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    MCP23S17 16-Bit I/O Expander SPI Robotics Bangladesh
    • MCP23S17 16-Bit I/O Expander SPI Robotics Bangladesh

    MCP23S17 16-Bit I/O Expander SPI

    RBD-3380

    • MCP23S17 16-Bit I/O Expander SPI for expanding microcontroller GPIO pins
    • Adds 16 programmable digital I/O via high-speed SPI (up to 10 MHz)
    • Wide operating voltage range: 1.8V – 5.5V
    • Per-pin interrupt support with interrupt-on-change detection
    • Configurable internal pull-up resistors for input stability
    • Ideal for Arduino, ESP32, STM32, Raspberry Pi, and embedded systems
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    Description

    The MCP23S17 16-Bit I/O Expander SPI is a powerful digital port expander that allows microcontrollers to add 16 additional programmable GPIO pins using the SPI communication interface. Supporting SPI speeds up to 10 MHz, it ensures fast and responsive control for real-time applications. This makes it an excellent solution when working with Arduino, ESP32, STM32, or Raspberry Pi projects where native GPIO pins are limited.

    Because it supports a wide operating voltage range from 1.8V to 5.5V, the MCP23S17 integrates easily into both 3.3V and 5V systems. Moreover, it provides configurable pin direction, interrupt-on-change detection, and internal pull-up resistors, which simplify input handling for switches, sensors, and keypads. With hardware address pins (A0, A1, A2), multiple devices can share the same SPI bus, allowing scalable system expansion. Featured By RoboticsBD.

    Product Images are shown for illustrative purposes only and may differ from the actual product.

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    Features:

    1. 16 Additional GPIO Pins – Instantly expands digital inputs and outputs.

    2. High-Speed SPI Interface – Up to 10 MHz for responsive and efficient communication.

    3. Configurable Pin Direction – Each pin can be independently set as input or output.

    4. Interrupt-on-Change Support – Detects state changes without continuous polling.

    5. Internal Pull-Up Resistors – Simplifies switch and button interfacing.

    6. Multiple Device Addressing – Connect several expanders on one SPI bus for large systems.

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    Applications:

    1. Robotics control panels and sensor expansion.

    2. Industrial automation input/output interfaces.

    3. LED arrays, keypad matrices, and switch panels.

    4. IoT gateways and distributed embedded systems.

    5. Display control and peripheral management.

    6. GPIO expansion for microcontroller development boards.

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    General Specifications
    Product NameMCP23S17 16-Bit I/O Expander SPI
    InterfaceSPI (Up to ~10 MHz)
    Total GPIO Pins16 (Port A + Port B)
    Operating Voltage1.8V – 5.5V
    Interrupt SupportYes (Per Pin)
    Internal Pull-upsConfigurable (~100kΩ Typical)
    Package OptionsDIP-28 / SOIC-28 / SSOP-28
    AddressingA0, A1, A2 Hardware Address Pins
    Operating Temperature−40°C to +125°C (Typical Industrial Range)
    Shipment Weight0.005 kg
    Shipment Dimensions3 × 3 × 3 cm

    Please allow 5% measuring deviation due to manual measurement.

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    Package Includes:

    1 x MCP23S17 16-Bit I/O Expander SPI

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    Product Details
    RBD-3380
    49 Items

    Specific References

    EAN13
    3380
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    BDT 1,190 tax excl.
    BDT 1,190 tax excl.
    BDT 0 Tax
    BDT 1,190 tax incl.
    More MCP23017 I2C GPIO Expander Breakout Board – 16 Digital I/O STEMMA QT / Qwiic Compatible
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