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Item #:
206879477
PCF8574 IO Expansion Board 8Bit Parallel Expander I2C-Bus Evaluation Development Module
Item #:
206879477
KWD 4
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Imported from UK store
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Order now and get it around Monday, August 24
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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
Have any Query? Chat with us
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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“Fast delivery, great experience overall.”
03-Jul-26 · via Trustpilot
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“Excellent item received as expected and before the estimated time. Thanks for the great service.”
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11 February 2026 · via Trustpilot
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“Very good the same exact product that i wanted good shipping and delivery”
10 June 2026 · via Trustpilot
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“Package delivered on time”
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KWD 4
Order now and get it around Monday, August 24
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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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