Overview
The Texas Instruments TXB0108RGYR is an 8-bit bidirectional voltage-level translator designed to facilitate communication between different voltage domains. This device is part of the TXB family and is particularly useful in systems where different logic voltage levels need to be translated efficiently. The TXB0108RGYR supports voltage translation between 1.2 V to 3.6 V on the A port and 1.65 V to 5.5 V on the B port, making it versatile for a wide range of applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 8 | |
| Technology | CMOS | |
| Mounting Type | Surface Mount | |
| Package Type | VQFN-20-EP (3.5x4.5mm) | |
| Output Type | 3 State | |
| Pin Count | 20 | |
| Minimum Operating Supply Voltage (A Port) | 1.2 V | V |
| Maximum Operating Supply Voltage (A Port) | 3.6 V | V |
| Minimum Operating Supply Voltage (B Port) | 1.65 V | V |
| Maximum Operating Supply Voltage (B Port) | 5.5 V | V |
| Maximum Propagation Delay Time @ Maximum CL | 9.5 ns @ 1.8 V | ns |
| Maximum Operating Temperature | +85 °C | °C |
| Minimum Operating Temperature | -40 °C | °C |
| Data Rate | 100 Mbps | Mbps |
Key Features
- Auto-Direction Sensing: The device automatically senses the direction of data flow, eliminating the need for a direction-control signal.
- Wide Voltage Range: Supports voltage translation between 1.2 V to 3.6 V on the A port and 1.65 V to 5.5 V on the B port.
- High Data Rate: Capable of translating data at rates up to 100 Mbps.
- Low Propagation Delay: Maximum propagation delay of 9.5 ns @ 1.8 V.
- Edge-Rate Accelerators: Includes one-shots to improve the overall data rate.
- 3-State Output: Outputs can be set to high, low, or high-impedance state.
- ESD Protection: Built-in ESD protection for robustness against electrostatic discharge.
Applications
- Mixed-Voltage Systems: Ideal for systems where different logic voltage levels coexist, such as in microcontrollers, FPGAs, and other digital circuits.
- Interface Translation: Useful in translating signals between different voltage domains in various interfaces like SPI, I2C, and UART.
- Consumer Electronics: Suitable for use in consumer electronics where multiple voltage levels are common, such as in smartphones, tablets, and laptops.
- Industrial Automation: Can be used in industrial automation systems where different voltage levels are required for various components.
Q & A
- What is the primary function of the TXB0108RGYR?
The primary function of the TXB0108RGYR is to translate logic voltage levels between different voltage domains, specifically between 1.2 V to 3.6 V and 1.65 V to 5.5 V.
- What is the maximum data rate supported by the TXB0108RGYR?
The TXB0108RGYR supports data rates up to 100 Mbps.
- What is the package type of the TXB0108RGYR?
The TXB0108RGYR comes in a VQFN-20-EP package.
- Does the TXB0108RGYR require a direction-control signal?
No, the TXB0108RGYR does not require a direction-control signal due to its auto-direction sensing capability.
- What are the operating temperature ranges for the TXB0108RGYR?
The operating temperature range is from -40 °C to +85 °C.
- Can the TXB0108RGYR handle open-drain signal translation?
No, the TXB0108RGYR is designed for push-pull CMOS logic outputs. For open-drain signal translation, refer to TI TXS products.
- What is the maximum propagation delay time of the TXB0108RGYR?
The maximum propagation delay time is 9.5 ns @ 1.8 V.
- Does the TXB0108RGYR have built-in ESD protection?
Yes, the TXB0108RGYR includes built-in ESD protection.
- What are some common applications of the TXB0108RGYR?
Common applications include mixed-voltage systems, interface translation in consumer electronics, and industrial automation systems.
- What is the output type of the TXB0108RGYR?
The output type is 3-state, allowing outputs to be set to high, low, or high-impedance state.
