MCP23S08T-E/SO

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MCP23S08T-E/SO

IC I/O EXPANDER SPI 8B 18SOIC

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Spezifikationen

Package Tape & Reel (TR),Cut Tape (CT)
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)

Übersicht

Description

The MCP23S08T-E/SO is a 16-bit I/O expander with SPI (Serial Peripheral Interface) communication, designed by Microchip Technology. It expands the number of input/output (I/O) pins available on microcontrollers by providing 8 additional GPIO (General Purpose Input/Output) pins. The device operates with a supply voltage range of 1.8V to 5.5V, making it suitable for various applications, including battery-powered devices.
Key features include configurable input/output directions, interrupt-on-change capabilities, and a simple SPI interface that allows for fast data transfer. It also supports multiple device connections on the same SPI bus, with hardware address pins allowing up to 8 devices to be connected simultaneously. The MCP23S08T-E/SO is packaged in a small SOIC (Small Outline Integrated Circuit) format, ideal for space-constrained designs.
This expander is widely used in applications such as sensor interfacing, LED control, and other digital I/O tasks, enhancing the versatility of microcontroller-based systems.

Features

The MCP23S08T-E/SO is an 8-bit I/O port expander that communicates via SPI (Serial Peripheral Interface). Key features include:
1. I/O Expansion: Provides 8 additional GPIO pins for microcontrollers.
2. SPI Interface: Supports serial communication with speeds up to 10 MHz.
3. Configurable Direction: Each pin can be set as input or output individually.
4. Interrupt Capability: Supports interrupt on change for efficient event handling.
5. Pull-up Resistors: Integrated pull-up resistors for input pins can be enabled.
6. Multiple Devices: Up to 8 devices can be connected on the same SPI bus using different chip select lines.
7. Low Power Consumption: Designed for low power operation, suitable for battery-powered applications.
8. Operating Voltage: Compatible with a wide voltage range from 1.8V to 5.5V.
9. Temperature Range: Operates reliably within -40°C to +125°C.
These features make the MCP23S08T-E/SO suitable for various applications requiring additional I/O without consuming extra GPIOs on the host microcontroller.

Package

The MCP23S08T-E/SO is packaged in a 28-pin SOIC (Small Outline Integrated Circuit) form factor. This package type is designed for surface mounting and has a narrow body that facilitates compact PCB layouts.

Pinout

The MCP23S08T-E/SO is an 8-bit I/O expander with a total of 16 pins. Its pin configuration includes:
1. VDD (Power Supply): Pin 1
2. VSS (Ground): Pin 8
3. SCK (Serial Clock): Pin 2
4. SI (Serial Input): Pin 3
5. SO (Serial Output): Pin 4
6. CS (Chip Select): Pin 5
7. GPIO (General Purpose I/O): Pins 6, 7, 9, 10, 11, 12, 13, 14
8. RESET: Pin 15 (active low)
The MCP23S08T-E/SO communicates via a Serial Peripheral Interface (SPI) and allows for the control of eight GPIO pins. It is useful for expanding the number of I/O pins available in microcontroller applications, providing additional digital inputs or outputs. The device supports read and write operations, making it versatile for various applications.

Manufacturer

The MCP23S08T-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 applications, offering a wide range of products including microcontrollers, digital signal controllers, and memory products. The company primarily serves industries such as automotive, industrial, consumer, and communications. Microchip is recognized for its commitment to quality, reliability, and customer service, providing comprehensive development tools and support for engineers and developers.

Application

The MCP23S08T-E/SO is an 8-bit I/O expander with SPI interface, commonly used in embedded systems for applications such as expanding GPIO for microcontrollers, interfacing with sensors and peripherals, driving LEDs, and managing buttons or switches. Its ability to control multiple I/O lines via a single SPI bus makes it ideal for resource-constrained environments in industrial automation, consumer electronics, and robotics.

Equivalent

The MCP23S08T-E/SO is a 8-bit I/O expander with SPI interface. Equivalent products include the MCP23S17 (16-bit version), PCF8574 (I2C interface), and the TCA9555 (16-bit I2C interface). Additionally, the MCP23008 (I2C version) and MCP23017 (16-bit I2C) are also alternatives, although they use I2C instead of SPI. Ensure compatibility with your specific application requirements, including interface type and pin configuration.

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