Datasheet

PCF8574_PCF8574A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 5 — 27 May 2013 15 of 33
NXP Semiconductors
PCF8574; PCF8574A
Remote 8-bit I/O expander for I
2
C-bus with interrupt
11. Limiting values
12. Thermal characteristics
Table 7. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
V
DD
supply voltage 0.5 +7 V
I
DD
supply current - 100 mA
I
SS
ground supply current - 100 mA
V
I
input voltage V
SS
 0.5 V
DD
+0.5 V
I
I
input current - 20 mA
I
O
output current - 25 mA
P
tot
total power dissipation - 400 mW
P/out power dissipation per output - 100 mW
T
j(max)
maximum junction temperature - 125 C
T
stg
storage temperature 65 +150 C
T
amb
ambient temperature operating 40 +85 C
Table 8. Thermal characteristics
Symbol Parameter Conditions Typ Unit
R
th(j-a)
thermal resistance from junction
to ambient
SO16 package 115 C/W
SSOP20 package 136 C/W