PCA9538PW,112 NXP Semiconductors, PCA9538PW,112 Datasheet - Page 11

• Manufacturer Part Number: PCA9538PW,112
• Description: IC I/O EXPANDER I2C 8B 16TSSOP
• Manufacturer: NXP Semiconductors

Specifications of PCA9538PW,112

• Interface: I²C, SMBus
• Number Of I /o: 8
• Interrupt Output: Yes
• Frequency - Clock: 400kHz
• Voltage - Supply: 2.3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Includes: POR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935277419112; PCA9538PW; PCA9538PW

NXP Semiconductors
7. Application design-in information
PCA9538_5
Product data sheet
Fig 11. Typical application
(5 V)
V
DD
Device address is 1110 000x for this example.
IO0, IO2, IO3 configured as outputs.
IO1, IO4, IO5 configured as inputs.
IO6, IO7 are not used and need 100 k pull-up resistors to protect them from floating.
CONTROLLER
MASTER
V
V
DD
SS
RESET
SDA
SCL
INT
10 k
10 k
10 k
8-bit I
10 k
2
Rev. 05 — 28 May 2009
C-bus and SMBus low power I/O port with interrupt and reset
SCL
SDA
INT
RESET
A1
A0
PCA9538
V
V
DD
SS
IO0
IO1
IO2
IO3
IO4
IO5
IO6
IO7
2 k
100 k
( 3)
enable
INT
RESET
(e.g., alarm system)
ALARM
(e.g., temp sensor)
A
B
SUB-SYSTEM 1
SUB-SYSTEM 2
SUB-SYSTEM 3
(e.g., counter)
PCA9538
controlled
switch
(e.g., CBT device)
© NXP B.V. 2009. All rights reserved.
002aae712
V
DD
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