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TCA6408ARSVR
+BOMIC I/O EXPANDER I2C 8B 16QFN
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ManufacturerTexas Instruments
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Mfr. Part #TCA6408ARSVR
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Package UQFN (RSV)-16
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In Stock6765
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Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| NumberofI/O | 8 |
| 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 | 16-UFQFN |
Overview
Description
Key features include:
1. I²C Interface: It allows communication with multiple devices through a two-wire bus, supporting fast-mode transfer rates up to 400 kHz.
2. Configurable I/O: Each of the 8 pins can be configured individually as either input or output.
3. Low Voltage Operation: Operates from 1.65V to 3.6V, making it suitable for low-power applications.
4. Interrupt Output: Provides an interrupt signal for detecting input changes, useful for efficient polling.
5. Small Package: Available in a compact VQFN package, ideal for space-constrained designs.
The TCA6408ARSVR is commonly used in consumer electronics, industrial control, and other applications requiring extended I/O capabilities.
Equivalent
1. PCA6408A by NXP
2. PCF8574 by NXP
3. MCP23008 by Microchip Technology
4. SX1508 by Semtech
These alternatives vary in features and specifications, so review datasheets to ensure compatibility with your specific application needs.
Features
1. I²C Interface: Supports standard (100 kHz), fast (400 kHz), and fast-plus (1 MHz) I²C bus frequencies, providing flexibility for various applications.
2. Voltage Range: Operates with a supply voltage ranging from 1.65 V to 5.5 V, accommodating a wide range of power supply systems.
3. 8-bit I/O Port: Offers eight configurable input/output pins, which can be used to monitor and control devices.
4. Interrupt Output: Includes an interrupt output pin that informs the microcontroller about input changes, optimizing response time.
5. Low Standby Current: Features extremely low standby current consumption, making it suitable for battery-operated devices.
6. SMBus Alert Pin: Supports a dedicated SMBus alert pin for enhanced communication efficiency in system management applications.
7. Package Options: Available in various compact packages, supporting space-constrained designs.
These features make the TCA6408ARSVR ideal for expanding the GPIO capabilities in embedded systems, consumer electronics, and industrial applications.
Pinout
Key functions and features include:
- GPIO Expansion: Provides 8 additional GPIO pins.
- I2C Interface: Compatible with I2C bus for control and configuration.
- Interrupt Output: Includes an interrupt output to signal changes on the input pins.
- Configurable I/O: Each GPIO pin can be configured as input or output.
- Voltage Levels: Supports multiple voltage levels to interface with different systems.
- Low Standby Current: Offers low power consumption in standby mode.
This device optimizes I2C-based systems by extending the number of I/O ports without significant increases in complexity or cost, making it suitable for various applications in consumer electronics, industrial controls, and more.
Manufacturer
Application
1. Industrial Automation: For controlling additional sensors and actuators.
2. Consumer Electronics: Extending GPIO for user interfaces and control panels.
3. Embedded Systems: Expanding I/O capabilities in IoT devices.
4. Automotive: Used in infotainment systems and vehicle body electronics.
5. Home Automation: Integrating various input/output devices for smart home systems.
6. Communication Equipment: Managing additional inputs/outputs in network devices.
Its ability to interface via the I2C bus makes it versatile for various compact and low-power applications.