PCA9554ADWRG4 ,Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-SOIC -40 to 85Sample & Support &Product Tools &TechnicalCommunityBuyFolder Documents SoftwarePCA9554ASCPS127E–SEP ..
PCA9554APW ,8-bit I虏C-bus and SMBus I/O port with interruptPin configuration — 16-pin DIP, SO, SSOP, TSSOP Figure 2.
PCA9554APWR ,Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-TSSOP -40 to 85Maximum Ratingsover operating free-air temperature range (unless otherwise noted)MIN MAX UNITV Supp ..
PCA9554APWRG4 ,Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-TSSOP -40 to 85Features 2 Description2This 8-bit I/O expander for the two-line bidirectional1• I C to Parallel Por ..
PCA9554ARGTR ,Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-QFN -40 to 85Features... 1 8 Detailed Description........ 138.1 Functional
PCA9554ARGVR ,Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-VQFN -40 to 856 Specifications(1)6.1 Absolute
PESD5V0X1BQ ,Ultra low capacitance bidirectional ESD protection diodesGeneral descriptionUltra low capacitance bidirectional ElectroStatic Discharge (ESD) protection dio ..
PESD5V0X1BT ,Ultra low capacitance bidirectional ESD protection diodesFeaturesn Bidirectional ESD protection of one line n ESD protection up to 9 kVn Unidirectional ESD ..
PESD5V2S2UT ,Double ESD protection diodes in SOT23 packageAPPLICATIONSPINNING• Computers and peripheralsPIN DESCRIPTION• Communication systems1 cathode 1• Au ..
PESD5Z12 ,Low capacitance unidirectional ESD protection diodesFeaturesn ESD protection of one line n Low leakage current: I <1nARMn Low diode capacitance n ESD p ..
PESD5Z12 ,Low capacitance unidirectional ESD protection diodesApplicationsn Computers and peripherals n Portable electronicsn Audio and video equipment n Subscri ..
PESD5Z3.3 ,Low capacitance unidirectional ESD protection diodesLimiting valuesTable 6.
PCA9554ADBR-PCA9554ADGVR-PCA9554ADWR-PCA9554ADWRG4-PCA9554APWR-PCA9554APWRG4-PCA9554ARGTR-PCA9554ARGVR
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
RGT PACKAGE
(TOP VIEW)1415
SDAA0A1
SCL
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PCA9554A• Open-Drain Active-Low Interrupt Output operation.It provides general-purpose remote I/O• Operating Power-Supply Voltage Rangeof 2.3 expansion for most microcontroller families via theI2C 5.5V interface [serial clock (SCL), serial data (SDA)]. 5-V Tolerant I/Os The PCA9554A consistsof one 8-bit Configuration 400-kHz FastI2C Bus (inputor output selection), Input, Output, and Polarity
Inversion (active high or active low) registers. At• Three Hardware Address Pins Allowupto Eight power on, the I/Os are configured as inputs withaDeviceson theI2 C/SMBus weak pullupto VCC. However, the system master can• Input/Output Configuration Register enable the I/Os as either inputsor outputs by writing Polarity Inversion Register to the I/O configuration bits. The data for each input outputis keptin the corresponding Inputor Output• Internal Power-On Reset register. The polarityof the Input Port register can be• Power-Up WithAll Channels Configuredas Inputs inverted with the Polarity Inversion register. All• No Glitchon Power Up registers canbe readby the system master. Latched Outputs With High-Current Drive The system master can reset the PCA9554Ain theMaximum Capabilityfor Directly Driving LEDs eventofa timeout or other improper operation by Latch-Up Performance Exceeds 100 mA Per utilizing the power-on reset feature, which puts the
registers in their default state and initializes theJESD 78, ClassII2 C/SMBus state machine.• ESD Protection Exceeds JESD22
The PCA9554A open-drain interrupt (INT) outputis– 2000-V Human-Body Model (A114-A)
activated when any input state differs from its– 200-V Machine Model (A115-A) corresponding Input Port register state andis usedto– 1000-V Charged-Device Model (C101) indicateto the system master thatan input state has
changed.
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe datasheet.
