Microchip Technology Inc

MCP23017

In Production

The MCP23017/MCP23S17 (MCP23X17) device family provides 16-bit, general purpose parallel I/O expansion for I2C bus or SPI applications. The two devices differ only in the serial interface:
• MCP23017 – I2C interface
• MCP23S17 – SPI interface
The MCP23X17 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 MCP23X17 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. The interrupt output can be configured to activate under two conditions (mutually exclusive):
1. When any input state differs from its corresponding Input Port register state. This is used to indicate to the system master that an input state has changed.
2. When an input state differs from a preconfigured register value (DEFVAL register).

The Interrupt Capture register captures port values at the time of the interrupt, thereby saving the condition that caused the interrupt. The Power-on Reset (POR) sets the registers to their default values and initializes the device state machine. The hardware address pins are used to determine the device address.


 

    Features

         

      • 16-bit input/output port expander with interrupt output
      • Cascadable for up to 8 devices on one bus
      • 25mA sink/source capability per I/O
      • Supports 100kHz, 400kHz and 1.7MHz I2C™Compatible compatible modes
      •  

         

    Parameter Name
    Value
    Device Description
    16-bit I/O Port Expander
    Operating Voltage Range (V)
    1.8 to 5.5
    Operating Temp Range (°C)
    -40 to 125
    Interface
    I²C™
    Max. Bus Frequency (kBits/s)
    1700
    Documentation
    Data Sheets
    07/06/2016
    845KB
      Application Notes
     
     
     
    AppNote
    06/27/2006
    297KB
    AppNote
    04/12/2007
    478KB
      Brochures
     
     
     
    Brochures
    10/11/2005
    1067KB
    Brochures
    09/28/2017
    10743KB
      Product Document
     
     
     
     
    Product Document
    11/07/2005
    145KB
      Product Selection Tools
     
     
     
     
    Product Line Card
    10/16/2017
    4415KB
    Pricing & Samples
    All pricing shown in USD only.
    Part Number
    Leads
    Package Type
    Temp Range
    Packing
    1+
    26+
    100+
    1000+
    5000+
    Buy
    Sample
    MCP23017-E/ML
    28
    QFN
    -40C to +125C
    TUBE
    1.41
    1.18
    1.07
    1.03
    1.02
    MCP23017-E/SO
    28
    SOIC
    -40C to +125C
    TUBE
    1.20
    1.00
    0.91
    0.88
    0.87
    MCP23017-E/SP
    28
    SPDIP
    -40C to +125C
    TUBE
    1.20
    1.00
    0.91
    0.88
    0.87
    MCP23017-E/SS
    28
    SSOP
    -40C to +125C
    TUBE
    1.26
    1.05
    0.95
    0.92
    0.91
    MCP23017T-E/ML
    28
    QFN
    -40C to +125C
    T/R
    1.41
    1.18
    1.07
    1.03
    1.02
    MCP23017T-E/SO
    28
    SOIC
    -40C to +125C
    T/R
    1.20
    1.00
    0.91
    0.88
    0.87
    MCP23017T-E/SS
    28
    SSOP
    -40C to +125C
    T/R
    1.26
    1.05
    0.95
    0.92
    0.91

    ** Device not available to purchase online. Please contact a sales office for pricing information.
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    Development Tools
    • Demo & Eval Boards
    • MCP23X08/17 GPIO Exp Keypad/LCD Demo ( GPIODM-KPLCD )

      MCP23X08/17

      The GPIO Expander Keypad and LCD Demo Board is designed to demonstrate the use of the MCP23S08/17 (SPI interface) and the MCP23008/17 (I2C interface) devices in a keypad and LCD example. The MCP23X17 (16-bit) devices interface to a 2x16 LCD module and the MCP23X08 (8-bit) devices interface to a 4x4 keyed matrix.

    • MCP23X17 Evaluation Board ( MCP23X17EV )

      MCP23X17

      The MCP23X17 16-bit GPIO Expander Evaluation Board demonstrates simple input/output functionality of the MCP23017 (I2C interface) and the MCP23S17 (SPI interface). The system demonstrates the simplicity of monitoring four pins configured as inputs and applying a predetermined pattern on LEDs connected to the remaining 12 pins configured as outputs.

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    RoHS Information
    Part
    Number
    Device
    Weight
    Shipping
    Weight
    Lead
    Count
    Package
    Type
    Package
    Width
    Solder
    Composition
    JEDEC
    Indicator
    RoHS
     
    China
    EFUP
    MCP23017T-E/SO
    0.770400
    1.152500
    28
    SOIC
    .300in
    Matte Tin
    e3
    MCP23017-E/SO
    0.770400
    1.370370
    28
    SOIC
    .300in
    Matte Tin
    e3
    MCP23017-E/SP
    2.087500
    3.733333
    28
    SPDIP
    .300in
    Matte Tin
    e3
    MCP23017-E/ML
    0.101600
    0.163934
    28
    QFN
    6x6x0.9mm
    Matte Tin
    e3
    MCP23017T-E/ML
    0.101600
    0.332500
    28
    QFN
    6x6x0.9mm
    Matte Tin
    e3
    MCP23017T-E/SS
    0.229200
    0.333333
    28
    SSOP
    .209in
    Matte Tin
    e3
    MCP23017-E/SS
    0.229200
    0.489362
    28
    SSOP
    .209in
    Matte Tin
    e3
    MCP23017-E/SSVAO
    0.229200
    0.489362
    28
    SSOP
    .209in
    Matte Tin
    e3
    To see a complete listing of RoHS data for this device, please Click here
    Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.