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MCP23S08-E/SO

Name: MCP23S08-E/SO
Rating: 4.7 (12 reviews)

IC I/O EXPANDER SPI 8B 18SOIC

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製造商。部分 #MCP23S08-E/SO
包 SOIC-18
資料表 MCP23S08-E/SO DataSheet
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規格

Package	Tube
ProductStatus	Active
NumberofI/O	8
Interface	SPI
InterruptOutput	Yes
Features	POR
OutputType	Push-Pull
Current-OutputSource/Sink	25mA
ClockFrequency	10 MHz
Voltage-Supply	1.8V ~ 5.5V
OperatingTemperature	-40°C ~ 125°C
MountingType	Surface Mount
Package/Case	18-SOIC (0.295, 7.50mm Width)

概述

Description

The MCP23S08-E/SO is an 8-bit I/O expander from Microchip Technology, designed for easy interfacing with microcontrollers via a Serial Peripheral Interface (SPI). It expands the number of input/output pins available on a microcontroller, making it ideal for applications needing additional GPIO (General Purpose Input/Output) capabilities.
Key features include:
- Eight configurable I/O pins that can be set as inputs or outputs.
- SPI interface for fast communication, supporting clock speeds up to 10 MHz.
- Configurable pull-up resistors on input pins.
- Interrupt capability for monitoring pin changes.
- Low power consumption, making it suitable for battery-operated devices.
The MCP23S08-E/SO is packaged in a small SOIC-8 format, allowing for space-efficient designs. It is commonly used in various applications such as sensors, LED control, and other peripheral devices where additional I/O is needed.

Features

The MCP23S08-E/SO is a 8-bit I/O expander with the following key features:
1. Interface: Utilizes a Serial Peripheral Interface (SPI) for easy communication with microcontrollers.
2. I/O Ports: Provides 8 GPIO pins that can be configured individually as input or output.
3. Voltage Range: Operates from 1.8V to 5.5V, making it versatile for different applications.
4. Multiple Device Support: Up to 8 MCP23S08 devices can be connected on the same SPI bus using different Chip Select (CS) lines.
5. Interrupts: Supports interrupt-on-change functionality for efficient event handling.
6. Internal Pull-ups: Features internal pull-up resistors for input pins, simplifying circuit design.
7. Addressing: Each IC has a configurable address, allowing multiple devices on the same bus.
8. Low Power: Designed for low power consumption, suitable for battery-operated devices.
These features make the MCP23S08-E/SO ideal for expanding I/O capabilities in various embedded systems applications.

Package

The MCP23S08-E/SO is provided in a 28-lead SOIC (Small Outline Integrated Circuit) package. This package type features a thin profile and is suitable for surface mount applications.

Pinout

The MCP23S08-E/SO is a 16-pin I/O expander from Microchip Technology. It interfaces with microcontrollers via the Serial Peripheral Interface (SPI). The key features and pin functions are as follows:
1. Pins 1-8 (GPIOA): These pins function as general-purpose I/O ports (GPIO) that can be configured as input or output. They can be used for reading digital signals or driving outputs.

2. Pins 9-16 (GPIOB): Similar to GPIOA, these pins also serve as general-purpose I/O ports.
3. Pin 1 (SDA): Serial data input/output for SPI communication.
4. Pin 2 (SCL): Serial clock input for SPI communication.
5. Pin 3 (CS): Chip select, used to activate the device for communication.
6. Pin 4 (RESET): Active-low reset pin.
7. Pin 5 (VSS): Ground connection.
8. Pin 6 (VDD): Power supply.
9. Pin 7 (A0, A1, A2): Address selection pins to configure the device address.
10. Pin 8 (INT): Interrupt output pin, which signals when an input state changes.
In total, the MCP23S08-E/SO has 16 pins.

Manufacturer

The MCP23S08-E/SO is manufactured by Microchip Technology Inc., a leading provider of microcontroller and analog semiconductors. Founded in 1989, Microchip is known for its innovative solutions in embedded control, offering a wide range of devices including microcontrollers, digital signal controllers, and memory products. The company caters to various industries such as automotive, industrial, and consumer electronics, focusing on providing reliable and cost-effective solutions for embedded system design. Microchip is recognized for its commitment to quality and extensive support for developers, helping them streamline the design process and enhance product functionality.

Application

The MCP23S08-E/SO is an 8-bit I/O expander that interfaces with microcontrollers via SPI. Its application areas include controlling LEDs, reading switches, driving small motors, and expanding GPIO for various embedded systems. It is commonly used in consumer electronics, industrial automation, and robotics, where additional I/O capabilities are required without consuming many microcontroller pins.

Equivalent

Equivalent products to the MCP23S08-E/SO chip include the PCF8574 and PCF8575 from NXP, as well as the MCP23008 and MCP23017 from Microchip, which offer similar I/O functionality. Additionally, the MAX7301 and MAX7302 from Maxim Integrated can serve as alternatives. These devices provide I2C or SPI interfaces for GPIO expansion, with varying features and pin configurations. Always verify compatibility based on specific application needs.