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MCP23S08T-E/ML

Name: MCP23S08T-E/ML
Rating: 4.7 (12 reviews)

IC XPNDR 10MHZ SPI 20QFN

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資料表 MCP23S08T-E/ML DataSheet
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規格

Part Status	Active
DigiKey Programmable	Not Verified
Number of I/O	8
Interface	SPI
Interrupt Output	Yes
Features	POR
Output Type	Push-Pull
Current - Output Source/Sink	25mA
Clock Frequency	10 MHz
Voltage - Supply	1.8V ~ 5.5V
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	20-VFQFN Exposed Pad
Supplier Device Package	20-QFN (4x4)
Base Product Number	MCP23S08

概述

Description

The MCP23S08T-E/ML is an 8-bit I/O expander from Microchip Technology that communicates via the Serial Peripheral Interface (SPI). It allows microcontrollers to increase the number of I/O pins, making it ideal for applications where GPIO expansion is necessary. The device features 8 configurable GPIO pins that can be set as input or output, with additional options for pull-up resistors and interrupt generation on pin changes.
Key features include a 2.0V to 5.5V operating voltage range, a maximum clock speed of 10 MHz for SPI communication, and the ability to daisy-chain multiple MCP23S08 devices for even more I/O. The MCP23S08T-E/ML is available in a compact 28-QFN package, making it suitable for space-constrained designs. Its applications range from consumer electronics to industrial automation, providing flexibility and scalability in digital circuit designs.

Features

The MCP23S08T-E/ML is an 8-bit I/O expander that communicates via the SPI protocol. Key features include:
1. I/O Ports: 8 GPIO pins that can be configured as inputs or outputs.
2. SPI Interface: 3-wire SPI interface for easy integration with microcontrollers.
3. Interrupt Capability: Supports interrupt-on-change functionality for inputs, allowing efficient event-driven processing.
4. Configurable Pull-up Resistors: Integrated pull-up resistors for input pins, simplifying circuit design.
5. Multiple Device Support: Up to 8 devices can be connected on the same SPI bus with unique chip select lines.
6. Operating Voltage: Supports a wide operating voltage range from 1.8V to 5.5V.
7. Low Power Consumption: Designed for low power operation, making it suitable for battery-powered applications.
8. Package Options: Available in various package types, including 8-pin PDIP and 8-pin SOIC, for versatile PCB designs.
This expander enhances GPIO capabilities, making it ideal for applications in embedded systems and automation.

Package

The MCP23S08T-E/ML is packaged in a 28-lead TSSOP (Thin Shrink Small Outline Package). This surface-mount package is designed for space-saving and efficient board design in various electronic applications.

Pinout

The MCP23S08T-E/ML is a 16-pin GPIO expander from Microchip Technology. It features 8 GPIO pins that can be configured as inputs or outputs. The pinout includes:
- 1 (SCK): Serial Clock input
- 2 (SI): Serial Input (Data In)
- 3 (SO): Serial Output (Data Out)
- 4 (CS): Chip Select
- 5-12 (GPIO0 to GPIO7): General Purpose I/O pins
- 13 (VSS): Ground
- 14 (VDD): Supply Voltage
- 15 (RESET): Reset pin
- 16 (A0): Address selection pin for I2C address configuration
The MCP23S08T-E/ML operates via SPI communication, allowing for easy integration with microcontrollers for additional GPIO capabilities. The device can be powered with a supply voltage ranging from 1.8V to 5.5V, making it suitable for various applications.

Manufacturer

The MCP23S08T-E/ML is manufactured by Microchip Technology Inc. Microchip is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions. The company specializes in embedded control applications and offers a wide range of products, including microcontrollers, memory devices, and connectivity solutions. Founded in 1989, Microchip serves various industries such as automotive, industrial, consumer electronics, and communication. Their focus is on providing innovative and cost-effective solutions for designers and engineers in the electronic industry.

Application

The MCP23S08T-E/ML is an 8-bit I/O expander for microcontrollers, commonly used in applications like LED control, switch inputs, and general-purpose I/O expansion in embedded systems. It interfaces via SPI, making it suitable for projects requiring additional GPIOs in compact areas, such as consumer electronics, automotive systems, industrial automation, and robotics. Its versatility allows integration in various electronic projects where enhanced input/output capabilities are needed.

Equivalent

The MCP23S08T-E/ML is a 8-bit I/O expander with SPI interface. Equivalent products include the MCP23S17 (16-bit version), PCA9555 (I2C interface), and the TCA9555 (I2C interface). For similar functionality, look into the NXP PCF8574 (I2C) or the TI TPS65217 (although primarily a power management IC, it has GPIO capabilities). Ensure to check voltage levels and communication protocols when selecting alternatives.