PCA9554PWR ,Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-TSSOP -40 to 85Block Diagram... 132 Description....... 18.2 Device Functional Modes.... 143 Revision History...... ..
PCA9554PWRG4 ,Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-TSSOP -40 to 85Sample & Support &Product Tools &TechnicalCommunityBuyFolder Documents SoftwarePCA9554SCPS128C–JULY ..
PCA9554PW-T , 8-bit I2C-bus and SMBus I/O port with interrupt
PCA9555 ,16-bit I2C and SMBus I/O port with interruptFeatures... 18.4 Device Functional Modes.... 142 Applications..... 18.5 Programming..... 153 Descri ..
PCA9555APW ,Low-voltage 16-bit I虏C-bus I/O port with interrupt and weak pull-upFeatures and benefits2 I C-bus to parallel port expander Operating power supply voltage range of ..
PCA9555BS ,16-bit I2C and SMBus I/O port with interruptPin configuration — HVQFNFigure 1.
PESDXS2UAT ,Double ESD protection diodes in SOT23 packageAPPLICATIONSPIN DESCRIPTION• Computers and peripherals1 anode 1• Communication systems2 anode 2• Au ..
PEX8111-BB66BC , PCI Express to PCI Bridge
PEX8114-AA13BI , ExpressLane™ PCI Express-to-PCI/PCI-X Bridge
PEX8505-AA25BIG , Flexible & Versatile PCI Express® Switch
PEX8508-AC25BI , Flexible & Versatile PCI Express® Switch
PEX8516-BB25BIG , Flexible & Versatile PCI Express Switch
PCA9554-PCA9554DGVR-PCA9554DW-PCA9554PWR-PCA9554PWRG4
Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-SSOP -40 to 85
DB, DBQ, DGV, DW, OR PW PACKAGE
(TOP VIEW)VCC
SDA
SCL
INT
RGV PACKAGE
(TOP VIEW)51415
SDAA0A1
INT
SCL
RGT PACKAGE
(TOP VIEW)SDA1415A1
INT
SCL
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community• Open-Drain Active-Low Interrupt Output operation.It provides general-purpose I/O• Operating Power-Supply Voltage Rangeof 2.3V expansion for most microcontroller families theI2C 5.5V interface [serial clock (SCL), serial data 5-V Tolerant I/Os The PCA9554 consists of one 8-bit 400-kHz FastI2C Bus (inputor output selection), Input, Output, Polarity
Inversion (active high or active low) At• Three Hardware Address Pins Allowupto Eight power on, the I/Os are configured as withaDeviceson theI2 C/SMBus weak pullupto VCC. However, the system can• Input/Output Configuration Register enable the I/Os as either inputsor outputs writing Polarity Inversion Register to the I/O configuration bits. The data input outputis keptin the corresponding Output• Internal Power-On Reset register. The polarityof the Input Port can be• Power-Up WithAll Channels Configuredas Inputs inverted with the Polarity Inversion All• No Glitch On Power Up registers canbe readby the system master. Latched Outputs With High-Current Drive The system master can reset the PCA9554in theMaximum Capabilityfor Directly Driving LEDs eventofa timeout or other improper by Latch-Up Performance Exceeds 100 mA Per utilizing the power-on reset feature, the
registers in their default state and theJESD 78, ClassII2 C/SMBus state machine.• ESD Protection Exceeds JESD22
The PCA9554 open-drain interruptis– 2000-V Human-Body Model (A114-A)
activated when any input state differs its– 200-V Machine Model (A115-A) corresponding Input Port register stateto– 1000-V Charged-Device Model (C101) indicateto the system master thatan has
(1) Forall available packages, see the orderableat
the endofthe datasheet.
