MCP25050-E/SL

Series:	--
Packaging:	Tube
Part Status:	Active
Number of I/O:	8
Interface:	CAN V2.0b
Interrupt Output:	No
Features:	ADC, EEPROM, POR, PWM
Output Type:	Push-Pull
Current - Output Source/Sink:	25mA
Clock Frequency:	25MHz
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	14-SOIC
Base Part Number:	MCP25050

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Introduction

The MCP25050-E/SL is a member of the Microchip family of devices specifically designed to expand I/O port functionality through a digital multiplexing interface. This device enables the use of up to eight different digital I/O ports with only one port. The device provides up to 8-bit I/O port expansion and can be used with TTL digital logic or stand-alone digital ICs. Additionally, the MCP25050-E/SL can be used to communicate between standard parallel port and serial communication interfaces.

Application Field

The MCP25050-E/SL is ideally suited for interfacing with a variety of digital applications. These include: remote sensing and control, data acquisition, GPS and navigation systems, medical instrumentation, consumer products, industrial automation, embedded systems, robotics, and many others. In addition to providing port expansion, the device can also be used in embedded applications requiring isolated digital communication. It is also suitable for applications requiring high-speed data conversion between two or more digital interface standards.

Working Principle

The MCP25050-E/SL is an expandable I/O port expander which works by multiplexing the available digital I/O port lines. The digital I/O port is divided into two ports, with each port containing up to four digital inputs and four digital outputs. The device then multiplexes the signals, sending digital data between each port.The device works by having the internal logic circuit monitor the digital inputs and outputs. If a digital input is detected, the logic circuit will drive an output signal to the corresponding output port. Similarly, if a digital output is detected, the logic circuit will check for an accompanying input signal and then drive the output to the proper state.The device also provides output port direction control. This feature allows the device to be configured so that some of the output ports are configured as “read only”, meaning that no digital data is sent from these ports to the attached devices. All other output ports can then be used for data transmission.

Conclusion

The MCP25050-E/SL is a digital multiplexing I/O port expander with many uses in both consumer and industrial applications. This device can be used to increase digital I/O port functionality, simplify data communication between two or more devices, and improve system performance. The device can be easily configured and programmed to interface with a variety of digital protocols, making it a versatile tool in the embedded systems designer’s arsenal.

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