PCA9535BS,118

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PCA9535BS,118 is an integrated chip produced by NXP semiconductor company. It is a general I/O expander, which extends the I/O of the microcontroller or CPU. The chip has a low power consumption (2uA/operation) and can be used in a wide range of general-purpose I/O ports. Besides, it also provides consumers with a number of advantages in terms of system cost, configurability, easy application, and power management.

Overview

The PCA9535BS,118 integrated circuit (IC) is a single chip that operates as an I/O port expander. It is capable of driving up to eight bits of general-purpose I/O. It is designed to increase the number of ports available for applications that require more than eight bits. This IC is compatible with a variety of microcontrollers and CPUs. It is a versatile component with a low power consumption, and can be used in a wide range of applications.

Features

The PCA9535BS,118 IC includes several features that make it a good choice for extending the number of I/O ports. First, it is highly configurable, with the ability to customize inputs, outputs, and other parameters separately. Furthermore, the chip supports Schmitt-style input debouncing, which allows for better noise immunity and less bounce on inputs. Additionally, the chip features an I2C (Inter-Integrated Circuit) interface, allowing users to access the I/O ports with ease and convenience. Low power consumption is also among the chip’s benefits—it consumes only 2uA/operation, which is ideal for portable devices. Last but not least, the chip is compliant with RoHS regulations.

Applications

The PCA9535BS,118 is suitable for a variety of applications. One example is in the consumer electronics field, where this chip can be used to add an extra number of ports to an electronic device. Moreover, the chip can be used to extend interfaces on medical and industrial equipment. Additionally, due to its low power consumption, the chip’s applications extend to portable devices such as handheld GPS devices and consumer electronics. The chip can be found in a variety of applications, ranging from automotive to consumer electronics to home automation.

Working Principle

The working principle of the PCA9535BS,118 is relatively simple. It is based on a I2C bus, which is a two-wire serial data protocol. The chip interfaces directly with two standard I2C signals, SDA (data) and SCL (clock). The chip can be programmed to configure a number of features, such as input/output directions and pull-up resistors. When enabled, an I/O pin can output a logic level by writing a value to the appropriate I/O register and then providing a clock signal. Similarly, the chip can input data by reading an I/O register.

In conclusion, the PCA9535BS,118 is a highly-configurable, low-power I/O port expander. It is excellent for applications where a number of additional I/O are needed. The chip allows for configurability, and supports a wide range of applications and devices. Its low power consumption makes it suitable for portable devices as well.

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