PCA9535PW,112

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PCA9535PW,112 is an advanced I/O expander from NXP Semiconductors. It is a straightforward and reliable I/O controller that is designed to improve the performance of embedded systems. The PCA9535PW,112 provides easy access to connection points that can take up up to 16 I/O lines. The chip does not require any additional power and offers a user-friendly interface for adding and removing I/O pins.

The PCA9535PW,112 is most commonly used in embedded systems. It is used to add and remove I/O pins without having to wire up a new device or making any connection changes. The I/O expander is also used in applications such as robots, remote systems, security systems, and lighting applications. By providing an easy access to I/O pins, the PCA9535PW,112 is an efficient and cost-effective solution for embedded systems that need more than 16 I/O lines.

The PCA9535PW,112 features an on-chip I2C interface, allowing it to be accessed by any I2C controller. It has an active low reset, which is used to reset the device to its default configuration. It also has two address pins and two interrupt pins, allowing for up to four devices to be connected. The chip comes in an 8-pin DIP package and is supplied with an operating voltage from 2.25 to 3.6V.

The PCA9535PW,112 is capable of handling both digital and analog inputs. For digital inputs, it can support up to seven types of logic level inputs ranging from active high, active low, two-level, open-drain, capability, and active-high weak pull-up. For analog, it can support two-wire, three-wire, and four-wire analog inputs. It also has an input inverter, which can be used to invert the digital inputs.

The PCA9535PW,112 is also capable of handling outputs, both digital and analog. For digital outputs, it can support up to five types of logic level outputs ranging from push-pull, open-drain, two-level, active-high, and active-low. For analog outputs, it can support two-wire, three-wire, and four-wire analog outputs. It also has an output inverter, which can be used to drive the output signal high or low.

The PCA9535PW,112 has an on-chip temperature sensor, which can be used to measure the temperature of the device. It can also monitor the current of the on-chip amplifiers and is capable of generating pulse width modulation (PWM) and watchdog timers. The chip also features a 12-bit I2C interface, which is used to communicate with other I2C devices.

In conclusion, the PCA9535PW,112 is a reliable and cost-effective I/O expander. Its user-friendly interface and wide range of inputs and outputs make it suitable for a wide range of embedded applications. It is a straightforward way to add and remove I/O pins without needing to make any changes to the existing system. The on-chip temperature sensor, current monitors, and PWM generator provide additional functionality for improved system performance.

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