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Microchip 16-Channel I/O Expander QFN 28, Surface Mount, 10MHz, 1.8 - 5.5V MCP23017T-E/ML
Specifications
| Country of Origin | United States |
|---|---|
| Brand | Microchip |
| Height | 1mm |
| Length | 6mm |
| Model | MCP23017T-E/ML |
| Mount Type | Surface |
| Series | MCP23017 |
| Maximum Operating Temperature | 125°C |
| Package Type | QFN |
| Minimum Operating Temperature | -40°C |
| Pin Count | 28 |
| Maximum Supply Voltage | 5.5V |
| Minimum Supply Voltage | 1.8V |
| Clock frequency | 10MHz |
| Number of I/O Channels | 16 |
Key Features
- Supports 16 individual I/O channels for flexible input and output configurations.
- Compact QFN 28 package suitable for space-restricted PCB layouts.
- Operates with a wide supply voltage range from 1.8V to 5.5V.
- Clock frequency up to 10MHz for fast signal processing.
- Surface mount design enables automated assembly and secure placement.
- Includes multiple 8-bit configuration registers for input, output, and polarity selection.
- Interrupt output and cascadable for up to 8 devices on one bus.
- Sink/source capacity of 25mA per I/O channel for robust operation.
Product Description
The Microchip MCP23017T-E/ML is a high-performance 16-channel I/O expander in a compact QFN 28 package, designed to enhance digital input and output capacity in embedded systems, automation, and industrial devices.
With its versatile configuration, the MCP23017T-E/ML offers users the ability to set all 16 channels as either inputs or outputs by manipulating dedicated configuration registers. The device features multiple 8-bit registers for both input/output and polarity selection, providing extensive control and flexibility for signal management. The polarity inversion register ensures seamless adaptability for various logic requirements.
Operating at supply voltages from 1.8V to 5.5V, and supporting clock frequencies up to 10MHz, the MCP23017T-E/ML delivers reliable and responsive digital expansion across a wide voltage range. Its QFN 28 footprint makes it ideal for densely populated PCBs and space-critical applications. Surface mount compatibility allows for streamlined automated manufacturing and robust PCB attachment.
The MCP23017T-E/ML is designed with cascadability in mind, enabling up to eight devices to be connected in a single system for greatly expanded I/O capabilities. It provides interrupt output and supports sink/source currents up to 25mA per channel, ensuring stable operation with various sensor, actuator, and logic loads. The IC accommodates I2C communication at speeds up to 1.7MHz, and is compatible with standard 100kHz and 400kHz modes, simplifying system integration.
Engineers and designers benefit from this expander's ability to streamline digital control in microcontroller and FPGA-based environments, enabling rapid prototyping, field deployment, and scalable system design. Its wide operating temperature range ensures suitability in harsh industrial conditions, with pin count optimized for maximum flexibility.
Common applications include industrial automation, process control, instrumentation, building management systems, and commercial embedded platforms. Whether expanding digital interfacing for PLCs or boosting board-level capacity in medical devices and instrumentation, the MCP23017T-E/ML delivers reliable performance and configurability.
Explore more semiconductor and component solutions from Microchip under the EnvMart electronics category for industrial and embedded system innovation.
Explore more products in our I/O Expander IC category.
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Frequently Asked Questions
This model operates with a supply voltage range from 1.8V to 5.5V.
It supports 16 individual I/O channels for flexible input and output configurations.
The maximum clock frequency for this model is 10MHz, allowing for fast signal processing.
This unit comes in a compact QFN 28 package, suitable for space-restricted PCB layouts.
The dimensions are 6mm in length and 1mm in height, with a pin count of 28.
It operates within a temperature range of -40°C to 125°C, making it suitable for harsh industrial conditions.
This model features a surface mount design, enabling automated assembly and secure placement on PCBs.
Yes, it supports cascadability for up to eight devices on one bus, enhancing I/O capabilities.
Each I/O channel can sink or source up to 25mA, ensuring robust operation with various loads.
It accommodates I2C communication at speeds up to 1.7MHz and is compatible with standard 100kHz and 400kHz modes.
Common applications include industrial automation, process control, instrumentation, and building management systems.
The country of origin for this model is the United States.
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