PCA9557
NXP Semiconductors
8-bit I2C-bus and SMBus I/O port with reset
3.3 V
5 V
V
DD
V
100 kΩ
V
DD
DD
LED
LED
IOn
IOn
002aac660
002aac661
Fig 19. High value resistor in parallel with
the LED
Fig 20. Device supplied by a lower voltage
10. Limiting values
Table 9.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
VDD
Parameter
Conditions
Min
Max
+6
Unit
V
supply voltage
input voltage
input current
0.5
VI
VSS 0.5
5.5
V
II
-
-
20
400
mA
A
IIHL(max)
maximum allowed input current
VI VDD or VI VSS
through protection diode (IO1 to IO7)
VI/O
voltage on an input/output pin
input/output current
I/O as an input, except IO0
IO0 as an input
VSS 0.5
5.5
V
VSS 0.5
5.5
V
II/O
IO0 as an input
-
+400
20
50
85
A
mA
mA
mA
mA
mW
C
-
IO(IOn)
IDD
output current on pin IOn
supply current
-
-
ISS
ground supply current
total power dissipation
storage temperature
ambient temperature
-
100
200
+150
+85
Ptot
-
Tstg
Tamb
65
40
operating
C
PCA9557
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© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 7 — 10 December 2013
14 of 30
NXP [ NXP ]
