PCAL9554B datasheet(23/42 Pages) NXP

23 / 42 page

PCAL9554B_PCAL9554C

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Product data sheet

Rev. 2 — 10 December 2012

23 of 42

NXP Semiconductors

PCAL9554B; PCAL9554C

Low-voltage 8-bit I2C-bus/SMBus low power I/O port

[1]

For IDD, all typical values are at nominal supply voltage (1.8 V, 2.5 V, 3.3 V, 3.6 V or 5 V VDD) and Tamb =25 C. Except for IDD, the

typical values are at VDD = 3.3 V and Tamb =25 C.

[2]

The total current sourced by all I/Os must be limited to 160 mA, and total current sunk by all I/Os must be limited to 200 mA.

[3]

Typical value for Tamb =25 C. VOL = 0.4 V and VDD = 3.3 V. Typical value for VDD <2.5 V, VOL =0.6 V.

IDD

supply current

SDA, P port, A0, A1, A2;

VI on SCL, SDA = VDD or VSS;

VI on P port and A0, A1, A2 = VDD;

IO =0mA;I/O =inputs; fSCL = 400 kHz

VDD = 3.6 V to 5.5 V

A

VDD = 2.3 V to 3.6 V

6.5

A

VDD = 1.65 V to 2.3 V

A

SCL, SDA, P port, A0, A1, A2;

VI on SCL, SDA = VDD or VSS;

VI on P port and A0, A1, A2 = VDD;

IO =0mA;I/O =inputs; fSCL = 0 kHz

VDD = 3.6 V to 5.5 V

1.5

A

VDD = 2.3 V to 3.6 V

3.2

A

VDD = 1.65 V to 2.3 V

0.5

1.7

A

Active mode; P port, A0, A1, A2;

VI on P port and A0, A1, A2 = VDD;

IO =0mA;I/O =inputs;

fSCL = 400 kHz, continuous register read

VDD = 3.6 V to 5.5 V

125

A

VDD = 2.3 V to 3.6 V

A

VDD = 1.65 V to 2.3 V

A

with pull-ups enabled;

P port, A0, A1, A2;

VI on SCL, SDA = VDD or VSS;

VI on P port = VSS;

VI on A0, A1, A2 = VDD or VSS;

IO = 0 mA; I/O = inputs with pull-up enabled;

fSCL =0 kHz

VDD = 1.65 V to 5.5 V

0.55

0.75

I

additional quiescent

supply current

SCL, SDA; one input at VDD  0.6 V, other

inputs at VDD or VSS; VDD = 1.65 V to 5.5 V

--25

A

P port, A0, A1; one input at VDD  0.6 V,

other inputs at VDD or VSS;

VDD = 1.65Vto 5.5V

--80

A

input capacitance

VI =VDD or VSS; VDD = 1.65V to 5.5V

Cio

input/output capacitance

SDA, SCL;

VI/O =VDD or VSS;VDD =1.65Vto5.5V

78pF

Pport;

VI/O =VDD or VSS;VDD =1.65Vto5.5V

-7.5

8.5

Rpu(int)

internal pull-up resistance

input/output

100

150



Rpd(int)

internal pull-down resistance input/output

100

150



Table 22.

Static characteristics …continued

Tamb = 40 C to +85 C; VDD = 1.65 V to 5.5 V; unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ[1]

Max

Unit

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