規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Not For New Designs |
| Type | Buffer, ReDriver |
| Applications | I²C |
| Input | 2-Wire Bus |
| Output | 2-Wire Bus |
| DataRate(Max) | 400kHz |
| NumberofChannels | 2 |
| Capacitance-Input | 6 pF |
| Voltage-Supply | 0.9V ~ 5.5V, 2.7V ~ 5.5V |
| Current-Supply | 1.5mA |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) |
概述
Description
The PCA9517DGKR is a bus repeater from NXP Semiconductors designed to enable I²C and SMBus systems to extend their communication range. It supports bidirectional data transfer and operates at speeds up to 1 MHz, making it suitable for various high-speed applications. The device features two I²C bus ports, allowing for signal buffering and level translation between different voltage levels, typically ranging from 0.9V to 5.5V. This makes it particularly useful for interfacing components with differing logic levels. The PCA9517DGKR is equipped with hot-swappable inputs, ensuring smooth operation when devices are added or removed from the bus without disrupting the system.
Its open-drain architecture allows for multiple devices to communicate on the same bus line. Additionally, the device contributes to signal integrity by minimizing capacitance load and ensuring robust communication over extended distances. Packaged in a small TSSOP, the PCA9517DGKR is ideal for space-constrained applications such as consumer electronics, industrial controls, and networking equipment. Overall, it provides flexibility, compatibility, and reliability for complex digital communication systems.
Its open-drain architecture allows for multiple devices to communicate on the same bus line. Additionally, the device contributes to signal integrity by minimizing capacitance load and ensuring robust communication over extended distances. Packaged in a small TSSOP, the PCA9517DGKR is ideal for space-constrained applications such as consumer electronics, industrial controls, and networking equipment. Overall, it provides flexibility, compatibility, and reliability for complex digital communication systems.
Equivalent
The PCA9517DGKR is a level-translating I2C bus repeater. Equivalent products include:
1. TCA9517 from Texas Instruments – A direct equivalent offering similar level-shifting and I2C repeating functions.
2. PCA9515A from NXP – Another I2C bus repeater with similar functionality.
3. LTC4311 from Analog Devices – Offers similar I2C bus buffering and level translation.
4. MAX3372E from Maxim Integrated – Provides bidirectional level translation, compatible with I2C.
Always verify voltage levels, frequency, and additional features for compatibility.
1. TCA9517 from Texas Instruments – A direct equivalent offering similar level-shifting and I2C repeating functions.
2. PCA9515A from NXP – Another I2C bus repeater with similar functionality.
3. LTC4311 from Analog Devices – Offers similar I2C bus buffering and level translation.
4. MAX3372E from Maxim Integrated – Provides bidirectional level translation, compatible with I2C.
Always verify voltage levels, frequency, and additional features for compatibility.
Features
The PCA9517DGKR is an I²C-bus repeater designed to enable I²C communication over longer distances or to connect multiple I²C devices. Key features of the PCA9517DGKR include:
1. Dual Supply Voltage Levels: It supports voltage translation between 1.0 V to 5.5 V on the A-side and 2.7 V to 5.5 V on the B-side, accommodating different voltage levels in a system.
2. High-Speed Operation: The device operates up to 1 MHz, making it suitable for high-speed I²C applications.
3. Bidirectional Data Transfer: It allows for bidirectional data flow between buses, facilitating communication in both directions.
4. Level Shifting: The PCA9517DGKR provides level shifting capabilities, enabling communication between different voltage nodes.
5. Enable Pin: It features an enable pin that can be used to isolate the buses or put the device in a low-power state.
6. Noise Suppression: The device includes built-in noise filtering to reduce interference and ensure reliable data transfer.
7. Small Package: Available in a compact package, making it suitable for space-constrained applications.
These features make the PCA9517DGKR ideal for complex I²C networks requiring extended bus lengths and different voltage levels.
1. Dual Supply Voltage Levels: It supports voltage translation between 1.0 V to 5.5 V on the A-side and 2.7 V to 5.5 V on the B-side, accommodating different voltage levels in a system.
2. High-Speed Operation: The device operates up to 1 MHz, making it suitable for high-speed I²C applications.
3. Bidirectional Data Transfer: It allows for bidirectional data flow between buses, facilitating communication in both directions.
4. Level Shifting: The PCA9517DGKR provides level shifting capabilities, enabling communication between different voltage nodes.
5. Enable Pin: It features an enable pin that can be used to isolate the buses or put the device in a low-power state.
6. Noise Suppression: The device includes built-in noise filtering to reduce interference and ensure reliable data transfer.
7. Small Package: Available in a compact package, making it suitable for space-constrained applications.
These features make the PCA9517DGKR ideal for complex I²C networks requiring extended bus lengths and different voltage levels.
Pinout
The PCA9517DGKR is an I²C bus repeater/buffer designed by NXP Semiconductors. It comes in an 8-pin package, typically a VSSOP (also known as TSSOP). The main function of the PCA9517DGKR is to enable I²C-bus communication over longer distances or with different voltage levels on each side, by buffering the signals. It supports multiple voltage levels on the A and B sides, allowing level shifting between 1.0 V to 5.5 V on the A-side and 2.3 V to 5.5 V on the B-side. This makes it suitable for interfacing components operating at different logic levels. Key features include hot-swapping capability, bidirectional data transfer, and high-speed data transmission up to 1 MHz. The 8 pins are typically assigned for VCC(A), VCC(B), GND, SCL(A), SDA(A), SCL(B), SDA(B), and an enable pin for controlling the device operation. This pin configuration helps facilitate the I²C signal buffering and level translation functions for robust communication in complex system designs.
Manufacturer
The PCA9517DGKR is manufactured by Texas Instruments. Texas Instruments, often abbreviated as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits. It is one of the largest semiconductor companies in the world. TI's products are used in a wide range of applications, including in industrial, automotive, personal electronics, and communications equipment. The company is known for its innovations in analog technology, embedded processors, and digital light processing (DLP) technology. Founded in 1930, Texas Instruments has a long history of contributing to advancements in technology and electronics.
Application
The PCA9517DGKR is a level-translating I2C-bus repeater used in various applications to enhance communication between I2C devices with different voltage levels. Key application areas include:
1. Consumer Electronics: Facilitates communication in devices like TVs, gaming consoles, and set-top boxes.
2. Industrial Automation: Enables reliable data transmission in systems like PLCs and HMIs.
3. Automotive Systems: Used in infotainment systems and on-board diagnostics.
4. Computers and Peripherals: Assists in communication between components with different voltage requirements.
5. Communication Equipment: Supports data exchange in networking devices.
These applications benefit from the PCA9517DGKR's ability to buffer and translate signals across varying voltage levels, enhancing I2C bus robustness and flexibility.
1. Consumer Electronics: Facilitates communication in devices like TVs, gaming consoles, and set-top boxes.
2. Industrial Automation: Enables reliable data transmission in systems like PLCs and HMIs.
3. Automotive Systems: Used in infotainment systems and on-board diagnostics.
4. Computers and Peripherals: Assists in communication between components with different voltage requirements.
5. Communication Equipment: Supports data exchange in networking devices.
These applications benefit from the PCA9517DGKR's ability to buffer and translate signals across varying voltage levels, enhancing I2C bus robustness and flexibility.
Package
The PCA9517DGKR is an I2C-bus repeater manufactured by NXP Semiconductors. It comes in a TSSOP (Thin Shrink Small Outline Package) with 8 pins, denoted by the "DGKR" suffix. This package type is compact and suitable for surface-mount technology applications.
