Datasheet

PCA9575 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 4 — 20 May 2014 24 of 42
NXP Semiconductors
PCA9575
16-bit I
2
C-bus and SMBus, level translating, low voltage GPIO
10. Application design-in information
11. Limiting values
Address pin connections shown are for the 28-pin version.
Device address configured as 0100 101Xb for this example.
P0_0, P0_2, P0_3 configured as outputs; P0_1, P0_4 to P0_7 and P1_0 to P1_7 configured as inputs.
Fig 17. Typical application
PCA9575
P0_0
P0_1
SCL
SDA
V
DD
SCL
SDA
P0_2
P0_3
V
DD
V
SS
MASTER
CONTROLLER
V
SS
V
DD
= 1.1 V
to 3.6 V
SUBSYSTEM 1
(e.g., temp. sensor)
INT
SUBSYSTEM 2
(e.g., counter)
RESET
controlled switch
(e.g., CBT device)
A
B
enable
INT
V
DD(IO)0
INT
1.1 kΩ 2 kΩ
SUBSYSTEM 3
(e.g., alarm system)
ALARM
P0_4
P0_5
V
DD(IO)0
A3
P0_6
P0_7
1.6 kΩ1.6 kΩ
RESETRESET
V
DD(IO)0
= 3.6 V
002aad573
A2
P1_0
P1_1
P1_2
P1_3
P1_4
P1_5
P1_6
P1_7
V
DD(IO)1
V
DD(IO)1
= 3.6 V
A1
A0
SUBSYSTEM 4
(e.g., RF module)
CTRL
10 DIGIT
NUMERIC
KEYPAD
Table 21. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
V
DD
supply voltage 0.5 +4.0 V
V
DD(IO)0
input/output supply voltage 0 V
SS
 0.5 V
DD
+0.5 V
V
DD(IO)1
input/output supply voltage 1 V
SS
 0.5 V
DD
+0.5 V
I
I/O
input/output current - 5mA
I
I
input current - 20 mA
I
DD
supply current - 90 mA
I
SS
ground supply current - 90 mA
P
tot
total power dissipation - 75 mW
T
stg
storage temperature 65 +150 C
T
amb
ambient temperature 40 +85 C