA

-8

Ω

Vo(sw)

switch output voltage

Vi(sw) =VDD = 3.3 V; Io(sw) = −100 µA

1.9

Vi(sw) =VDD = 3.0 V to 3.6 V;

Io(sw) = −100 µA

1.6

2.8

Vi(sw) =VDD = 2.5 V; Io(sw) = −100 µA

1.5

Vi(sw) =VDD = 2.3 V to 2.7 V;

Io(sw) = −100 µA

1.0

2.0

leakage current

VI =VDD or VSS

−1-

µA

Cio

input/output capacitance

VI =VSS

-3

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