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PCA9539AHF

Low voltage 16-bit I2C-bus I/O port with interrupt and reset; I2C-bus to parallel port expander\nPin and function compatible with PCA9539\nOperating power supply voltage range of 1.65 V to 5.5 V\nLow standby current consumption:1.5 μA (typical at 5 V VDD)\n1.0 μA (typical at 3.3 V VDD)\nSchmitt-trigger action allows slow input transition and better switching noise immunityat the SCL and SDA inputsVhys = 0.10 x VDD (typical)\n5 V tolerant I/Os\nActive LOW reset input (RESET)\nOpen-drain active LOW interrupt output (INT)\n400 kHz Fast-mode I2C-bus\nInternal power-on reset\nPower-up with all channels configured as inputs\nNo glitch on power-up\nLatched outputs with 25 mA drive maximum capability for directly driving LEDs\nLatch-up performance exceeds 100 mA per JESD78, Class II\nESD protection exceeds JESD22:2000 V Human Body Model (A114-A)\n1000 V Charged-Device Model (C101)\nPackages offered: TSSOP24, HWQFN24\n;

The PCA9539A is a low-voltage 16-bit General Purpose Input/Output (GPIO) expanderwith interrupt and reset for I2C-bus/SMBus applications. NXP I/O expanders provide asimple solution when additional I/Os are needed while keeping interconnections to aminimum, for example, in ACPI power switches, sensors, push buttons, LEDs, fan control,etc.\nIn addition to providing a flexible set of GPIOs, the wide VDD range of 1.65 V to 5.5 Vallows the PCA9539A to interface with next-generation microprocessors andmicrocontrollers where supply levels are dropping down to conserve power.\nThe PCA9539A contains the PCA9539 register set of four pairs of 8-bit Configuration,Input, Output, and Polarity Inversion registers.\nThe PCA9539A is a pin-to-pin replacement to the PCA9539, and other industry-standardpart numbers. A more fully featured part, PCAL9539A is also available with Agile I/Ofeatures. See the respective data sheet for more details.\nThe PCA9539A open-drain interrupt (INT) output is activated when any input state differsfrom its corresponding Input Port register state and is used to indicate to the systemmaster that an input state has changed.\nINT can be connected to the interrupt input of a microcontroller. By sending an interruptsignal on this line, the remote I/O can inform the microcontroller if there is incoming dataon its ports without having to communicate via the I2C-bus. Thus, the PCA9539A canremain a simple slave device.\nThe device outputs have 25 mA sink capabilities for directly driving LEDs while consuminglow device current.\nThe power-on reset sets the registers to their default values and initializes the device statemachine. In the PCA9539A, the RESET pin causes the same reset/default I/O inputconfiguration to occur without de-powering the device, holding the registers and I2C-busstate machine in their default state until the RESET input is once again HIGH. This inputrequires a pull-up to VDD.\nTwo hardware pins (A0, A1) select the fixed I2C-bus address and allow up to four devicesto share the same I2C-bus/SMBus.\n

PCA9539BS

16-bitI2CandSMBus,lowpowerI/Oportwithinterruptandreset

DESCRIPTION ThePCA9539isa24-pinCMOSdevicethatprovide16bitsofGeneralPurposeparallelInput/Output(GPIO)expansionwithinterruptandresetforI2C/SMBusapplicationsandwasdevelopedtoenhancethePhilipsfamilyofI2CI/Oexpanders.I/Oexpandersprovidesasimplesolutionwhen

PCA9539D

16-bitI2CandSMBus,lowpowerI/Oportwithinterruptandreset

DESCRIPTION ThePCA9539isa24-pinCMOSdevicethatprovide16bitsofGeneralPurposeparallelInput/Output(GPIO)expansionwithinterruptandresetforI2C/SMBusapplicationsandwasdevelopedtoenhancethePhilipsfamilyofI2CI/Oexpanders.I/Oexpandersprovidesasimplesolutionwhen

PCA9539DB

REMOTE16-BITI2CANDSMBusLOW-POWERI/OEXPANDERWITHINTERRUPTOUTPUT,RESET,ANDCONFIGURATIONREGISTERS

PCA9539DB

SMBusLow-PowerI/OExpander

PCA9539DBQR

REMOTE16-BITI2CANDSMBusLOW-POWERI/OEXPANDERWITHINTERRUPTOUTPUT,RESET,ANDCONFIGURATIONREGISTERS

PCA9539DBQR

SMBusLow-PowerI/OExpander

PCA9539DBR

REMOTE16-BITI2CANDSMBusLOW-POWERI/OEXPANDERWITHINTERRUPTOUTPUT,RESET,ANDCONFIGURATIONREGISTERS

PCA9539DBR

SMBusLow-PowerI/OExpander

PCA9539DGVR

SMBusLow-PowerI/OExpander