사양
| 속성 | 가치 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Translator Type | Voltage Level |
| Channel Type | Bidirectional |
| Number of Circuits | 1 |
| Channelsper Circuit | 2 |
| Voltage - VCCA | 0.8 V ~ 3.6 V |
| Voltage - VCCB | 1.65 V ~ 3.6 V |
| Output Type | Non-Inverted |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount |
개요
Description
The TCA9803DGKR is a bidirectional I2C bus buffer designed by Texas Instruments. It serves to enhance I2C communication by isolating capacitance and providing signal integrity, particularly in systems with high capacitance or long trace lengths. The device supports voltage translation, allowing different voltage levels between I2C buses, making it suitable for applications involving mixed-voltage systems.
Key features include support for clock stretching and arbitration, ensuring proper communication in complex I2C systems. It operates over a wide voltage range, typically from 1.65 V to 5.5 V, and supports standard-mode, fast-mode, and fast-mode plus I2C speeds, up to 1 MHz. The TCA9803DGKR also includes an active pull-up circuit, improving rise time for high-speed signals.
Packaged in a small, space-efficient form factor, the TCA9803DGKR is ideal for use in portable electronics, industrial, and automotive applications where reliable I2C communication is critical. Its low power consumption and robust performance make it a versatile choice for engineers dealing with complex I2C configurations.
Key features include support for clock stretching and arbitration, ensuring proper communication in complex I2C systems. It operates over a wide voltage range, typically from 1.65 V to 5.5 V, and supports standard-mode, fast-mode, and fast-mode plus I2C speeds, up to 1 MHz. The TCA9803DGKR also includes an active pull-up circuit, improving rise time for high-speed signals.
Packaged in a small, space-efficient form factor, the TCA9803DGKR is ideal for use in portable electronics, industrial, and automotive applications where reliable I2C communication is critical. Its low power consumption and robust performance make it a versatile choice for engineers dealing with complex I2C configurations.
Equivalent
The TCA9803DGKR is a dual bidirectional I2C bus buffer. Equivalent products include:
1. PCA9306 from NXP Semiconductors
2. P82B96 from NXP Semiconductors
3. LTC4311 from Analog Devices
4. TCA9517 from Texas Instruments
These alternatives offer similar functionalities, such as voltage level translation and improved I2C signal integrity, but it's important to verify specific electrical characteristics and pin configurations to ensure compatibility.
1. PCA9306 from NXP Semiconductors
2. P82B96 from NXP Semiconductors
3. LTC4311 from Analog Devices
4. TCA9517 from Texas Instruments
These alternatives offer similar functionalities, such as voltage level translation and improved I2C signal integrity, but it's important to verify specific electrical characteristics and pin configurations to ensure compatibility.
Features
The TCA9803DGKR is a dual bidirectional buffer designed for I²C and SMBus applications, offering several key features:
1. Voltage Level Translation: It supports voltage level translation between 0.8V to 3.6V on the A-side and 1.65V to 5.5V on the B-side, facilitating communication between devices with different voltage levels.
2. Bidirectional Buffering: The device allows for bidirectional data flow, making it suitable for systems where both directions of communication are needed.
3. High-Speed Operation: It supports data rates up to 2 Mbps, making it ideal for fast I²C communications.
4. Low Offset Voltage: The device features low offset voltage, which ensures minimal signal distortion and reliable performance.
5. Supply Voltage Range: It operates over a wide supply voltage range, enhancing flexibility in various applications.
6. Package: Available in a small, space-saving VSSOP package, which is suitable for compact designs.
7. Latch-Up Performance: The device is designed to withstand high latch-up currents, improving reliability.
8. Temperature Range: It operates effectively over a wide temperature range, suitable for various environments.
These features make the TCA9803DGKR suitable for integrating multiple I²C and SMBus devices in complex systems.
1. Voltage Level Translation: It supports voltage level translation between 0.8V to 3.6V on the A-side and 1.65V to 5.5V on the B-side, facilitating communication between devices with different voltage levels.
2. Bidirectional Buffering: The device allows for bidirectional data flow, making it suitable for systems where both directions of communication are needed.
3. High-Speed Operation: It supports data rates up to 2 Mbps, making it ideal for fast I²C communications.
4. Low Offset Voltage: The device features low offset voltage, which ensures minimal signal distortion and reliable performance.
5. Supply Voltage Range: It operates over a wide supply voltage range, enhancing flexibility in various applications.
6. Package: Available in a small, space-saving VSSOP package, which is suitable for compact designs.
7. Latch-Up Performance: The device is designed to withstand high latch-up currents, improving reliability.
8. Temperature Range: It operates effectively over a wide temperature range, suitable for various environments.
These features make the TCA9803DGKR suitable for integrating multiple I²C and SMBus devices in complex systems.
Pinout
The TCA9803DGKR is an I2C bus repeater device from Texas Instruments designed to improve the performance of I2C communication by buffering the bus and isolating segments. It is housed in an 8-pin VSSOP (DGK) package. The pin functions are as follows:
1. VCC1: Supply voltage for the A-side I2C bus.
2. SCLA: Serial clock line for the A-side I2C bus.
3. SDAA: Serial data line for the A-side I2C bus.
4. GND: Ground reference for the device.
5. SDAB: Serial data line for the B-side I2C bus.
6. SCLB: Serial clock line for the B-side I2C bus.
7. EN: Enable pin to activate or deactivate the repeater function.
8. VCC2: Supply voltage for the B-side I2C bus.
The TCA9803 allows for level shifting between different voltage domains on the I2C bus, making it useful for mixed-voltage systems. It provides bidirectional buffering, ensuring signal integrity and improving capacitance drive capability.
1. VCC1: Supply voltage for the A-side I2C bus.
2. SCLA: Serial clock line for the A-side I2C bus.
3. SDAA: Serial data line for the A-side I2C bus.
4. GND: Ground reference for the device.
5. SDAB: Serial data line for the B-side I2C bus.
6. SCLB: Serial clock line for the B-side I2C bus.
7. EN: Enable pin to activate or deactivate the repeater function.
8. VCC2: Supply voltage for the B-side I2C bus.
The TCA9803 allows for level shifting between different voltage domains on the I2C bus, making it useful for mixed-voltage systems. It provides bidirectional buffering, ensuring signal integrity and improving capacitance drive capability.
Manufacturer
The TCA9803DGKR is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and produces a wide range of electronic components and integrated circuits. The company is known for its extensive portfolio of products, which serve various markets including industrial, automotive, personal electronics, communications equipment, and enterprise systems. TI focuses on innovation and development in analog and embedded processing technologies, making it a key player in the electronics and semiconductor industries.
Application
The TCA9803DGKR is a low-voltage bidirectional I2C buffer, primarily used in applications requiring I2C signal isolation, level shifting, and buffering. Key application areas include consumer electronics, where it enhances communication between microcontrollers and peripheral devices. It is also used in computing systems for reliable data transfer across different voltage domains. Its robust performance makes it suitable for industrial automation systems, ensuring stable communication in noisy environments. Additionally, the TCA9803DGKR is valuable in automotive electronics for controlling and monitoring various subsystems. Overall, it is ideal for any application requiring efficient and seamless I2C communication in multi-voltage environments.
Package
The TCA9803DGKR is a buffer/driver IC from Texas Instruments, and it comes in a VSSOP (Very Thin Shrink Small Outline Package) with 8 pins, specifically designated as "DGK" for this package. This type of packaging is compact and suitable for surface-mount technology (SMT) applications.
