Remote 8-Bit I2C And SMBus I/O Expander With Interrupt Output And Configuration Registers

This 8-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.3-V to 5.5-V VCC operation. It provides general-purpose remote I/O expansion for most Microcontroller families via the I2C Interface [serial Clock (SCL), serial data (SDA)]. The PCA9554A consists of one 8-bit Configuration (input or output selection), Input, Output, and Polarity Inversion (active high or active low) Registers At power on, the I/Os are configured as inputs with a weak pullup to VCC. However, the system master CAN enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The data for each input or output is kept in the corresponding Input or Output Register The polarity of the Input Port Register CAN be inverted with the Polarity Inversion Register All Registers CAN be read by the system master. By Texas Instruments
Part Manufacturer Description Datasheet Samples
PCA9554APW Texas Instruments Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-TSSOP -40 to 85
PCA9554ADBRG4 Texas Instruments Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-SSOP -40 to 85
PCA9554APWR Texas Instruments Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-TSSOP -40 to 85
PCA9554ARGVRG4 Texas Instruments Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-VQFN -40 to 85
PCA9554ADBQR Texas Instruments Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-SSOP -40 to 85
PCA9554ARGTRG4 Texas Instruments Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-QFN -40 to 85
PCA9554ARGVR Texas Instruments Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-VQFN -40 to 85
PCA9554ADBG4 Texas Instruments Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-SSOP -40 to 85
PCA9554ADGVRG4 Texas Instruments Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-TVSOP -40 to 85
PCA9554ADBR Texas Instruments Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-SSOP -40 to 85
PCA9554A 's PackagesPCA9554A 's pdf datasheet
PCA9554ADB SSOP
PCA9554ADBG4 SSOP
PCA9554ADBQR SSOP
PCA9554ADBR SSOP
PCA9554ADBRG4 SSOP
PCA9554ADGV TVSOP
PCA9554ADGVR TVSOP
PCA9554ADGVRG4 TVSOP
PCA9554ADW SOIC
PCA9554ADWG4 SOIC
PCA9554ADWR SOIC
PCA9554ADWRG4 SOIC
PCA9554APW TSSOP
PCA9554APWG4 TSSOP
PCA9554APWR TSSOP
PCA9554APWRG4 TSSOP
PCA9554ARGTR QFN
PCA9554ARGVR QFN
PCA9554ARGVRG4 QFN

PCA9554A pdf datasheet download


PCA9554A Pinout, Pinouts
PCA9554A pinout,Pin out
This is one package pinout of PCA9554A,If you need more pinouts please download PCA9554A's pdf datasheet.

PCA9554A Application circuits
PCA9554A circuits
This is one application circuit of PCA9554A,If you need more circuits,please download PCA9554A's pdf datasheet.


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