--- product_id: 652551822 title: "MCP23017-E/SP - I/O Expander, 16bit, 1.7 MHz, I2C, Serial, 4.5 V, 5.5 V, DIP (1 Piece)" brand: "juried engineering" price: "£55.53" currency: GBP in_stock: true category: "Juried Engineering" url: https://www.desertcart.co.uk/products/652551822-mcp23017-e-sp-i-o-expander-16bit-1-7-mhz store_origin: GB region: United Kingdom --- # 1.7 MHz high-speed I2C Configurable interrupt pins 16-bit I/O expansion MCP23017-E/SP - I/O Expander, 16bit, 1.7 MHz, I2C, Serial, 4.5 V, 5.5 V, DIP (1 Piece) **Brand:** juried engineering **Price:** £55.53 **Availability:** ✅ In Stock ## Summary > ⚙️ Unlock 16-bit I/O power with lightning-fast I2C — don’t get left behind! ## Quick Answers - **What is this?** MCP23017-E/SP - I/O Expander, 16bit, 1.7 MHz, I2C, Serial, 4.5 V, 5.5 V, DIP (1 Piece) by juried engineering - **How much does it cost?** £55.53 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/652551822-mcp23017-e-sp-i-o-expander-16bit-1-7-mhz) ## Best For - juried engineering enthusiasts ## Why This Product - Trusted juried engineering brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Expand Your Control:** Seamlessly add 16 bidirectional I/O ports to your projects for ultimate flexibility. - • **Interrupts Your Way:** Customize INTA and INTB pins independently or combined for precise event handling. - • **Energy Efficient Design:** Keep your system lean with a low standby current maxing at just 1µA. - • **Plug & Play Scalability:** Use up to 8 devices on the same bus with three hardware address pins—future-proof your design. - • **Blazing Fast Communication:** Experience ultra-responsive performance with a high-speed 1.7 MHz I2C interface. ## Overview The MCP23017-E/SP is a versatile 16-bit I/O expander designed for I2C bus applications, offering configurable input/output ports, dual interrupt pins with flexible operation modes, and a high-speed 1.7 MHz interface. It supports up to eight devices on a single bus via hardware addressing and features ultra-low standby current, making it ideal for scalable, energy-efficient embedded systems. ## Description The MCP23017 device family provides 16-bit, general purpose parallel I/O expansion for I2C bus applications. The MCP23017-E/SP consists of multiple 8 bit configuration registers for input, output and polarity selection. The system master can enable the I/Os as either inputs or outputs by writing the I/O configuration bits (IODIRA/B). The data for each input or output is kept in the corresponding input or output register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master. The 16-bit I/O port functionally consists of two 8-bit ports (PORTA and PORTB). The MCP23017 can be configured to operate in the 8-bit or 16-bit modes via IOCON.BANK. There are two interrupt pins, INTA and INTB, that can be associated with their respective ports, or can be logically OR’ed together so that both pins will activate if either port causes an interrupt. ## Features - 16 bit remote bidirectional I/O port, Configurable interrupt output pins, INTA and INTB can be configured to operate independently or together - High speed I2C interface: 100 kHz, 400 kHz, 1.7 MHz, Configurable interrupt source, Polarity Inversion register to configure the polarity of the input port data - Three hardware address pins to allow up to eight devices on the bus - External Reset input, Low standby current: 1A max. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00Q2NXQQE | | Item model number | MCP23017-E/SP | | Manufacturer | MICROCHIP | ## Images ![MCP23017-E/SP - I/O Expander, 16bit, 1.7 MHz, I2C, Serial, 4.5 V, 5.5 V, DIP (1 Piece) - Image 1](https://m.media-amazon.com/images/I/71XZZse4sCL.jpg) ![MCP23017-E/SP - I/O Expander, 16bit, 1.7 MHz, I2C, Serial, 4.5 V, 5.5 V, DIP (1 Piece) - Image 2](https://m.media-amazon.com/images/I/81UoRm9vw0L.jpg) ![MCP23017-E/SP - I/O Expander, 16bit, 1.7 MHz, I2C, Serial, 4.5 V, 5.5 V, DIP (1 Piece) - Image 3](https://m.media-amazon.com/images/I/71QKRtLiscL.jpg) ![MCP23017-E/SP - I/O Expander, 16bit, 1.7 MHz, I2C, Serial, 4.5 V, 5.5 V, DIP (1 Piece) - Image 4](https://m.media-amazon.com/images/I/81YRijVHeVL.jpg) ![MCP23017-E/SP - I/O Expander, 16bit, 1.7 MHz, I2C, Serial, 4.5 V, 5.5 V, DIP (1 Piece) - Image 5](https://m.media-amazon.com/images/I/81iTiClhNqL.jpg) ## Frequently Bought Together - Juried Engineering MCP23017-E/SP MCP23017 16-Bit I/O Expander with Serial Interface 1.7 MHz I2C Breadboard-Friendly IC DIP-28 (1 Piece) - KOOBOOK 5Pcs DRV8833 Motor Drive Module 1.5A Dual H Bridge DC Gear Motor Driver Controller Board - 20PCS 2.54mm Breakaway PCB Board 40Pin Male and Female Header Connector for Arduino Shield --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/652551822-mcp23017-e-sp-i-o-expander-16bit-1-7-mhz](https://www.desertcart.co.uk/products/652551822-mcp23017-e-sp-i-o-expander-16bit-1-7-mhz) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-26*