Datasheet

PCA9537_5 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 05 — 7 May 2009 12 of 24
NXP Semiconductors
PCA9537
4-bit I
2
C-bus and SMBus low power I/O port with interrupt and reset
[1] V
DD
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
V
IL
LOW-level input voltage −0.5 - +0.8 V
V
IH
HIGH-level input voltage 2.0 - 5.5 V
I
OL
LOW-level output current V
OL
= 0.5 V
V
DD
= 2.3 V
[2]
810- mA
V
DD
= 3.0 V
[2]
814- mA
V
DD
= 4.5 V
[2]
817- mA
V
OL
= 0.7 V
V
DD
= 2.3 V
[2]
10 13 - mA
V
DD
= 3.0 V
[2]
10 19 - mA
V
DD
= 4.5 V
[2]
10 24 - mA
V
OH
HIGH-level output voltage I
OH
= −8mA
V
DD
= 2.3 V
[3]
1.8 - - V
V
DD
= 3.0 V
[3]
2.6 - - V
V
DD
= 4.5 V
[3]
4.1 - - V
I
OH
= −10 mA
V
DD
= 2.3 V
[3]
1.7 - - V
V
DD
= 3.0 V
[3]
2.5 - - V
V
DD
= 4.5 V
[3]
4.0 - - V
I
L
leakage current V
I
=V
DD
=V
SS
−1-+1µA
C
i
input capacitance - 5 10 pF
Interrupt
INT
I
OL
LOW-level output current V
OL
= 0.4 V 3 13 - mA
I
OH
HIGH-level output current V
OL
= 0.4 V −1-+1µA
Select input
RESET
V
IL
LOW-level input voltage −0.5 - +0.8 V
V
IH
HIGH-level input voltage 2.0 - 5.5 V
I
L
leakage current V
I
=V
DD
=V
SS
−1-+1µA
Table 9. Static characteristics
…continued
V
DD
= 2.3 V to 5.5 V; V
SS
=0V; T
amb
= − 40 ° C to +85 ° C; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit