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TCA9509DGKR from TI,Texas Instruments

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TCA9509DGKR

Manufacturer: TI

Level Translating I2C Bus Repeater 8-VSSOP -40 to 85

Partnumber Manufacturer Quantity Availability
TCA9509DGKR TI 1 In Stock

Description and Introduction

Level Translating I2C Bus Repeater 8-VSSOP -40 to 85 The TCA9509DGKR is a level-translating I²C bus buffer manufactured by Texas Instruments (TI). Below are the specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)  
- **Part Number:** TCA9509DGKR  
- **Package:** VSSOP-8 (DGK)  
- **Supply Voltage Range (Vref_A):** 1.65V to 5.5V  
- **Supply Voltage Range (Vref_B):** 2.3V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **I²C Bus Capacitance Buffering:** Supports up to 400 pF on either side  
- **Maximum Data Rate:** 400 kHz (Fast-mode I²C)  
- **Low Standby Current:** < 1 µA  

### **Descriptions:**
The TCA9509DGKR is a bidirectional I²C bus buffer with level-shifting capabilities, designed to interface between low-voltage and higher-voltage I²C buses. It prevents bus lock-up and supports hot insertion, making it suitable for applications where multiple devices operate at different voltage levels.  

### **Features:**
- **Bidirectional Voltage Translation:** Allows communication between I²C buses operating at different voltages (1.65V to 5.5V on Side A and 2.3V to 5.5V on Side B).  
- **No Direction Control Needed:** Automatic sensing and translation of I²C signals.  
- **Prevents Bus Latch-Up:** Isolates bus capacitance to prevent communication failures.  
- **Hot Insertion Support:** Tolerates live insertion of devices without bus disruption.  
- **Low Power Consumption:** Minimal standby current for energy-efficient operation.  
- **ESD Protection:** ±4 kV HBM (Human Body Model) for robustness.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

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