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I/O Expanders | PCA9554

SMBus I/O Port with Interrupt, 8-bit I2C

Obsolete

Datasheet

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Overview

The PCA9554 is a CMOS device that provides 8鈭抌it parallel input/output port expansion for I2C and SMBus compatible applications. This I/O expander provides a simple solution in applications where additional I/Os are needed: sensors, power switches, LEDs, pushbuttons, and fans. The PCA9554 consist of an input port register, an output port register, a configuration register, a polarity inversion register and an I2C/SMBus鈭抍ompatible serial interface. Any of the eight I/Os can be configured as an input or output by writing to the configuration register. The system master can invert the PCA9554 input data by writing to the active鈭抙igh polarity inversion register. The PCA9554 features an active low interrupt output which indicates to the system master that an input state has changed. The device鈥檚 extended addressing capability allows up to 8 devices to share the same bus.

  • White Goods
  • Handheld Devices
  • Data Communications

  • Dishwashers
  • Washing Machines
  • Cell Phones
  • PDAs
  • Digital Cameras
  • Routers
  • Hubs and Servers

  • 400 kHz I2C Bus Compatible
  • 2.3 V to 5.5 V Operation
  • Low Standby Current
  • 5 V Tolerant I/Os
  • 8 I/O Pins that Default to Inputs at Power鈭抲p
  • High Drive Capability
  • Individual I/O Configuration
  • Polarity Inversion Register
  • Active Low Interrupt Output
  • Internal Power鈭抩n Reset
  • No Glitch on Power鈭抲p
  • Noise Filter on SDA/SCL Inputs
  • Cascadable up to 8 Devices
  • Industrial Temperature Range
  • 16鈭抣ead TSSOP Package
  • These Devices are Pb鈭扚ree, Halogen Free/BFR Free and are RoHSCompliant

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PCA9554DTR2G

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Obsolete

CAD Model

Pb

A

H

P

TSSOP-16

948AN

1

260

REEL

2000

N

8

8 Slave ID Addresses

2.3

5.5

Yes

Yes

No

10

Price N/A

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Reliability Data

Die Related Summary Data

Device: PCA9554DTR2G

Equivalent to wafer fab process: CMOS SUB

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

CMOS SUB

2

920154574

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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