IQ82C55A

The IQ82C55A is a single-chip CMOS output/input expander designed to provide an easy and cost-effective interface solution for a variety of applications. The IQ82C55A features an eight-bit wide I/O bus for connecting to the system microcontroller or any other device that uses an 8-bit parallel output/input system. To reduce complexity and costs, it also offers an onboard reset circuitry. The IQ82C55A has a wide range of applications and can be used in industrial, automotive, medical, scientific, and other applications where an I/O expansion is needed.

The IQ82C55A provides a simple and straightforward interface, which allows the user to quickly and easily configure the device regardless of the target application. The device requires no external components, as all necessary configuration information is stored in on-chip memory. Furthermore, the onboard hardware reset functionality eliminates the need for external reset hardware.

The IQ82C55A operates on a 3.3V power supply and is rated for a maximum operating temperature of 125°C. It is interface-compatible with a variety of popular microcontrollers and peripheral ICs, including the popular Arduino line. Additionally, the device is fully software compatible with all popular development systems, such as the Arduino IDE.

The IQ82C55A has some additional features that make it particularly suitable for mobile applications or systems that have multiple pressure points. The device has built-in over-voltage and over-current protection as well as thermal shutdown and brownout protection. Additionally, the device includes a watchdog timer for system reliability. The device is also available in a 5V and a 3.3V version, allowing for greater flexibility in system design.

The IQ82C55A uses an internal oscillator to produce its own clock frequency, which makes it an ideal choice for battery-powered applications. Additionally, it supports both synchronous and asynchronous operation, allowing for faster and reliable data transmission. The 8-bit width of the data and address buses simplifies system design and reduces pin count. Lastly, the device supports interrupt requests from the connected system, allowing for efficient use of the system\'s resources.

The IQ82C55A is an ideal choice for a variety of applications where an I/O expander is needed, such as industrial, automotive, medical, and scientific applications. Its simple interface and onboard reset circuitry make it easy to configure and use. Additionally, its 8-bit wide data and address buses reduce system design complexity and pin count. The device also offers a variety of protection features, including an internal watchdog timer, over-voltage and over-current protection, and thermal shutdown and brownout protection. Lastly, the IQ82C55A can be interfaced with popular microcontrollers and supports both synchronous and asynchronous operation.