仕様
| 属性 | 値 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| NumberofI/O | 16 |
| Interface | I²C, SMBus |
| InterruptOutput | Yes |
| Features | POR |
| OutputType | Push-Pull |
| Current-OutputSource/Sink | 10mA, 25mA |
| ClockFrequency | 400 kHz |
| Voltage-Supply | 1.65V ~ 5.5V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 24-TSSOP (0.173, 4.40mm Width) |
概要
Description
The TCA9555PWR is a 24-pin integrated circuit from Texas Instruments that functions as a 16-bit I2C bus I/O expander. This device allows for the expansion of GPIO (General Purpose Input/Output) capabilities via the I2C interface, making it ideal for applications requiring more input/output pins such as microcontroller projects. The TCA9555PWR supports I2C bus speeds up to 400 kHz and features two 8-bit input/output ports, configurable as either inputs or outputs.
Key features include interrupt outputs for change detection, polarity inversion, and programmable pull-up resistors. It operates over a voltage range of 1.65 V to 5.5 V, making it suitable for a variety of voltage levels. The device also offers low power consumption and is available in a TSSOP package, which is compact and easy to integrate into different designs. Overall, the TCA9555PWR is used in a wide range of applications, including industrial controls, instrumentation, and home automation, where additional GPIO options are needed.
Key features include interrupt outputs for change detection, polarity inversion, and programmable pull-up resistors. It operates over a voltage range of 1.65 V to 5.5 V, making it suitable for a variety of voltage levels. The device also offers low power consumption and is available in a TSSOP package, which is compact and easy to integrate into different designs. Overall, the TCA9555PWR is used in a wide range of applications, including industrial controls, instrumentation, and home automation, where additional GPIO options are needed.
Equivalent
The TCA9555PWR is a 16-bit I/O expander with an I2C interface. Equivalent products include:
1. PCA9555 by NXP Semiconductors
2. MCP23017 by Microchip Technology
3. PCA9535 by NXP Semiconductors
4. MAX7313 by Maxim Integrated
These alternatives offer similar functionality and might vary in terms of additional features, pin configurations, voltage levels, or package types. Always check the datasheets for compatibility with your specific requirements.
1. PCA9555 by NXP Semiconductors
2. MCP23017 by Microchip Technology
3. PCA9535 by NXP Semiconductors
4. MAX7313 by Maxim Integrated
These alternatives offer similar functionality and might vary in terms of additional features, pin configurations, voltage levels, or package types. Always check the datasheets for compatibility with your specific requirements.
Features
The TCA9555PWR is a 16-bit I2C I/O expander with interrupt output and hardware reset, designed to enhance the I/O capabilities of microcontrollers. Its key features include:
1. I2C Interface: It supports a standard I2C bus with a 400 kHz data rate, allowing easy integration with various microcontrollers.
2. 16-bit GPIO: Provides 16 general-purpose input/output pins to expand I/O capacity.
3. Programmable Polarity: Each input can be configured for polarity inversion.
4. Interrupt Output: Features an interrupt output pin to signal the microcontroller of state changes.
5. Hardware Reset: Includes a hardware reset pin for easy reset functionality.
6. Low Standby Current: Features low power consumption, beneficial for battery-powered applications.
7. Wide Voltage Range: Operates over a supply voltage range of 1.65V to 5.5V, making it suitable for various systems.
8. Small Package: Available in a TSSOP package, offering a compact solution for space-constrained applications.
These features make the TCA9555PWR ideal for expanding the I/O of systems in industrial, automotive, and consumer electronics applications.
1. I2C Interface: It supports a standard I2C bus with a 400 kHz data rate, allowing easy integration with various microcontrollers.
2. 16-bit GPIO: Provides 16 general-purpose input/output pins to expand I/O capacity.
3. Programmable Polarity: Each input can be configured for polarity inversion.
4. Interrupt Output: Features an interrupt output pin to signal the microcontroller of state changes.
5. Hardware Reset: Includes a hardware reset pin for easy reset functionality.
6. Low Standby Current: Features low power consumption, beneficial for battery-powered applications.
7. Wide Voltage Range: Operates over a supply voltage range of 1.65V to 5.5V, making it suitable for various systems.
8. Small Package: Available in a TSSOP package, offering a compact solution for space-constrained applications.
These features make the TCA9555PWR ideal for expanding the I/O of systems in industrial, automotive, and consumer electronics applications.
Pinout
The TCA9555PWR is an I²C bus I/O expander from Texas Instruments. It has a 24-pin configuration and functions as a 16-bit I/O expander for the I²C bus. The pins are organized as follows:
- Power Pins: VCC (power supply) and GND (ground).
- I²C Interface Pins: SDA (data line), SCL (clock line).
- Address Pins: A0, A1, A2 for setting the I²C address, allowing multiple devices on the same bus.
- Reset Pin: RESET for resetting the device.
- Interrupt Pin: INT for interrupt output that indicates a change in the input state.
- I/O Pins: P00–P07 and P10–P17, providing a total of 16 general-purpose I/O pins divided into two 8-bit ports (P0 and P1).
The TCA9555PWR allows for additional GPIO capability in a system through the I²C interface, making it suitable for applications requiring a large number of I/Os.
- Power Pins: VCC (power supply) and GND (ground).
- I²C Interface Pins: SDA (data line), SCL (clock line).
- Address Pins: A0, A1, A2 for setting the I²C address, allowing multiple devices on the same bus.
- Reset Pin: RESET for resetting the device.
- Interrupt Pin: INT for interrupt output that indicates a change in the input state.
- I/O Pins: P00–P07 and P10–P17, providing a total of 16 general-purpose I/O pins divided into two 8-bit ports (P0 and P1).
The TCA9555PWR allows for additional GPIO capability in a system through the I²C interface, making it suitable for applications requiring a large number of I/Os.
Manufacturer
The TCA9555PWR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components and integrated circuits. Founded in 1930 and headquartered in Dallas, Texas, TI is one of the largest and most established companies in the semiconductor industry. Their products are used in various applications, including industrial, automotive, personal electronics, and communications equipment. TI is well-known for its innovation in analog and embedded processing, among other areas, and serves diverse markets worldwide.
Application
The TCA9555PWR is an I2C bus-controlled I/O expander, commonly used in applications requiring additional input/output ports. Key application areas include:
1. Consumer Electronics: Enhancing input/output port availability for devices like TVs and home audio systems.
2. Industrial Automation: Enabling sensor and actuator interfacing with microcontrollers.
3. Embedded Systems: Expanding GPIO capabilities in microcontroller and FPGA-based designs.
4. Home Automation: Adding control options for smart home devices.
5. Instrumentation: Managing multiple sensor inputs and control outputs.
6. Networking Equipment: Providing expanded I/O for routers and switches.
These applications benefit from the TCA9555PWR's ability to manage multiple peripherals with minimal wiring.
1. Consumer Electronics: Enhancing input/output port availability for devices like TVs and home audio systems.
2. Industrial Automation: Enabling sensor and actuator interfacing with microcontrollers.
3. Embedded Systems: Expanding GPIO capabilities in microcontroller and FPGA-based designs.
4. Home Automation: Adding control options for smart home devices.
5. Instrumentation: Managing multiple sensor inputs and control outputs.
6. Networking Equipment: Providing expanded I/O for routers and switches.
These applications benefit from the TCA9555PWR's ability to manage multiple peripherals with minimal wiring.
Package
The TCA9555PWR is a remote 16-bit I2C and SMBus low-power I/O expander with interrupt output and reset for communication between microcontrollers and peripherals. It is available in a TSSOP (Thin Shrink Small Outline Package) with 24 pins.
