CS82C55A-5Z96

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Number of I/O:	24
Interface:	Parallel
Interrupt Output:	No
Features:	--
Output Type:	Open Drain
Current - Output Source/Sink:	2.5mA
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	44-LCC (J-Lead)
Supplier Device Package:	44-PLCC (16.58x16.58)
Base Part Number:	82C55A

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CS82C55A-5Z96 Application Field and Working Principle

The CS82C55A-5Z96 is an I/O Expander used for common interface between processor and peripheral devices with communication protocol support for the I²C Interface. This means the device is used to interface peripherals with processor’s Analog-to-Digital Converter (ADC) or Digital-to-Analog Converter (DAC) protocols.

Description

The CS82C55A-5Z96 is an I/O Expander device with a total of 9 bits of bidirectional I/O. An additional 3 bytes of non-volatile memory are available for user programmable status and sleep mode control. It is capable of both 8 and 10-bit parallel data transfer, and is based on the I²C protocol. The device includes an I²C interface controller, an internally generated clock, and the I²C frame format. It can also directly interface with a host processor via the Serial Peripheral Interface (SPI).

Features

The CS82C55A-5Z96 I/O Expander has several features which make it attractive for use in applications where it controls connections between peripherals, or where I²C bus is used for data transfer. It is pin-compatible with versions of earlier I/O expanders from the same manufacturer and has the following features:

• Serial or Parallel I/O – Both Serial and Parallel data addressing modes are supported.
• Virtual Private Network (VPN) – This feature simplifies data transmission when multiple I/O Expanders are connected to the same host processor.
• Sleep Mode – This feature allows the device to enter and remain in sleep mode until a command or data send request is received.
• Onboard Clock – The built-in clock enables synchronization of I/O transactions with the host processor clock.
• Programmable Address – A programmable address locks in the desired communication interface when sending data to the CS82C55A-5Z96 I/O Expander.
• Simplified Control – Making call and response functions as easy as possible helps reduce design time and improve system stability.
• 3-Wire Communication Interface – The 3-wire connection makes it easy to install the CS82C55A-5Z96 I/O Expander into existing systems.
• Advanced Power Management – An advanced power management system ensures that the device operates only when it is required to minimize power consumption.

Applications

The CS82C55A-5Z96 I/O Expander is an ideal solution for applications requiring an intelligent and easy to use interface between processors, ADCs, and DACs. Examples of applications are:

• Data Acquisition – The device is ideal for connecting analog/digital data sources to a processor for conversion into digital data.
• Industrial Control – Its advanced power management capabilities make the CS82C55A-5Z96 I/O Expander a suitable choice for controlling or monitoring remote equipment throughout a facility.
• Remote Sensing – The ability to effectively transmit and receive data in real-time makes the CS82C55A-5Z96 the perfect tool for operating communication link between a remote control and a master device.
• Networked Devices – The device can be used to bridge the gap between multiple devices over a common I²C bus, making it possible to share data between them.
• Instrumentation – The CS82C55A-5Z96 I/O expander is ideal for data acquisition, monitoring, and controlling a variety of instrumentation.

Working Principle

The CS82C55A-5Z96 I/O Expander operates by connecting a master device, such as a processor, to the I/O Expander through the I²C bus interface. The master device sends a command or data to the I/O Expander and the I/O Expander then sends or receives the data or command to or from the connected peripheral devices. The CS82C55A-5Z96 I/O Expander has an internal clock so that it can always keep track of the data transactions that are occurring. It also has a virtual private network (VPN) feature that helps to encrypt the data that is being transmitted to provide a secure communication between the processor and the peripheral devices.The CS82C55A-5Z96 I/O Expander also has a programmable address lock to prevent unauthorized access to the I/O Expander. The device also includes a power-down/low-power-mode feature which allows the user to conserve power by allowing the device to go into a low-power state when it is not actively sending or receiving data.

Conclusion

The CS82C55A-5Z96 I/O Expander is a versatile and reliable device for connecting peripherals to processors. Its advanced features and capabilities make it ideal for data acquisition, remote sensing, and industrial control applications. Its ability to transfer data up to 10-bit resolution, support VPN, and include 3 bytes of non-volatile memory ensure that the CS82C55A-5Z96 I/O Expander is able to meet the requirements of today’s most demanding applications.

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