PCA9518A_3 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 03 — 3 December 2008 11 of 23
NXP Semiconductors
PCA9518A
Expandable 5-channel I
2
C-bus hub
9. Static characteristics
[1] For operation between published voltage ranges, refer to worst-case parameter in both ranges.
[2] V
IL
specification is for the first LOW level seen by the SDAn/SCLn lines.
[3] V
ILc
is for the second and subsequent LOW levels seen by the SDAn/SCLn lines.
Table 4. Static characteristics
V
DD
= 3.0 V to 3.6 V
[1]
; V
SS
=0V; T
amb
=
−
40
°
Cto+85
°
C; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
Supplies
V
DD
supply voltage 3.0 3.3 3.6 V
I
CCH
HIGH-level supply current both channels HIGH
V
DD
= 3.6 V;
SDAn = SCLn = V
DD
- 7.5 10 mA
I
CCL
LOW-level supply current both channels LOW
V
DD
= 3.6 V;
one SDA and one SCL = V
SS
;
other SDA and SCL open
- 9 11 mA
I
CCLc
contention LOW-level supply current V
DD
= 3.6 V;
SDAn = SCLn = V
SS
- 9 11 mA
Input SCL; input/output SDA
V
IH
HIGH-level input voltage SCL, SDA 0.7V
DD
- 5.5 V
V
IL
LOW-level input voltage SCL, SDA
[2]
−0.5 - +0.25V
DD
V
V
ILc
contention LOW-level input voltage SCL, SDA
[3]
−0.5 - +0.4 V
V
IK
input clamping voltage I
I
= −18 mA - - −1.2 V
I
LI
input leakage current V
I
= 3.6 V - - ±1 µA
I
IL
LOW-level input current SCL, SDA; V
I
= 0.2 V - - 20 µA
V
OL
LOW-level output voltage I
OL
=20µA or 6 mA 0.45 0.52 0.6 V
V
OL
−V
ILc
difference between LOW-level
output and LOW-level input voltage
contention
guaranteed by design - - 70 mV
C
i
input capacitance V
I
= 3 V or 0 V - 6 8 pF
Enable 1 to Enable 4 (EN1 to EN4)
V
IH
HIGH-level input voltage 2.0 - 5.5 V
V
IL
LOW-level input voltage −0.5 - +0.8 V
I
IL
LOW-level input current V
I
= 0.2 V; EN1 to EN4 - 10 30 µA
I
LI
input leakage current −1-+1 µA
C
i
input capacitance V
I
= 3.0 V or 0 V - 3 7 pF
Expansion pins (EXPSCL1, EXPSCL2, EXPSDA1, EXPSDA2)
V
IH
HIGH-level input voltage EXPxxxn 0.6V
DD
- 5.5 V
V
IL
LOW-level input voltage EXPxxxn −0.5 - +0.4V
DD
V
I
IL
LOW-level input current V
I
= 0.2 V; EXPxxxn - - 5 µA
V
OL
LOW-level output voltage I
OL
=12mA - - 0.5 V
C
i
input capacitance V
I
= 3.0 V or 0 V - 6 8 pF
