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  1. Parts
  2. /Components
  3. /Integrated circuits

MCP23008 P DIP-18

OverviewAlternates
MCP23008 P DIP-18 - Microchip - ic-microchip-mcp23008-p-dip18

8-bit I2C I/O expander in DIP-18 package, operating from 1.8–5.5V. Up to eight devices on one bus via A0–A2 address pins; each GPIO configurable with optional pull-up. Interrupt output available.

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Offers

  • Adafruit$1.95
  • ?DigiKey$1.54
  • Kiwi Electronics€2.04
  • ?Microchip
  • ?Mouser Electronics
  • ?OpenCircuit€2.75

Pinout

Logical pinout · physical placement not verified
MCP23008 P DIP-18GP0A0GP1A1GP2A2GP3NCGP4SCLGP5SDAGP6INTGP7NCVSSVDD
  • GP01
    Type · GPIO
  • GP12
    Type · GPIO
  • GP23
    Type · GPIO
  • GP34
    Type · GPIO
  • GP45
    Type · GPIO
  • GP56
    Type · GPIO
  • GP67
    Type · GPIO
  • GP78
    Type · GPIO
  • VSS9
    Type · Ground
  • A010
    Type · Analog
  • A111
    Type · Analog
  • A212
    Type · Analog
  • NC13
    Type · Control
  • SCL14
    Type · I2C
  • SDA15
    Type · I2C
  • INT16
    Type · Signal
  • NC17
    Type · Control
  • VDD18
    Type · Power
PinPositionType
GP01GPIO
GP12GPIO
GP23GPIO
GP34GPIO
GP45GPIO
GP56GPIO
GP67GPIO
GP78GPIO
VSS9Ground
A010Analog
A111Analog
A212Analog
NC13Control
SCL14I2C
SDA15I2C
INT16Signal
NC17Control
VDD18Power
Logical pinout · physical placement not verified
MCP23008 P DIP-18GP0A0GP1A1GP2A2GP3NCGP4SCLGP5SDAGP6INTGP7NCVSSVDD

Pin details

18 connections
  1. GP0
    GPIO
    1
  2. GP1
    GPIO
    2
  3. GP2
    GPIO
    3
  4. GP3
    GPIO
    4
  5. GP4
    GPIO
    5
  6. GP5
    GPIO
    6
  7. GP6
    GPIO
    7
  8. GP7
    GPIO
    8
  9. VSS
    Ground
    9
  10. A0
    Analog
    10
  11. A1
    Analog
    11
  12. A2
    Analog
    12
  13. NC
    Control
    13
  14. SCL
    I2C
    14
  15. SDA
    I2C
    15
  16. INT
    Signal
    16
  17. NC
    Control
    17
  18. VDD
    Power
    18

Bare ICs

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