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MCP23008T-E/SS
+BOMIC I/O EXPANDER 8BIT I2C 20-SSOP
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メーカーマイクロチップ・テクノロジー
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メーカー品番 #MCP23008T-E/SS
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データシート MCP23008T-E/SS DataSheet
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パッケージ SSOP-20
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在庫状況3237
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| 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-SSOP (0.209, 5.30mm Width) |
概要
Description
The MCP23008T-E/SS offers individual control over each pin's direction, input polarity, and output state, making it suitable for applications like keypad interfacing, LED control, and sensor monitoring. The SOIC-18 package ensures a compact design, easy integration, and reliable performance in a range of electronic systems. Its low power consumption and robust design make it ideal for battery-operated devices and space-constrained applications.
Overall, the MCP23008T-E/SS extends the capabilities of microcontrollers, enhancing flexibility and functionality in embedded systems.
Equivalent
Features
1. I2C Interface: Operates at standard (100 kHz), fast (400 kHz), and high-speed (1.7 MHz) I2C bus frequencies, making it compatible with a wide range of systems.
2. 8-Bit I/O Port: Provides 8 general-purpose input/output pins, which can be configured individually as input or output.
3. Interrupt Output: Includes interrupt-on-change feature for detecting input changes and generating an interrupt signal to a connected microcontroller.
4. 3.3V or 5V Operation: Supports a wide operating voltage range from 1.8V to 5.5V, offering flexibility for different power environments.
5. Low Standby Current: Features low power consumption, making it suitable for battery-operated applications.
6. Configurable Pull-Up Resistors: Internal pull-up resistors can be enabled on each pin to simplify circuit design.
7. Simple Addressing: Up to 8 devices can be connected on the same bus with unique addresses.
These features make the MCP23008T-E/SS ideal for expanding I/O capabilities in microcontroller-based systems.
Pinout
1. Pins: The device has 20 pins.
2. Functionality:
- VDD (Pin 9): Power supply input.
- VSS (Pin 10): Ground reference.
- SCL (Pin 12): Serial Clock Line – used to synchronize data transfer over the I2C bus.
- SDA (Pin 13): Serial Data Line – used for data transfer on the I2C bus.
- INT (Pin 18): Interrupt output – active low, used to alert the microcontroller of a change on the monitored GPIO pins.
- Reset (Pin 14): Resets the device when pulled low.
- A0, A1, A2 (Pins 15-17): Address pins – used to configure the I2C address of the device.
- GP0-GP7 (Pins 1-8): General Purpose I/O pins – used to interface with the external world, configurable as inputs or outputs.
This device is used to expand the I/O capabilities of microcontrollers, allowing increased circuit interfacing within an I2C framework.
Manufacturer
Application
1. Embedded Systems: Enhancing microcontrollers with limited I/O by providing extra pins.
2. Consumer Electronics: Used in devices needing multiple peripherals, such as keypads or LEDs.
3. Industrial Automation: Facilitates control and monitoring of various devices like sensors and actuators.
4. Home Automation: Supports smart home devices by expanding I/O capabilities for control systems.
5. Prototyping and Development: Useful in development boards requiring flexible I/O configurations.
6. Communications Equipment: Assists in managing multiple signal lines efficiently.