Reference: RBD-2213
Banner

The MCP23008 I/O Expander is a versatile chip that adds eight general-purpose I/O pins to your microcontroller via an I²C interface. Each pin can be configured as an input, output, or input with pull-up, offering flexibility for a wide range of applications. It includes an interrupt output for event-driven designs, removing the need for constant polling. With support for up to eight MCP23008 devices on the same bus, you can expand your system to 64 additional GPIO pins using only two microcontroller pins. Compact, reliable, and easy to use, this expander is perfect for projects needing extra digital I/O. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
Adds 8 extra GPIO pins to any microcontroller.
I²C interface – only requires two pins.
Configurable I/O: input, output, or input with pull-up.
Interrupt output for monitoring pin changes.
Up to 8 devices can share a single I²C bus (64 pins total).
Operates from 2.7V to 5.5V – works with 3.3V and 5V systems.
Low standby current: max. 1 µA.
DIP package – easy to use with breadboards or PCBs.
Can sink/source up to 20mA per pin (ideal for LEDs, etc.).
Address pins allow unique device configurations.
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
GPIO expansion for Arduino, ESP32, Raspberry Pi, and STM32.
Robotics projects needing multiple input/output signals.
LED matrix or display control.
Keypad and button matrix scanning.
Sensor hub expansion.
Home automation and IoT devices.
Industrial control and monitoring systems.
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
| General Specifications | |
| Model | MCP23008 I/O Expander |
| I/O Pins | 8 (individually configurable) |
| Interface | I²C (100kHz – 1.7kHz depending on Vcc) |
| Voltage Range | 2.7V – 5.5V |
| Current Drive | Up to 20mA per pin |
| Package | DIP (breadboard/PCB compatible) |
| Interrupt Support | Yes |
| Operating Temperature | -40°C to +85°C |
| Expansion Support | Up to 8 devices (64 I/O) |
| Shipment Weight | 0.0010 kg |
| Shipment Dimensions | 4× 3× 2cm |
Please allow 5% measuring deviation due to manual measurement.
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
1 x I/O Expander - MCP23008
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
Specific References
Your review appreciation cannot be sent
Report comment
Report sent
Your report cannot be sent
Write your review
Review sent
Your review cannot be sent
Reference: RBD-2213
Reference: RBD-3048
Reference: RBD-3120
Reference: RBD-1582
Reference: RBD-3279
Reference: RBD-2928
Reference: RBD-0345
Reference: RBD-0387
We'll slide into your inbox when the product is back in stock.
Reference: RBD-2671
Reference: RBD-1400
Reference: RBD-1722
Reference: RBD-1770
Reference: RBD-1750
Reference: RBD-1834
Reference: RBD-2554
Reference: RBD-0944
Reference: RBD-0307
Reference: RBD-0400
Reference: RBD-0949
Reference: RBD-1010
Reference: RBD-1188
Reference: RBD-1189
Reference: RBD-1356
Reference: RBD-2219
Reference: RBD-3603
Reference: RBD-0385
check_circle
check_circle