仕様
| 属性 | 値 |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| Type | Buffer, ReDriver |
| Applications | I²C |
| Input | 2-Wire Bus |
| Output | 2-Wire Bus |
| DataRate(Max) | 400kHz |
| NumberofChannels | 1 |
| Capacitance-Input | 6.5 pF |
| Voltage-Supply | 2.7V ~ 5.5V |
| Current-Supply | 3mA |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) |
概要
Description
The TCA9509DGKR is a bidirectional I2C (Inter-Integrated Circuit) bus and SMBus (System Management Bus) voltage-level translator manufactured by Texas Instruments. It is designed to enable communication between I2C devices that operate at different voltage levels, specifically facilitating communication between I2C buses with different logic levels.
Key features of the TCA9509DGKR include:
1. Voltage-Level Translation: It supports voltage translation between 0.9 V to 5.5 V on the A-side and 2.2 V to 5.5 V on the B-side, making it versatile for connecting lower-voltage and higher-voltage I2C devices.
2. Bidirectional Communication: The device provides bidirectional signal translation without the need for a direction pin, making it simple to implement in designs.
3. I2C Compatibility: It is fully compatible with I2C and SMBus standards, supporting standard-mode, fast-mode, and fast-mode plus I2C applications.
4. High-Speed Data Transfer: It allows speeds up to 1 MHz, suitable for high-speed I2C applications.
5. Low Propagation Delay: The device offers low propagation delay, ensuring efficient data transfer between devices.
The TCA9509DGKR is suitable for applications like consumer electronics, industrial, and communication systems where I2C level translation is needed.
Key features of the TCA9509DGKR include:
1. Voltage-Level Translation: It supports voltage translation between 0.9 V to 5.5 V on the A-side and 2.2 V to 5.5 V on the B-side, making it versatile for connecting lower-voltage and higher-voltage I2C devices.
2. Bidirectional Communication: The device provides bidirectional signal translation without the need for a direction pin, making it simple to implement in designs.
3. I2C Compatibility: It is fully compatible with I2C and SMBus standards, supporting standard-mode, fast-mode, and fast-mode plus I2C applications.
4. High-Speed Data Transfer: It allows speeds up to 1 MHz, suitable for high-speed I2C applications.
5. Low Propagation Delay: The device offers low propagation delay, ensuring efficient data transfer between devices.
The TCA9509DGKR is suitable for applications like consumer electronics, industrial, and communication systems where I2C level translation is needed.
Equivalent
The TCA9509DGKR is a level-translating I2C bus repeater. Equivalent products include:
1. PCA9517A by NXP
2. PCA9617A by NXP
3. LTC4311 by Analog Devices
4. PCA9306 by NXP (for simpler level translation requirements)
5. PI4MSD5V9549 by Diodes Incorporated
Ensure compatibility by reviewing the datasheets for specific electrical characteristics and features.
1. PCA9517A by NXP
2. PCA9617A by NXP
3. LTC4311 by Analog Devices
4. PCA9306 by NXP (for simpler level translation requirements)
5. PI4MSD5V9549 by Diodes Incorporated
Ensure compatibility by reviewing the datasheets for specific electrical characteristics and features.
Features
The TCA9509DGKR is a dual bidirectional I2C buffer/level translator designed by Texas Instruments. It facilitates communication between I2C devices operating at different voltage levels, making it suitable for mixed-voltage systems. Key features include:
1. Voltage Level Translation: Supports level shifting between 0.9V to 5.5V on A-side and 2.7V to 5.5V on B-side.
2. Bidirectional Communication: Allows data flow in both directions on the I2C bus.
3. Buffering Capability: Improves drive capability and signal integrity, supporting up to 400 pF on B-side.
4. Supports Standard and Fast Mode I2C: Compatible with I2C speeds up to 400 kHz.
5. Low Standby Current: Features low power consumption, making it suitable for battery-operated devices.
6. Hot Swap Compliance: Allows for live insertion/removal of devices without disrupting bus communication.
7. Wide Temperature Range: Operates from -40°C to 85°C, suitable for industrial applications.
8. Small Package: Available in a 10-pin VSSOP package, optimizing space on PCBs.
These features make the TCA9509DGKR ideal for interfacing devices with different logic levels in a compact and efficient manner.
1. Voltage Level Translation: Supports level shifting between 0.9V to 5.5V on A-side and 2.7V to 5.5V on B-side.
2. Bidirectional Communication: Allows data flow in both directions on the I2C bus.
3. Buffering Capability: Improves drive capability and signal integrity, supporting up to 400 pF on B-side.
4. Supports Standard and Fast Mode I2C: Compatible with I2C speeds up to 400 kHz.
5. Low Standby Current: Features low power consumption, making it suitable for battery-operated devices.
6. Hot Swap Compliance: Allows for live insertion/removal of devices without disrupting bus communication.
7. Wide Temperature Range: Operates from -40°C to 85°C, suitable for industrial applications.
8. Small Package: Available in a 10-pin VSSOP package, optimizing space on PCBs.
These features make the TCA9509DGKR ideal for interfacing devices with different logic levels in a compact and efficient manner.
Pinout
The TCA9509DGKR is an I²C bus repeater from Texas Instruments, designed to enable I²C communication between devices with different voltage levels. It has an 8-pin VSSOP (DGK) package. Here is a brief overview of its pin configuration and functions:
1. A0 (Pin 1): Address input. Used to set the I²C device address.
2. A1 (Pin 2): Address input. Used in conjunction with A0 to set the I²C device address.
3. VCCA (Pin 3): Supply voltage for the A-side bus, supporting lower voltage levels.
4. SCLA (Pin 4): Serial clock line for the A-side of the I²C bus.
5. SDAA (Pin 5): Serial data line for the A-side of the I²C bus.
6. SCLB (Pin 6): Serial clock line for the B-side of the I²C bus.
7. SDAB (Pin 7): Serial data line for the B-side of the I²C bus.
8. VCCB (Pin 8): Supply voltage for the B-side bus, supporting higher voltage levels.
The TCA9509DGKR facilitates level translation between different I²C bus voltage levels, ensuring proper communication in mixed-voltage I²C systems.
1. A0 (Pin 1): Address input. Used to set the I²C device address.
2. A1 (Pin 2): Address input. Used in conjunction with A0 to set the I²C device address.
3. VCCA (Pin 3): Supply voltage for the A-side bus, supporting lower voltage levels.
4. SCLA (Pin 4): Serial clock line for the A-side of the I²C bus.
5. SDAA (Pin 5): Serial data line for the A-side of the I²C bus.
6. SCLB (Pin 6): Serial clock line for the B-side of the I²C bus.
7. SDAB (Pin 7): Serial data line for the B-side of the I²C bus.
8. VCCB (Pin 8): Supply voltage for the B-side bus, supporting higher voltage levels.
The TCA9509DGKR facilitates level translation between different I²C bus voltage levels, ensuring proper communication in mixed-voltage I²C systems.
Manufacturer
The TCA9509DGKR is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which are used in a wide range of electronic devices. The company is one of the largest producers of analog technology components and embedded processors. It serves industries including automotive, industrial, personal electronics, communications equipment, and enterprise systems. Texas Instruments is known for its innovation in the semiconductor industry and has a broad portfolio of products that support a wide spectrum of applications.
Application
The TCA9509DGKR is primarily used in applications requiring I2C bus communication with level shifting between different voltage levels. Key application areas include:
1. Consumer Electronics: Facilitates communication between components operating at different voltage levels.
2. Industrial Systems: Used in systems requiring robust, multi-voltage interfacing.
3. Telecommunications Equipment: Ensures reliable data transfer across varying voltage domains.
4. Automotive Systems: Supports communication in mixed voltage environments within vehicles.
5. Embedded Systems: Assists in interfacing microcontrollers with peripheral devices.
6. Medical Devices: Enables efficient data communication in equipment with diverse voltage requirements.
Its ability to handle bi-directional I2C and SMBus level translation makes it versatile for multiple industries.
1. Consumer Electronics: Facilitates communication between components operating at different voltage levels.
2. Industrial Systems: Used in systems requiring robust, multi-voltage interfacing.
3. Telecommunications Equipment: Ensures reliable data transfer across varying voltage domains.
4. Automotive Systems: Supports communication in mixed voltage environments within vehicles.
5. Embedded Systems: Assists in interfacing microcontrollers with peripheral devices.
6. Medical Devices: Enables efficient data communication in equipment with diverse voltage requirements.
Its ability to handle bi-directional I2C and SMBus level translation makes it versatile for multiple industries.
Package
The TCA9509DGKR is available in a VSSOP (Very Thin Shrink Small Outline Package) with 10 pins, also referred to as MSOP-10. This package type is compact, making it suitable for space-constrained applications.
