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MAX249CQH from MAXIM,MAXIM - Dallas Semiconductor

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MAX249CQH

Manufacturer: MAXIM

+5V-Powered, Multichannel RS-232 Drivers/Receivers

Partnumber Manufacturer Quantity Availability
MAX249CQH MAXIM 156 In Stock

Description and Introduction

+5V-Powered, Multichannel RS-232 Drivers/Receivers The MAX249CQH is a quad RS-232 line driver/receiver manufactured by Maxim Integrated. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Manufacturer:** MAXIM (Maxim Integrated)  
### **Part Number:** MAX249CQH  

### **Description:**  
The MAX249CQH is a quad RS-232 transceiver designed for serial communication applications. It integrates four drivers and four receivers, making it suitable for full-duplex data transmission.  

### **Key Features:**  
- **Interface Type:** RS-232  
- **Number of Drivers/Receivers:** 4 Drivers / 4 Receivers  
- **Supply Voltage:** Single +5V supply  
- **Data Rate:** Up to 120kbps  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package:** 28-pin QSOP (Quarter Small Outline Package)  
- **Compliance:** Meets EIA/TIA-232 and V.28/V.24 standards  
- **Low Power Consumption:** Typically 5mA supply current  

### **Applications:**  
- Industrial control systems  
- Modems and serial ports  
- Point-of-sale terminals  
- Networking equipment  

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

Application Scenarios & Design Considerations

+5V-Powered, Multichannel RS-232 Drivers/Receivers

Alternative Part Number

  • ADM2490E --: Analog Devices RS-485/RS-422 transceiver in the same family lineage as the original Maxim part, offering comparable multi-channel driver/receiver functionality and a direct functional replacement path.
  • SN75176B --: Widely available RS-485 differential bus transceiver with similar driver/receiver characteristics, commonly used as a drop-in substitute in industrial serial communication designs.
  • MAX3485 --: Maxim 3.3V RS-485 transceiver with similar signaling function; suitable when supply and interface levels are compatible, and from the same manufacturer ecosystem.

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