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ST4G3234BJR from ST,ST Microelectronics

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ST4G3234BJR

Manufacturer: ST, STM, ST,ST

4-BIT DUAL SUPPLY BUS BUFFER LEVEL TRANSLATOR WITH A SIDE SERIES RESISTOR

Partnumber Manufacturer Quantity Availability
ST4G3234BJR ST, STM, ST,ST 63500 In Stock

Description and Introduction

4-BIT DUAL SUPPLY BUS BUFFER LEVEL TRANSLATOR WITH A SIDE SERIES RESISTOR **Manufacturer:** STMicroelectronics (STM)  

**Part Number:** ST4G3234BJR  

### **Specifications:**  
- **Type:** 4-Bit Bidirectional Voltage-Level Translator  
- **Voltage Levels:** Supports translation between 1.2V, 1.8V, 2.5V, 3.3V, and 5V  
- **Direction Control:** Bidirectional with automatic direction sensing  
- **Channels:** 4-bit (4 channels)  
- **Operating Voltage:**  
  - VREF_A: 1.2V to 5.5V  
  - VREF_B: 1.2V to 5.5V  
- **Data Rate:** Up to 100 Mbps  
- **ESD Protection:**  
  - Human Body Model (HBM): ±8 kV  
  - IEC 61000-4-2 (Contact Discharge): ±4 kV  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** TSSOP-20  

### **Descriptions:**  
The ST4G3234BJR is a 4-bit bidirectional voltage-level translator designed for mixed-voltage applications. It enables seamless communication between devices operating at different voltage levels without requiring a direction control signal.  

### **Features:**  
- Automatic direction sensing (no direction control pin needed)  
- Supports voltage translation between 1.2V, 1.8V, 2.5V, 3.3V, and 5V  
- Low power consumption  
- High-speed operation (up to 100 Mbps)  
- Robust ESD protection  
- TSSOP-20 package for compact PCB design  
- Fully static operation (no clock required)  

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

Application Scenarios & Design Considerations

4-BIT DUAL SUPPLY BUS BUFFER LEVEL TRANSLATOR WITH A SIDE SERIES RESISTOR

Alternative Part Number

  • 74LVC1G3157GV --: Single-pole double-throw analog switch in a small package, functionally similar to the ST4G3234BJR analog switch and widely available.
  • TS5A3157DCKR --: Low-voltage SPDT analog switch with comparable on-resistance and switching characteristics, suitable as a drop-in functional replacement.
  • NLAS4157DFT2G --: Low-voltage analog switch offering similar signal routing function and package options for the ST4G3234BJR.
  • SN74AHC1G125DBVR --: Single buffer/line driver in SOT-23-5 with similar logic function and supply range; widely available and pin-compatible in function.
  • NC7SZ125P5X --: TinyLogic single buffer with 3-state output in SC-70-5, offering comparable performance and low power for signal buffering applications.
  • 74LVC1G125GW --: Single bus buffer/line driver with 3-state output in TSSOP-5, supporting 1.65V to 5.5V operation as a functional substitute.

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