MCP23008-E/SO Allicdata Electronics
Allicdata Part #:

MCP23008-E/SO-ND

Manufacturer Part#:

MCP23008-E/SO

Price: $ 0.66
Product Category:

Integrated Circuits (ICs)

Manufacturer: Microchip Technology
Short Description: IC I/O EXPANDER I2C 8B 18SOIC
More Detail: I/O Expander 8 I²C 1.7MHz 18-SOIC
DataSheet: MCP23008-E/SO datasheetMCP23008-E/SO Datasheet/PDF
Quantity: 3189
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
1 +: $ 0.66000
10 +: $ 0.64020
100 +: $ 0.62700
1000 +: $ 0.61380
10000 +: $ 0.59400
Stock 3189Can Ship Immediately
$ 0.66
Specifications
Series: --
Packaging: Tube 
Lead Free Status / RoHS Status: --
Part Status: Active
Moisture Sensitivity Level (MSL): --
Number of I/O: 8
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: 18-SOIC (0.295", 7.50mm Width)
Supplier Device Package: 18-SOIC
Base Part Number: MCP23008
Description

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I/O expanders are a type of integrated circuit (IC) that provide input/output expansion for microcontrollers, which allow the microcontroller to control more input/output pins than are available on the chip. The MCP23008-E/SO is one of a variety of I/O expanders available, and is typically used for expansion of I/O for embedded system designs. It is an 8-bit input/output expander that is designed to operate from a single supply. It features a programmable interrupt system to help reduce complexity in low-power, low-pin-count applications.

The MCP23008-E/SO is a highly integrated and cost effective device that provides a simple solution for adding more I/O capacity to any application without needing to use more pins on the microcontroller. It is an 8-bit expander that can be used to add 8 additional input/output pins to a microcontroller, allowing for eight additional signals to be raised, lowered, or driven by the microcontroller. This device can be used to expand the number of available pins or to provide additional power to the system, such as powering on an LED, or monitoring a temperature sensor.

The MCP23008-E/SO uses a simple and efficient two-wire interface, SPI/I2C, to communicate with the system microcontroller. It provides a boost of output current in order to drive more demanding external loads such as LEDs, relays, and motors. The MCP23008-E/SO reduces board space requirements, as it is an all-in-one module, containing 8 programmable input/outputenables, a pull-up/pull-down resistor, a programmable interrupt system, and an I/O active indicator.

The MCP23008-E/SO is capable of being operated in either an 8-bit parallel interface mode or an I2C mode. The 8-bit parallel interface mode allows for expansion of eight individual I/O pins. Each pin can be independently configured as either an input or output, which allows for the high-flexibility needed for many applications. The I2C mode allows for a maximum of 130 expanders to be connected to the same bus, which is a great benefit for providing long range I/O expansion.

When in I2C mode, the MCP23008-E/SO can be configured to respond to a range of predefined addresses. This specialization can be used to assign separate control functions to each expander in order to increase functionality. For example, the expander can be used to read data from sensors and add the readings to a predefined register in the microcontroller.

The MCP23008-E/SO also has a programmable interrupt system that can be used to alert the system microcontroller when one of the inputs triggers a condition. The system can be configured such that the interrupt line is always asserted when an input is in the active state, or when the input state has changed. This provides an additional layer of responsiveness to the system, which can help minimize the response time when an event occurs.

In summary, the MCP23008-E/SO is a highly integrated and cost effective 8-bit input/output expander that is designed to be used in embedded system designs. It features a two-wire SPI/I2C interface for communication with the system microcontroller, along with a programmable interrupt system for detecting external events. It is capable of being operated in either a parallel or I2C mode, and can be used to add 8 additional I/O pins to the system, or to provide additional power.}

The specific data is subject to PDF, and the above content is for reference

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