PCA9534A

SCPS141F – SEPTEMBER 2006 – REVISED JUNE 2010

www.ti.com

INT can be connected to the interrupt input of a microcontroller. By sending an interrupt signal on this line, the

remote I/O can inform the microcontroller if there is incoming data on its ports without having to communicate via

The device's outputs (latched) have high-current drive capability for directly driving LEDs. It has low current

consumption.

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.

ORDERING INFORMATION

ORDERABLE PART NUMBER

TOP-SIDE MARKING

QFN – RGT

Reel of 3000

PCA9534ARGTR

ZVJ

QFN – RGV

Reel of 2500

PCA9534ARGVR

PD534A

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, thermal data, and symbolization are available at www.ti.com/packaging.

(2)

For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

website at www.ti.com.

2

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