TCA9538DBR Integrated Circuits (ICs) |
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Allicdata Part #: | 296-43160-2-ND |
Manufacturer Part#: |
TCA9538DBR |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC I/O EXPANDER I2C 8B 16TSSOP |
More Detail: | I/O Expander 8 I²C 400kHz 16-SSOP |
DataSheet: | TCA9538DBR Datasheet/PDF |
Quantity: | 1000 |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
Series: | -- |
Packaging: | Tape & Reel (TR) |
Lead Free Status / RoHS Status: | -- |
Part Status: | Active |
Moisture Sensitivity Level (MSL): | -- |
Number of I/O: | 8 |
Interface: | I²C |
Interrupt Output: | Yes |
Features: | -- |
Output Type: | Push-Pull |
Current - Output Source/Sink: | -- |
Clock Frequency: | 400kHz |
Voltage - Supply: | 1.65 V ~ 5.5 V |
Operating Temperature: | -40°C ~ 85°C |
Mounting Type: | Surface Mount |
Package / Case: | 16-SSOP (0.209", 5.30mm Width) |
Supplier Device Package: | 16-SSOP |
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The TCA9538DBR by Texas Instruments is an I/O expander device that integrates two bidirectional level translators and two I2C multiplexers onto a single chip. It has sixteen general-purpose I/O pins that can be used to either input received data or transmit data. The TCA9538DBR is designed to allow expansion of the I/O ports of a microcontroller system and can be used in various digital and analog applications including Industrial Control, Mobility, Sensor, and Automotive. The device supports high-speed data transfer along with filters and level shifters for addressing various applications.
Application Field
The TCA9538DBR is designed for use in industrial control, mobility, sensor and automotive applications. The device has sixteen general-purpose I/O pins that allow for digital and analog signaling. It also features input/output filters and level translators that help to address a variety of applications. In industrial control, the device can be used in applications such as motor controllers, robotic systems, and PLCs. In mobile applications, the device is used to provide input/output ports for mobile computers, PDAs, and other mobile devices. In sensor applications, the I/O expander can be used to provide additional I/O ports for various temperature, pressure, and other sensors. Finally, in automotive applications, the device can be used to provide additional I/O ports for automotive systems like headlights, brakes, and engine control.
Working Principle
The TCA9538DBR performs various functions like I/O expansion, level shifting and bus reversing. The device integrates an I2C multiplexer and a bidirectional level converter on the same chip. The I2C multiplexer is used to multiplex and switch between the two I2C buses (Bus A and Bus B), allowing communication between the two buses. The bidirectional level converter supports 3.3V I/O operations and allows for data to be transferred between the different I/O voltage levels (1.8V, 2.5V, 3.3V) of the system. The TCA9538DBR also includes a bus-reversing circuit, which reverses the direction of data transfer between the two buses. One of the most important features of the device is its low power consumption. The device operates from a single supply voltage of either 1.8V, 2.5V or 3.3V, and typically consumes 1μA when idle.
Conclusion
The TCA9538DBR is a 16-bit I/O expander device that integrates two bidirectional level translators and two I2C multiplexers on a single chip. It is designed for use in industrial control, mobility, sensor, and automotive applications. The device also features input/output filters and level shifters to help address various applications. Moreover, the device consumes low power, supports high-speed data transfer, and is capable of data bus reversing.
The specific data is subject to PDF, and the above content is for reference
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