PCA9535PW

16-bit I2C-bus and SMBus, low power I/O port with interrupt

Generaldescription ThePCA9535andPCA9535Care24-pinCMOSdevicesthatprovide16bitsofGeneralPurposeparallelInput/Output(GPIO)expansionforI2C-bus/SMBusapplicationsandwasdevelopedtoenhancetheNXPSemiconductorsfamilyofI2C-busI/Oexpanders.Theimprovementsincludehigherd

ETC

PCA9535PW

16-bit I2C-bus and SMBus, low power I/O port with interrupt

Generaldescription ThePCA9535andPCA9535Care24-pinCMOSdevicesthatprovide16bitsofGeneral PurposeparallelInput/Output(GPIO)expansionforI2C-bus/SMBusapplicationsandwas developedtoenhancetheNXPSemiconductorsfamilyofI2C-busI/Oexpanders.The improvementsincludehighe

ETC

PCA9535PW

16-bit I2C and SMBus, low power I/O port with interrupt

DESCRIPTION ThePCA9535isa24-pinCMOSdevicethatprovide16bitsofGeneralPurposeparallelInput/Output(GPIO)expansionforI2C/SMBusapplicationsandwasdevelopedtoenhancethePhilipsfamilyofI2CI/Oexpanders.Theimprovementsincludehigherdrivecapability,5VI/Otolerance,lowe

PHI

PCA9535PW

Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers; • I²C-bus to parallel port expander\n• Operating power supply voltage range of 2.3 V to 5.5 V\n• Ultra low standby current consumption:• 1 µA (maximum)\n\n• Schmitt-trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs• Vhys = 0.10 × VCC (typical)\n• Noise filter on SCL and SDA inputs\n\n• 5 V tolerant I/Os\n• 16 I/O pins which power up configured in input state\n• Open-drain active LOW interrupt output (INT)\n• 400 kHz Fast-mode I²C-bus\n• Internal power-on reset\n• No glitch on power-up\n• Latched outputs with 25 mA drive maximum capability for directly driving LEDs\n• Latch-up performance exceeds 100 mA per JESD78, Class II\n• ESD protection:• HBM ANSI/ESDA/JEDEC JS-001 Class 2 exceeds 2000 V\n• CDM ANSI/ESDA/JEDEC JS-002 Class C3 exceeds 1000 V\n\n• TSSOP24 package: plastic thin shrink small outline package; 24 leads; body width 4.4 mm\n• Specified from -40 °C to +85 °C\n;

The PCA9535 provides 16 bits of General Purpose Input/Output (GPIO) expansion for I²C-bus/SMBus applications. It is designed for a wide voltage range of 2.3 V to 5.5 V with interrupt. Nexperia GPIO expanders provide an elegant solution when additional IOs are needed while keeping the interconnections to a minimum, for example, in ACPI power switches, sensors, push buttons, LEDs and fan control. The PCA9535 contains a set of 8 bit Input, Output, Configuration and Polarity inversion registers. At power up all IOs default to inputs. Each IO can be configured as either input or output by changing the corresponding bit in the configuration register. The data for each input or output is stored in the corresponding input or output register. The polarity inversion register can be programmed to invert the polarity of the input register. The PCA9535 has an open-drain interrupt output which is activated when any one of the GPIO changes from its corresponding input port register state. The power on reset sets the registers to default values and initializes the device state machine. The PCA9535 has three address pins A0, A1 and A2 which can be used to configure the I²C bus slave address of the device. It allows up-to eight devices to share the same I²C-bus/SMBus.\n

PCA9535PW

16-bit I2C-bus and SMBus, low power I/O port with interrupt; • Operating power supply voltage range of 2.3 V to 5.5 V\n• 5 V tolerant I/Os\n• Polarity Inversion register\n• Active LOW interrupt output\n• Low standby current\n• Noise filter on SCL/SDA inputs\n• No glitch on power-up\n• Internal power-on reset\n• 16 I/O pins which default to 16 inputs\n• 0 Hz to 400 kHz clock frequency\n• ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101\n• Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA\n• Offered in four different packages: SO24, TSSOP24, HVQFN24 and HWQFN24\n;

The PCA9535 and PCA9535C are 24-pin CMOS devices that provide 16 bits of General Purpose parallel Input/Output (GPIO) expansion for I²C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of I²C-bus I/O expanders. The improvements include higher drive capability, 5 V I/O tolerance, lower supply current, individual I/O configuration, and smaller packaging. I/O expanders provide a simple solution when additional I/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc.\nThe PCA9535 and PCA9535C consist of two 8-bit Configuration (Input or Output selection), Input, Output and Polarity Inversion (active HIGH or active LOW operation) registers. 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 read register can be inverted with the Polarity Inversion register. All registers can be read by the system master. Although pin-to-pin and I²C-bus address compatible with the PCF8575, software changes are required due to the enhancements and are discussed in Application Note AN469.\nThe PCA9535 is identical to the PCA9555 except for the removal of the internal I/O pull-up resistor which greatly reduces power consumption when the I/Os are held LOW.\nThe PCA9535C is identical to the PCA9535 except that all the I/O pins are high-impedance open-drain outputs.\nThe PCA9535 and PCA9535C open-drain interrupt output is activated when any input state differs from its corresponding Input Port register state and is used to indicate to the system master that an input state has changed. The power-on reset sets the registers to their default values and initializes the device state machine.\nThree hardware pins (A0, A1, A2) vary the fixed I2C-bus address and allow up to eight devices to share the same I2C-bus/SMBus. The fixed I2C-bus address of the PCA9535 and PCA9535C are the same as the PCA9555 allowing up to eight of these devices in any combination to share the same I2C-bus/SMBus.\n

恩XP

PCA9535PW

REMOTE 16-BIT I2C AND SMBus, LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS

PCA9535PW

SMBus Low-Power I/O Expander

PCA9535PW

Package：24-TSSOP（0.173"，4.40mm 宽）；包装：管件 类别：集成电路（IC） I/O 扩展器 描述：IC I/O EXPANDER I2C 16B 24TSSOP

PCA9535PWE4

REMOTE 16-BIT I2C AND SMBus, LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS

PCA9535PWG4

SMBus Low-Power I/O Expander