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MCP23008T-E/ML
+BOMIC I/O EXPANDER I2C 8B 20QFN
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ManufacturerMicrochip Technology
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Mfr. Part #MCP23008T-E/ML
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Datasheet MCP23008T-E/ML DataSheet
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Package QFN-20
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In Stock3896
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Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| NumberofI/O | 8 |
| Interface | I²C |
| InterruptOutput | Yes |
| Features | POR |
| OutputType | Push-Pull |
| Current-OutputSource/Sink | 25mA |
| ClockFrequency | 1.7 MHz |
| Voltage-Supply | 1.8V ~ 5.5V |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | 20-VFQFN Exposed Pad |
Overview
Description
Key features include:
- I2C Interface: Compatible with standard (100 kHz), fast (400 kHz), and high-speed (1.7 MHz) modes, enabling versatile connectivity.
- 8-Bit Port: Offers 8 individually configurable input/output pins, enhancing flexibility in design applications.
- Interrupt Output: Provides interrupt pin options for alerting the microcontroller about input changes.
- Low Power Consumption: Suitable for battery-operated devices, optimizing power efficiency.
- Address Pins: Three hardware address pins allow up to eight devices on the same bus.
- Varied Voltage Range: Operates between 1.8V to 5.5V, catering to diverse power requirements.
The MCP23008T-E/ML is commonly used in applications like consumer electronics, industrial automation, and any system requiring additional I/O functionality. Its compact design and robust performance make it a popular choice for expanding digital control capabilities.
Equivalent
1. PCF8574 by NXP: Similar I2C 8-bit I/O expander.
2. PCA9554 by NXP: Offers I2C 8-bit I/O expander features.
3. TCA9534 by Texas Instruments: 8-bit I2C I/O expander.
4. SX1508 by Semtech: Provides more features, like keypad scanning.
Ensure to verify electrical specifications and package compatibility for your application.
Features
1. I/O Ports: Provides 8-bit parallel I/O ports, which can be configured individually as inputs or outputs.
2. I2C Interface: Supports standard (100 kHz) and fast (400 kHz) I2C communication, allowing easy integration with microcontrollers.
3. Interrupt Output: Includes an open-drain interrupt output for notifying the microcontroller of input state changes.
4. Addressable: Features 3 address pins, enabling up to 8 devices on a single I2C bus, expanding the total number of I/O ports.
5. Operating Voltage: Functions within a voltage range of 1.8V to 5.5V, making it suitable for various power supply needs.
6. Package Type: Comes in a 2x3 DFN package, offering a compact solution for space-constrained applications.
7. Low Standby Current: Ensures minimal power consumption when not actively driving outputs.
These features make the MCP23008T-E/ML ideal for applications requiring additional I/O capacity, such as home automation, industrial control, and embedded systems.
Pinout
Key features include:
- 8-bit general purpose input/output expander
- I2C interface for communication with a host microcontroller
- Each of the 8 pins can be configured as either an input or an output
- Internal pull-up resistors can be enabled
- Interrupt output for inputs
- Lower power consumption with operating voltage ranging from 1.8V to 5.5V
This device is commonly used in applications where there is a need for additional I/O resources without increasing the microcontroller's pin count.
Manufacturer
Application
1. Embedded Systems: Extending I/O for microcontrollers in embedded systems.
2. Home Automation: Controlling multiple devices and sensors.
3. Industrial Control: Managing I/O in industrial automation systems.
4. Consumer Electronics: Expanding control interfaces in gadgets.
5. Robotics: Handling multiple sensors and actuators.
6. Instrumentation: Interfacing with multiple peripheral devices.
7. Automotive: Extending I/O capabilities in automotive electronics.
Its compatibility with I2C and low power consumption make it suitable for a wide range of applications requiring additional I/O connectivity.