MCP23018-E/MJ
Manufacturer: Microchip Technology
Part Number: MCP23018-E/MJ
Attribute | Value |
cate_name | I/O Port Expanders |
Datasheet | MCP23018-E/MJ Microchip Technology |
rohs | Compliance |
reference_package | QFN |
mounting | SMD mount |
application_level | Industrial |
lifecycle | On sale |
spm | Tube |
operating_temperature | -40℃~125℃ |
length_width_height | |
interrupt_output | yes |
max_clock_frequency | 3.4MHz |
max_operating_supply_voltage | 5.5V |
min_operating_supply_voltage | 1.8V |
number_of_ios | 16 |
protocols_supported | I2C |
sink_current | 25mA |
source_current | 25mA |
typical_supply_current | - |
The Microchip Technology MCP23018-E/MJ is a highly integrated, 16-bit I/O expansion chip designed to interface with microcontroller units (MCUs) via the I2C bus. This device is equipped with 16 GPIO (General Purpose Input/Output) pins that can be individually configured as inputs or outputs, offering a versatile solution for expanding the I/O capabilities of an MCU.
Features of MCP23018-E/MJ
1. 16-bit I/O Expansion: Offers 16 GPIO pins that can be independently configured as inputs or outputs.
2. I2C Interface: Communicates with the host MCU via the I2C bus, simplifying the connection and reducing the number of required pins.
3. Programmable Pull-Ups: Each GPIO pin can have an internal pull-up resistor enabled or disabled.
4. Interrupt Capabilities: Supports INTA and INTB pins for signaling interrupt conditions to the host MCU.
5. Power-Saving Modes: Features power-saving sleep mode to reduce power consumption.
6. Wide Voltage Range: Operates on a supply voltage range of 2.0V to 5.5V, making it compatible with various power sources.
Development Support
Microchip provides comprehensive development support for the MCP23018-E/MJ, including:
- Datasheets: Detailed documentation on the device's specifications and operation.
- Sample Code: Example code snippets to help developers get started with integrating the chip into their projects.
- Technical Support: Access to Microchip's technical support team for assistance with development issues.
Application Fields
The MCP23018-E/MJ is suitable for a wide range of applications, including but not limited to:
- Home automation systems
- Industrial control systems
- Robotics
- IoT devices
- Any application requiring I/O expansion for a microcontroller
Parameter Introduction
- Operating Voltage: 2.0V to 5.5V
- I/O Pins: 16 (8 on port A, 8 on port B)
- I2C Address Range: 4 unique addresses (depending on the A0, A1, A2 pins)
- Package Type: E/MJ (SOIC-28)
- Operating Temperature Range: -40°C to +85°C
Frequently Asked Questions (FAQs)
1. Q: Can the MCP23018-E/MJ be used with any microcontroller?
A: Yes, it can be used with any microcontroller that supports I2C communication.
2. Q: How do I configure the GPIO pins as inputs or outputs?
A: The GPIO pins can be configured through the I2C interface by writing to the appropriate registers.
3. Q: What is the maximum data transfer rate of the I2C interface?
A: The maximum data transfer rate depends on the I2C bus speed, which can be up to 400 kbps.
4. Q: Does the MCP23018-E/MJ support any form of electrical isolation?
A: No, the MCP23018-E/MJ does not support electrical isolation. It is a direct I/O expansion chip.
5. Q: How can I reduce power consumption when using the MCP23018-E/MJ?
A: Power consumption can be reduced by enabling the sleep mode or by disabling unused GPIO pins' internal pull-up resistors.
The MCP23018-E/MJ is a robust and flexible I/O expansion solution that simplifies the design of systems requiring additional input and output capabilities, making it an excellent choice for a variety of applications in the embedded systems domain.
Please refer to the product rule book for details.
Microchip Technology's product line is vast and diverse, designed to serve a multitude of industries ranging from automotive to consumer electronics . The company is renowned for its range of microcontrollers, including the popular PIC microcontrollers, which are widely used in a variety of applications for their ease of programming and cost-effectiveness. Microchip's microcontrollers are complemented by a robust suite of software tools, providing developers with comprehensive solutions to create innovative and efficient products.
In addition to microcontrollers, Microchip Technology offers a broad spectrum of analog devices, including amplifiers, linear and interface products, power management devices, and data converters. These components are crucial for building complex electronic systems that require precise signal management and conversion.
Microchip also excels in providing a variety of memory products, including EEPROM, SRAM, and Flash memory chips, which are essential for data storage in electronic devices. The company's expertise in Flash-IP integration allows them to offer unique solutions that integrate flexible memory technologies with microcontrollers to streamline product design and reduce costs.
The company's commitment to innovation is further exemplified by its foray into the Internet of Things (IoT) and connectivity solutions. Microchip provides a range of wireless products, including Wi-Fi, Bluetooth, and LoRa technologies, enabling devices to connect and communicate seamlessly in an increasingly interconnected world.
Microchip Technology places a strong emphasis on quality and reliability, which is critical for applications where failure is not an option, such as in automotive and medical devices. The company operates state-of-the-art manufacturing facilities that adhere to rigorous standards for quality control and assurance.
Education and support are also key aspects of Microchip's strategy. The company offers extensive training, webinars, and technical support resources to help designers and engineers utilize their products effectively. This educational support, combined with user-friendly development tools, helps to lower the barrier to entry for using advanced microelectronics in new applications.
Furthermore, Microchip Technology is dedicated to sustainability and responsible business practices. The company actively works to minimize its environmental impact through waste reduction, energy management, and sustainable innovation.
In conclusion, Microchip Technology stands out as a robust and innovative company that not only provides a wide range of electronic components but also supports its offerings with strong customer support, comprehensive development tools, and a commitment to quality and sustainability. Whether for automotive safety systems, consumer electronics, industrial applications, or emerging IoT devices, Microchip Technology continues to be at the forefront of microelectronic solutions, driving technology forward in a multitude of sectors.
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