PCA9536YZPR

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The PCA9536YZPR is an interface-I/O expanders. It provides an efficient and easy way to interface microprocessors to I/O devices. It can be used to interface various types of I/O devices such as input switches, LEDs, relay coils, motors, and various other outputs. The PCA9536YZPR combines low power consumption, high data throughput, and a wide range of functions for microcontroller-based I/O designs.

The PCA9536YZPR is a 28-pin integrated circuit (IC) designed to interface digital I/O devices such as switches, LEDs, relays, and motors. It is a low-power, low-cost device, making it an ideal solution for embedded applications. The PCA9536YZPR features a 2-channel input/output (I/O) port, 3-channel addressing and 5-channel latch registers, as well as an integrated 10K-ohm pull-up and 3-wire address decode logic. The device also has an interrupt output and two general-purpose inputs for controlling address decoding and interrupt request signals.

The PCA9536YZPR utilizes a 3-wire serial interface for communication between the microcontroller and I/O devices. The 3-wire serial interface consists of the address (A0-A2) and data (D0-D7) lines, as well as the Read/Write (RW) line for general control transactions. The PCA9536YZPR supports various command sequences such as write multiple bytes, read multiple bytes, write single bytes and read single bytes. The device also supports internal command sequences, which allow the user to control the behavior of the device such as setting port logic type, setting I/O port direction, and reading port logic states.

The PCA9536YZPR functions as an input/output expander and provides two separate 8-bit registers to store the data. These registers can be written to or read from using 3-wire serial commands. The device also has two dedicated registers that are used to store two byte-wide latch values. The latch values can be written to or read from using 3-wire serial commands as well.

The PCA9536YZPR has two hardware interrupt pins, INT0 and INT1, which can be used to detect the logic changes of the I/O pins. When an I/O pin changes, the corresponding interrupt pin will generate an active-low interrupt signal. This signal can be used to trigger an interrupt service routine (ISR) on the microcontroller, allowing the user to handle the logic change of the pin.

The PCA9536YZPR is a versatile I/O expansion solution for microcontroller applications. It is easy to use and provides flexibility for the user. Its low power consumption and high data throughput also make it an ideal choice for embedded designs. Furthermore, the device’s two dedicated latch registers make it a great choice for controlling a variety of output devices.

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