Microchip Technology Inc

MCP23008

In Production

The MCP23X08 device provides 8-bit, general purpose, parallel I/O expansion for I2C bus or SPI applications. The two devices differ in the number of hardware address pins and the serial interface:
• MCP23008 – I2C interface; three address pins
• MCP23S08 – SPI interface; two address pins
The MCP23X08 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. 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.

 

    Features

         

        • 8-bit port expander with interrupt output
        • 3 address inputs for up to 8 devices on one bus
        • 25mA sink/source capability per I/O
        • Supports 100kHz, 400kHz and 1.7MHz I2C™Compatible modes
        • Internal power-on-reset (POR)
    Parameter Name
    Value
    Device Description
    8-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
    08/24/2007
    649KB
      Errata
     
     
     
     
    Errata
    11/07/2005
    146KB
      Application Notes
     
     
     
    AppNote
    06/27/2006
    297KB
    AppNote
    04/12/2007
    478KB
    AppNote
    01/31/2005
    278KB
      Brochures
     
     
     
    Brochures
    10/11/2005
    1067KB
    Brochures
    10/15/2014
    11223KB
      Product Selection Tools
     
     
     
     
    Product Line Card
    06/08/2017
    4167KB
      User Guides
     
     
     
     
    User Guides
    06/29/2006
    548KB
    Pricing & Samples
    All pricing shown in USD only.
    Part Number
    Leads
    Package Type
    Temp Range
    Packing
    1+
    26+
    100+
    1000+
    5000+
    Buy
    Sample
    MCP23008-E/ML
    20
    QFN
    -40C to +125C
    TUBE
    1.10
    0.92
    0.84
    0.81
    0.80
    MCP23008-E/P
    18
    PDIP
    -40C to +125C
    TUBE
    1.02
    0.85
    0.78
    0.75
    0.74
    MCP23008-E/SO
    18
    SOIC
    -40C to +125C
    TUBE
    1.02
    0.85
    0.78
    0.75
    0.74
    MCP23008-E/SS
    20
    SSOP
    -40C to +125C
    TUBE
    1.10
    0.92
    0.84
    0.81
    0.80
    MCP23008T-E/ML
    20
    QFN
    -40C to +125C
    T/R
    1.10
    0.92
    0.84
    0.81
    0.80
     
    MCP23008T-E/SO
    18
    SOIC
    -40C to +125C
    T/R
    1.02
    0.85
    0.78
    0.75
    0.74
     
    MCP23008T-E/SS
    20
    SSOP
    -40C to +125C
    T/R
    1.10
    0.92
    0.84
    0.81
    0.80

    ** 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.

    • MCP23008/MCP23S08 Evaluation Board ( MCP23X08EV )

      MCP23008/MCP23S08

      The MCP23X08 8-bit GPIO Expander Evaluation Board demonstrates simple input/output functionality of the MCP23008 (I2C interface) and the MCP23S08 (SPI interface). The system demonstrates the simplicity of monitoring four inputs and applying the level to associated outputs.

    • PICkit Serial I2C demo board ( PKSERIAL-I2C1 )

      PICkit

      The PICkit™ Serial I2C Demo Board was designed to easily connect to the PICkit Serial Analyzer (DV164122). The PICkit Serial Analyzer provides the I2C master mode serial communications and power for the PICkit™ Serial I2C Demo Board. The devices on the demo board operate in the I2C slave mode and can easily be connected to virtually any demo or development board by connecting the...

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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
    MCP23008-E/P
    1.248000
    2.200000
    18
    PDIP
    .300in
    Matte Tin
    e3
    MCP23008-E/SO
    0.481000
    0.857143
    18
    SOIC
    .300in
    Matte Tin
    e3
    MCP23008T-E/SO
    0.481000
    1.000909
    18
    SOIC
    .300in
    Matte Tin
    e3
    MCP23008-E/ML
    0.043100
    0.076923
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP23008T-E/ML
    0.043100
    0.212121
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP23008T-E/SS
    0.164200
    0.416250
    20
    SSOP
    .209in
    Matte Tin
    e3
    MCP23008-E/SS
    0.164200
    0.343284
    20
    SSOP
    .209in
    Matte Tin
    e3
    MCP23008-E/SSVAO
    0.164200
    0.343284
    20
    SSOP
    .209in
    Matte Tin
    e3
    MCP23008T-E/SSVAO
    0.164200
    0.416250
    20
    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.