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PCA9534ADBR Datasheet(PDF) 2 Page - Texas Instruments

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Part # PCA9534ADBR
Description  REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PCA9534ADBR Datasheet(HTML) 2 Page - Texas Instruments

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PCA9534A
REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER
WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS
SCPS141B – SEPTEMBER 2006 – REVISED MARCH 2007
Three hardware pins (A0, A1, and A2) are used to program and vary the fixed I2C address and allow up to eight
devices to share the same I2C bus or SMBus.
The PCA9534A is pin-to-pin and I2C address compatible with the PCF8574A. However, software changes are
required due to the enhancements in the PCA9534A over the PCF8574A.
The PCA9534A is a low-power version of the PCA9554A. The only difference between the PCA9534A and
PCA9554A is that the PCA9534A eliminates an internal I/O pullup resistor, which dramatically reduces power
consumption in the standby mode when the I/Os are held low.
The PCA9534A and PCA9534 are identical, except for their fixed I2C address. This allows for up to 16 of these
devices (8 of each) on the same I2C bus.
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
QFN – RGT
Reel of 3000
PCA9534ARGTR
PREVIEW
QFN – RGV
Reel of 2500
PCA9534ARGVR
PREVIEW
QSOP – DBQ
Reel of 2500
PCA9534ADBQR
PDA534A
Tube of 40
PCA9534ADW
SOIC – DW
PCA9534A
Reel of 2000
PCA9534ADWR
–40
°C to 85°C
Reel of 2000
PCA9534ADBR
SSOP – DB
PDA534A
Tube of 80
PCA9534ADB
Tube of 90
PCA9534APW
TSSOP – PW
PD534A
Reel of 2000
PCA9534APWR
TVSOP – DGV
Reel of 2000
PCA9534ADGVR
PD534A
(1)
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
2
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