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PCA9672

Remote 8-bit I/O expander for Fm I2C-bus with interrupt and reset

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PCA9672

Smart, simple solutions for the 12 most common design concerns

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PCA9672D

Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt and reset; I2C-bus to parallel port expander\n1 MHz I2C?bus interface (Fast-mode Plus I2C-bus)\nOperating supply voltage 2.3 V to 5.5 V with 5.5?V tolerant I/Os held to VDD with 100?μA current source\n8-bit remote I/O pins that default to inputs at power-up\nLatched outputs with 25?mA sink capability directly drive LEDs\nTotal package sink capability of 200?mA\nActive LOW reset input\nActive LOW open-drain interrupt output\nSixteen programmable slave addresses using two address pins\nReadable device ID (manufacturer, device type, and revision)\n-40 °C to +85 °C operation\nESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22?C101\nLatch-up testing is done to JEDEC standard JESD78 which exceeds 100?mA\nPackages offered: SO16, TSSOP16, HVQFN16\n;

The PCA9672 provides general-purpose remote I/O expansion via the two-wirebidirectional I2C?bus (serial clock (SCL), serial data (SDA)).\nThe devices consist of eight quasi-bidirectional ports, 1?MHz 30?mA drive I2C?businterface, three hardware address inputs and a reset input operating between 2.3?V and5.5?V. 1?MHz I2C?bus Fast-mode Plus (Fm+) can support PWM dimming of LEDs, andhigher I2C?bus drive 30?mA allows more devices to be on the bus without the need for busbuffers. The quasi-bidirectional port can be independently assigned as an input to monitorinterrupt status or keypads, or as an output to activate indicator devices such as LEDs.The system master can read from the input port or write to the output port through a singleregister.\nThe low current consumption of 2.5?μA (typical, static) is great for mobile applications andthe latched output ports have 25?mA high current sink drive capability for directly drivingLEDs.\nThe PCA9672 has two hardware address pins, allowing sixteen of each device to be onthe same I2C?bus without the need for bus buffers, so there can be supporting up to128 I/Os (for example, 128 LEDs).\nThe active LOW open-drain interrupt output (INT) can be connected to the interrupt logicof the microcontroller and is activated when any input state differs from its correspondinginput port register state. It is used to indicate to the microcontroller that an input state haschanged and the device needs to be interrogated without the microcontroller continuouslypolling the input register via the I2C?bus.\nThe internal Power-On Reset (POR) and active LOW hardware reset pin (RESET)initialize the I/Os as inputs with a weak internal pull-up 100?μA current source.\n

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PCA9672PW

Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt and reset; I2C-bus to parallel port expander\n1 MHz I2C?bus interface (Fast-mode Plus I2C-bus)\nOperating supply voltage 2.3 V to 5.5 V with 5.5?V tolerant I/Os held to VDD with 100?μA current source\n8-bit remote I/O pins that default to inputs at power-up\nLatched outputs with 25?mA sink capability directly drive LEDs\nTotal package sink capability of 200?mA\nActive LOW reset input\nActive LOW open-drain interrupt output\nSixteen programmable slave addresses using two address pins\nReadable device ID (manufacturer, device type, and revision)\n-40 °C to +85 °C operation\nESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22?C101\nLatch-up testing is done to JEDEC standard JESD78 which exceeds 100?mA\nPackages offered: SO16, TSSOP16, HVQFN16\n;

The PCA9672 provides general-purpose remote I/O expansion via the two-wirebidirectional I2C?bus (serial clock (SCL), serial data (SDA)).\nThe devices consist of eight quasi-bidirectional ports, 1?MHz 30?mA drive I2C?businterface, three hardware address inputs and a reset input operating between 2.3?V and5.5?V. 1?MHz I2C?bus Fast-mode Plus (Fm+) can support PWM dimming of LEDs, andhigher I2C?bus drive 30?mA allows more devices to be on the bus without the need for busbuffers. The quasi-bidirectional port can be independently assigned as an input to monitorinterrupt status or keypads, or as an output to activate indicator devices such as LEDs.The system master can read from the input port or write to the output port through a singleregister.\nThe low current consumption of 2.5?μA (typical, static) is great for mobile applications andthe latched output ports have 25?mA high current sink drive capability for directly drivingLEDs.\nThe PCA9672 has two hardware address pins, allowing sixteen of each device to be onthe same I2C?bus without the need for bus buffers, so there can be supporting up to128 I/Os (for example, 128 LEDs).\nThe active LOW open-drain interrupt output (INT) can be connected to the interrupt logicof the microcontroller and is activated when any input state differs from its correspondinginput port register state. It is used to indicate to the microcontroller that an input state haschanged and the device needs to be interrogated without the microcontroller continuouslypolling the input register via the I2C?bus.\nThe internal Power-On Reset (POR) and active LOW hardware reset pin (RESET)initialize the I/Os as inputs with a weak internal pull-up 100?μA current source.\n

恩XP

PCA9672BS

Remote 8-bit I/O expander for Fm I2C-bus with interrupt and reset

ETC

PCA9672D

Remote 8-bit I/O expander for Fm I2C-bus with interrupt and reset

ETC

PCA9672PW

Remote 8-bit I/O expander for Fm I2C-bus with interrupt and reset

ETC