4-Bit Bidirectional Voltage-Level Shifter with Auto Direction Sensing and +/-15 kV ESD Protect 14-VQFN -40 to 85 The TXB0104RGYRG4 is a bidirectional voltage-level translator from Texas Instruments. Here are the factual details:

### **Specifications:**
- **Manufacturer:** Texas Instruments  
- **Type:** 4-Bit Bidirectional Voltage-Level Translator  
- **Technology:** Auto-Direction Sensing  
- **Voltage Levels:**  
  - VCCA: 1.2V to 3.6V  
  - VCCB: 1.65V to 5.5V  
- **Data Rate:** Up to 100 Mbps (push-pull)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** VQFN-14 (RGY)  

### **Descriptions:**
- The TXB0104RGYRG4 is a 4-bit, non-inverting translator that automatically detects and adjusts signal direction without a direction control pin.  
- It is designed for bidirectional voltage translation between different logic levels (e.g., 1.8V ↔ 3.3V, 2.5V ↔ 5V).  
- Features built-in pull-up resistors to eliminate the need for external components.  

### **Features:**
- **Auto-Direction Sensing:** No direction control signal required.  
- **Bidirectional Translation:** Supports mixed-voltage communication.  
- **No External Pull-Up Resistors Needed:** Integrated pull-ups simplify design.  
- **Low Power Consumption:** Optimized for battery-powered applications.  
- **ESD Protection:** Exceeds 2000V HBM per JESD22-A114.  

For further details, refer to the official Texas Instruments datasheet.

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