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Item #:
206879477
PCF8574 IO Expansion Board 8Bit Parallel Expander I2C-Bus Evaluation Development Module
Item #:
206879477
BHD 5
Price Details
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*All items will import from UK
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Imported from UK store
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Order now and get it around Monday, August 17
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Up to 8 PCF8574 IO expansion boards can be connected to the I2C-bus, providing up to 64 I/O ports.
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What Stands Out
I2C Compatibility
Utilizes I2C communication for easy interfacing with microcontrollers, reducing pin usage and simplifying wiring for various projects, making it ideal for hobbyists and developers alike.
8-Bit Expansion
Provides eight additional I/O pins to enhance microcontroller capabilities, perfect for expanding device connectivity in compact designs and enabling the development of more complex electronic applications.
Versatile Applications
Suitable for a wide range of projects, from robotics to home automation, offering flexibility for various development needs while ensuring efficient use of space and resources.
Product Details
| Brand Name | Wdfnexalai |
| Unit Count | 1.0 count |
| Item Weight | 0.1 lbs (50 grams) |
Who Should Buy?
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Hobbyist Developers
Ideal for hobbyists experimenting with I2C devices and needing additional GPIO for projects and prototypes.
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Embedded Systems
Beneficial for embedded system designers who require simple interfacing with multiple peripherals via I2C.
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Student Learning
Great for students learning about electronics and I2C communication, allowing hands-on experience with interface expansion.
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High Frequency Tasks
Not suitable for applications requiring high-speed GPIO as I2C communication limits response time.
Product Description
PCF8574 IO Expansion Board 8Bit Parallel Expander I2C-Bus Evaluation Development Module
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Customer Questions & Answers
-
Question:
How many expansion boards can I connect at once?
Answer: You can connect up to 8 PCF8574 IO expansion boards to the I2C-bus. -
Question:
What is the maximum number of I/O ports provided?
Answer: By connecting 8 boards, you can achieve a total of 64 I/O ports. -
Question:
Is it easy to connect to existing systems?
Answer: Yes, the board features a flexible design with convenient pinheader and connector options.
Wdfnexalai IO Modules Editorial Review
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“Excellent quality and very fast delivery, I really appreciate your service, when you work good I will appreciate that, I am very satisfied, thank you”
13 June 2026 · via Trustpilot
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2 June 2026 · via Trustpilot
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“Firstly the team who are very positive in response to any correction if something wrong. Secondly the quality and selection is exactly on what I ordered and which is perfect. Finally the time of delivery is very sufficient which made me comfortable. Overall is excellent.”
26 Feb 2026 · via Trustpilot
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“Good quality of product, delivered in 2 weeks. I thought it would take more time.”
21 Feb 2026 · via Trustpilot
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20 Feb 2026 · via Trustpilot
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BHD 5
Order now and get it around Monday, August 17
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Supports I2C cascading for enhanced connectivity.
- Use multiple modules on one I2C bus effortlessly.
- Acts as a remote 8-bit I/O expander.
- Connect up to 8 boards for a total of 64 I/O ports.
- Flexible design with pinheader on one side and connector on the other.
- Perfect for expanding your development system capabilities.
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