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TXB0108ZXYR from TI,Texas Instruments

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TXB0108ZXYR

Manufacturer: TI

8-Bit Bidirectional Voltage-Level Shifter with Auto Direction Sensing and +/-15-kV ESD Protect 20-BGA MICROSTAR JUNIOR -40 to 85

Partnumber Manufacturer Quantity Availability
TXB0108ZXYR TI 2500 In Stock

Description and Introduction

8-Bit Bidirectional Voltage-Level Shifter with Auto Direction Sensing and +/-15-kV ESD Protect 20-BGA MICROSTAR JUNIOR -40 to 85 The TXB0108ZXYR is a bidirectional voltage-level translator from Texas Instruments (TI). Here are the key specifications, descriptions, and features:

### **Specifications:**  
- **Voltage Translation:** Supports bidirectional level shifting between 1.2V and 3.6V on A ports and 1.65V to 5.5V on B ports.  
- **Channels:** 8-bit bidirectional translator.  
- **Data Rate:** Up to 110 Mbps (push-pull) or 1.2 Mbps (open-drain).  
- **Operating Temperature Range:** -40°C to +85°C.  
- **Package:** 20-pin DSBGA (ZXYR).  
- **Supply Voltage (VCCA):** 1.2V to 3.6V.  
- **Supply Voltage (VCCB):** 1.65V to 5.5V.  
- **I/O Type:** Non-inverting.  

### **Description:**  
The TXB0108ZXYR is an 8-bit, auto-direction-sensing voltage-level translator designed for mixed-voltage systems. It eliminates the need for direction control signals, making it suitable for bidirectional communication between devices with different voltage levels.  

### **Features:**  
- **Bidirectional Translation:** No direction control needed.  
- **Automatic Direction Sensing:** Dynamically detects data flow.  
- **No Power Sequencing Requirement:** VCCA or VCCB can be powered first.  
- **OE (Output Enable) Input:** Disables outputs when low.  
- **ESD Protection:** Exceeds 2000V HBM per JESD22-A114.  
- **Low Power Consumption:** Minimal static current draw.  

This device is commonly used in applications like I²C, SPI, UART, and general-purpose level shifting in mixed-voltage systems.  

(Source: Texas Instruments Datasheet for TXB0108ZXYR)

Application Scenarios & Design Considerations

8-Bit Bidirectional Voltage-Level Shifter with Auto Direction Sensing and +/-15-kV ESD Protect 20-BGA MICROSTAR JUNIOR -40 to 85

Alternative Part Number

  • SN74LVC8T245RHLR --: 8-bit dual-supply bus transceiver in a small QFN package, similar level-shifting function with auto-direction sensing replaced by direction control; widely available and pin-compatible in function.
  • 74LVC8T245PW --: 8-bit dual-supply translating transceiver in TSSOP, a common second-source alternative for bidirectional level shifting when direction control is acceptable.
  • FXMA108BQX --: 8-bit auto-direction voltage translator with similar bidirectional level-shifting behavior, suitable as a functional cross-reference for the TXB0108 family.

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