PCA9501_4 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 04 — 10 February 2009 15 of 28
NXP Semiconductors
PCA9501
8-bit I
2
C-bus and SMBus I/O port with interrupt, 2-kbit EEPROM
11. Static characteristics
[1] 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.
Table 5. Static characteristics
V
DD
= 3.3 V; T
amb
=
−
40
°
Cto+85
°
C; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
Supply
V
DD
supply voltage 2.5 3.3 3.6 V
I
DDQ
standby current A0 to A5; WC = HIGH - - 60 µA
I
DD1
supply current read - - 1 mA
I
DD2
supply current write - - 2 mA
V
POR
power-on reset voltage - - 2.4 V
Input SCL; input/output SDA
V
IL
LOW-level input voltage −0.5 - +0.3V
DD
V
V
IH
HIGH-level input voltage 0.7V
DD
- 5.5 V
I
OL
LOW-level output current V
OL
= 0.4 V 3 - - mA
I
LI
input leakage current V
I
=V
DD
or V
SS
−1- +1µA
C
i
input capacitance V
I
=V
SS
--7pF
I/O expander port
V
IL
LOW-level input voltage −0.5 - +0.3V
DD
V
V
IH
HIGH-level input voltage 0.7V
DD
- 5.5 V
I
IHL(max)
input current through protection diodes −400 - +400 µA
I
OL
LOW-level output current V
OL
=1V
[1]
10 25 - mA
I
OH
HIGH-level output current V
OH
=V
SS
30 100 300 µA
I
OHt
transient pull-up current - 2 - mA
C
i
input capacitance - - 10 pF
C
o
output capacitance - - 10 pF
Address inputs A0 to A5;
WC input
V
IL
LOW-level input voltage −0.5 - +0.3V
DD
V
V
IH
HIGH-level input voltage 0.7V
DD
- 5.5 V
I
LI
input leakage current V
I
=V
DD
−1- +1µA
pull-up; V
I
=V
SS
10 25 100 µA
Interrupt output
INT
I
OL
LOW-level output current V
OL
= 0.4 V 1.6 - - mA
I
L
leakage current V
I
=V
DD
or V
SS
−1- +1µA
