Thông số kỹ thuật
| thuộc tính | Giá trị |
| 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-VFQFN Exposed Pad |
Tổng quan
Description
The TCA9555RGER is an I2C-based I/O expander from Texas Instruments. It provides additional GPIO (General Purpose Input/Output) pins for microcontrollers, making it ideal for applications where extra I/O capability is needed without increasing the microcontroller pin count. The device features 16-bit I/O expandability, divided into two 8-bit ports, which can be configured individually as inputs or outputs. Communication with the TCA9555RGER is facilitated via the I2C interface, supporting standard (100 kHz) and fast (400 kHz) modes.
Key features include interrupt capability, which alerts the microcontroller to a change on any input pin, reducing the need for constant polling. The device operates over a wide voltage range (1.65V to 5.5V) and is housed in a compact package, making it suitable for space-constrained designs. It is commonly used in consumer electronics, industrial automation, and other systems requiring flexible I/O expansion. The TCA9555RGER enhances the versatility of control systems by efficiently managing multiple I/O operations with minimal resource overhead.
Key features include interrupt capability, which alerts the microcontroller to a change on any input pin, reducing the need for constant polling. The device operates over a wide voltage range (1.65V to 5.5V) and is housed in a compact package, making it suitable for space-constrained designs. It is commonly used in consumer electronics, industrial automation, and other systems requiring flexible I/O expansion. The TCA9555RGER enhances the versatility of control systems by efficiently managing multiple I/O operations with minimal resource overhead.
Equivalent
The TCA9555RGER is a 16-bit I2C I/O expander. Equivalent products include the PCA9555 from NXP, the MCP23017 from Microchip, and the PCAL9554B from NXP, which offer similar functionality in terms of I2C interface and GPIO expansion. Ensure to check pin compatibility and electrical specifications for direct replacements.
Features
The TCA9555RGER is a 24-bit I/O expander from Texas Instruments, commonly used to increase the I/O capability of microcontrollers via an I2C interface. Key features include:
1. I2C Interface: It supports both standard (100 kHz) and fast (400 kHz) I2C interfaces.
2. 24 I/O Pins: Provides 24 general-purpose I/O pins, configurable as inputs or outputs.
3. Voltage Range: Operates with a supply voltage range between 1.65 V and 5.5 V, offering flexibility in different environments.
4. Interrupt Output: Features an interrupt output to signal a change in input port data, enhancing response capability.
5. Low Standby Current: Offers low power consumption, which is suitable for battery-operated devices.
6. SMBus Compatibility: Compatible with SMBus, making it versatile for interfacing with various devices.
7. High ESD Protection: Provides robust ESD protection on all pins, improving device reliability.
8. Package Options: Comes in different package options, including the VQFN package for space-constrained designs.
These features make the TCA9555RGER suitable for applications requiring expanded I/O capabilities in compact and power-efficient designs.
1. I2C Interface: It supports both standard (100 kHz) and fast (400 kHz) I2C interfaces.
2. 24 I/O Pins: Provides 24 general-purpose I/O pins, configurable as inputs or outputs.
3. Voltage Range: Operates with a supply voltage range between 1.65 V and 5.5 V, offering flexibility in different environments.
4. Interrupt Output: Features an interrupt output to signal a change in input port data, enhancing response capability.
5. Low Standby Current: Offers low power consumption, which is suitable for battery-operated devices.
6. SMBus Compatibility: Compatible with SMBus, making it versatile for interfacing with various devices.
7. High ESD Protection: Provides robust ESD protection on all pins, improving device reliability.
8. Package Options: Comes in different package options, including the VQFN package for space-constrained designs.
These features make the TCA9555RGER suitable for applications requiring expanded I/O capabilities in compact and power-efficient designs.
Pinout
The TCA9555RGER is a 24-pin IC, specifically a GPIO (General Purpose Input/Output) expander by Texas Instruments. It operates over the I²C interface and is designed to provide additional input/output ports for microcontrollers.
Its main functions include:
1. I²C Interface: It supports standard (100 kHz) and fast (400 kHz) I²C bus frequencies.
2. 16-bit I/O Expander: Provides 16 additional I/O ports, organized in two 8-bit ports (P0 and P1).
3. Programmable I/O: Each pin can be configured as an input or output.
4. Interrupt Output: It features an interrupt output that alerts the connected microcontroller when there is a change on any input port.
5. Voltage Range and Compatibility: Operates from 1.65 V to 5.5 V, suitable for interfacing with a variety of logic levels.
6. Low Standby Current: Efficient in power-sensitive applications.
The TCA9555RGER is useful for applications needing more I/O ports than what is natively available on a microcontroller, such as in embedded systems, industrial control, and sensor networks.
Its main functions include:
1. I²C Interface: It supports standard (100 kHz) and fast (400 kHz) I²C bus frequencies.
2. 16-bit I/O Expander: Provides 16 additional I/O ports, organized in two 8-bit ports (P0 and P1).
3. Programmable I/O: Each pin can be configured as an input or output.
4. Interrupt Output: It features an interrupt output that alerts the connected microcontroller when there is a change on any input port.
5. Voltage Range and Compatibility: Operates from 1.65 V to 5.5 V, suitable for interfacing with a variety of logic levels.
6. Low Standby Current: Efficient in power-sensitive applications.
The TCA9555RGER is useful for applications needing more I/O ports than what is natively available on a microcontroller, such as in embedded systems, industrial control, and sensor networks.
Manufacturer
The TCA9555RGER is manufactured by Texas Instruments (TI), a global semiconductor company. Texas Instruments is known for designing and manufacturing a wide range of semiconductor products, including analog chips, digital signal processors, microcontrollers, and integrated circuits, among others. The company serves various industries, including automotive, industrial, personal electronics, communications, and enterprise systems. Texas Instruments is recognized for its innovation in electronic design and its contributions to the development of technologies that drive advancements in these sectors.
Application
The TCA9555RGER is a 16-bit I/O expander that uses the I2C bus for communication. It is commonly used in applications requiring additional I/O ports beyond what microcontrollers can provide. Key application areas include industrial automation, where it helps manage multiple sensors or actuators, consumer electronics for controlling LEDs, keyboards, and switches, and embedded systems to extend microcontroller capabilities. It is also used in data acquisition systems to handle multiple inputs and outputs efficiently and can be employed in networking equipment for managing control signals. Its flexibility and wide voltage range make it suitable for various applications needing digital interface expansion.
Package
The TCA9555RGER is a 24-pin package, specifically a VQFN (Very Thin Quad Flat No-Lead) type with a 4.00 mm x 4.00 mm size. It's used for I2C bus input/output expansion and is manufactured by Texas Instruments.
