
Allicdata Part #: | MCP23017-E/SO-ND |
Manufacturer Part#: |
MCP23017-E/SO |
Price: | $ 0.78 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Microchip Technology |
Short Description: | IC I/O EXPANDER I2C 16B 28SOIC |
More Detail: | I/O Expander 16 I²C 1.7MHz 28-SOIC |
DataSheet: | ![]() |
Quantity: | 5407 |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
1 +: | $ 0.78000 |
10 +: | $ 0.75660 |
100 +: | $ 0.74100 |
1000 +: | $ 0.72540 |
10000 +: | $ 0.70200 |
Series: | -- |
Packaging: | Tube |
Lead Free Status / RoHS Status: | -- |
Part Status: | Active |
Moisture Sensitivity Level (MSL): | -- |
Number of I/O: | 16 |
Interface: | I²C |
Interrupt Output: | Yes |
Features: | POR |
Output Type: | Push-Pull |
Current - Output Source/Sink: | 25mA |
Clock Frequency: | 1.7MHz |
Voltage - Supply: | 1.8 V ~ 5.5 V |
Operating Temperature: | -40°C ~ 125°C |
Mounting Type: | Surface Mount |
Package / Case: | 28-SOIC (0.295", 7.50mm Width) |
Supplier Device Package: | 28-SOIC |
Base Part Number: | MCP23017 |
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I/O Expanders, such as the MCP23017-E/SO, are integrated circuits (ICs) used in embedded interface applications. They allow a processor to control more input/output (I/O) signals than it can directly address with its own I/O pins. The MCP23017-E/SO is a 16-bit, I2C interface I/O expander that interfaces with any I2C or SPI communications interface. The MCP23017-E/SO offers flexible general purpose I/O expansion for most microcontroller families via the I2C interface. It can also be used for several other functions such as for creating LCD/Sensors or for creating Analog-to-Digital Converters (ADCs).
Application Fields
The MCP23017-E/SO is designed for use in a broad range of embedded controls and interfaces. Applications include data acquisition systems, remote data logging applications, home automation, human-machine interfaces (HMIs), industrial environmental monitoring and control, audio/visual systems and factory automation.
Data acquisition is a key application area for the MCP23017-E/SO. The IC can be easily used to gather data from a variety of sensors, make decisions based on that data, and use its GPIO to control actuators such as motors and relays. This makes it ideal for maker projects and home automation.
The IC can also be used in medical Instruments, such as pulse oximeters and blood pressure monitors, where it monitors the analog signal output of the instrument and helps control the LED lights and LCD displays. The IC can also be used in commercial applications such as shopping kiosks, ATM machines, and vending machines, where it is used to monitor user I/O, such as scanning barcodes, inputting data into the machine, and controlling motors.
Working Principle
The MCP23017-E/SO is a 16-bit I/O expander that uses the I2C bus for communication with the host processor. It has two general purpose I/O (GPIO) banks with 8 GPIO pins each, as well as an interrupt pin (INTP) and an enable/disable pin (EN).
The GPIO pins can be configured to operate in either input or output mode via the I2C bus. The output mode supports push-pull, open-drain, and Schmitt trigger operation. In addition, each GPIO pin also has a configurable pull-up or pull-down resistor.
Inputs are sampled at a frequency of 8kHz with a programmable filter duration. Interrupts can be generated on either a rising edge, falling edge, or low level on any input pin. Interrupts can also be used to generate wakeup signals on the host processor.
The enable/disable pin (EN) can be used to power down the IC while retaining the state of the configuration registers and the GPIO pin states. This pin can also be used as a reset line to reset the IC to its default state.
The MCP23017-E/SO is available in a compact 28 pin SSOP (Small Outline) package and operates over a temperature range of -40°C to +85°C.
The specific data is subject to PDF, and the above content is for reference
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