PCA9537DP datasheet(12/24 Pages) NXP

12 / 24 page

PCA9537_5

Product data sheet

Rev. 05 — 7 May 2009

12 of 24

NXP Semiconductors

PCA9537

4-bit I2C-bus and SMBus low power I/O port with interrupt and reset

[1]

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

[2]

Each I/O must be externally limited to a maximum of 25 mA and the device must be limited to a maximum current of 100 mA.

[3]

The total current sourced by all I/Os must be limited to 85 mA.

I/Os

VIL

LOW-level input voltage

−0.5

+0.8

VIH

HIGH-level input voltage

2.0

5.5

IOL

LOW-level output current

VOL = 0.5 V

VDD = 2.3 V

[2] 810

VDD = 3.0 V

[2] 814

VDD = 4.5 V

[2] 817

VOL = 0.7 V

VDD = 2.3 V

[2] 10

VDD = 3.0 V

[2] 10

VDD = 4.5 V

[2] 10

VOH

HIGH-level output voltage

IOH = −8mA

VDD = 2.3 V

[3] 1.8

VDD = 3.0 V

[3] 2.6

VDD = 4.5 V

[3] 4.1

IOH = −10 mA

VDD = 2.3 V

[3] 1.7

VDD = 3.0 V

[3] 2.5

VDD = 4.5 V

[3] 4.0

leakage current

VI =VDD =VSS

−1-

µA

input capacitance

Interrupt INT

IOL

LOW-level output current

VOL = 0.4 V

IOH

HIGH-level output current

VOL = 0.4 V

−1-

µA

Select input RESET

VIL

LOW-level input voltage

−0.5

+0.8

VIH

HIGH-level input voltage

2.0

5.5

leakage current

VI =VDD =VSS

−1-

µA

Table 9.

Static characteristics …continued

VDD = 2.3 V to 5.5 V; VSS =0V; Tamb = −40 °C to +85 °C; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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