4-Bit Bidirectional Voltage-Level Shifter with Auto Direction Sensing and +/-15 kV ESD Protect 14-TSSOP -40 to 85 The TXB0104PWR is a 4-bit bidirectional voltage-level translator manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Type:** Bidirectional voltage-level translator  
- **Number of Bits:** 4  
- **Voltage Levels Supported:**  
  - **VCCA:** 1.2V to 3.6V  
  - **VCCB:** 1.65V to 5.5V  
- **Data Rate:** Up to 100 Mbps  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** TSSOP-14  
- **I/O Type:** Push-pull (no external pull-up resistors required)  
- **ESD Protection:** Exceeds 2000V (HBM)  

### **Descriptions and Features:**  
- **Bidirectional Translation:** Automatically detects direction without a direction control pin.  
- **No Power Sequencing Required:** VCCA or VCCB can be powered first.  
- **Low Power Consumption:** Supports partial power-down mode.  
- **High Drive Strength:** Supports push-pull CMOS outputs.  
- **Applications:** Used in I²C, SPI, UART, and general-purpose level shifting between different voltage domains.  

This device is commonly used in mixed-voltage systems for seamless communication between low-voltage and higher-voltage components.

4-Bit Bidirectional Voltage-Level Shifter with Auto Direction Sensing and +/-15 kV ESD Protect 14-TSSOP -40 to 85