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SN75C3221DBRG4 from TI,Texas Instruments

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SN75C3221DBRG4

Manufacturer: TI, BB/TI

3-V To 5.5-V Multichannel RS-232 Line Driver/Receiver 16-SSOP 0 to 70
Partnumber Manufacturer Quantity Availability
SN75C3221DBRG4 TI, BB/TI 3569 In Stock

Description and Introduction

3-V To 5.5-V Multichannel RS-232 Line Driver/Receiver 16-SSOP 0 to 70 The SN75C3221DBRG4 is a dual-channel RS-232 line driver/receiver manufactured by Texas Instruments (TI).  

### **Key Specifications:**  
- **Supply Voltage Range:** 3V to 5.5V  
- **Data Rate:** Up to 1Mbps  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SSOP-16  
- **Number of Drivers/Receivers:** 2/2  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Low Power Consumption:** Auto-Powerdown feature  

### **Descriptions & Features:**  
- Designed for RS-232 communication in battery-powered and portable applications.  
- Integrated charge pump for single-supply operation (no external voltage converter needed).  
- Meets or exceeds TIA/EIA-232-F standards.  
- Enhanced ESD protection on driver outputs and receiver inputs.  
- Auto-Powerdown feature conserves power when the device is inactive.  
- Suitable for industrial, telecom, and computing applications.  

This device is commonly used in serial communication interfaces such as modems, POS terminals, and networking equipment.

Application Scenarios & Design Considerations

3-V To 5.5-V Multichannel RS-232 Line Driver/Receiver 16-SSOP 0 to 70

Alternative Part Number

  • MAX3221ECAE+ --: Pin-compatible RS-232 transceiver with the same 1-channel driver/receiver configuration and auto-shutdown feature, widely used as a direct drop-in for the SN75C3221 family.
  • SP3221EEY-L --: Equivalent single-channel RS-232 transceiver with integrated charge pump and auto-powerdown, matching the SN75C3221DBR functionality in a similar SSOP package.
  • ICL3221ECAZ --: Industry-standard RS-232 transceiver offering the same driver/receiver count and auto-shutdown capability, suitable as a functional replacement for the SN75C3221DBRG4.
  • SP3221ECA-L --: Equivalent single-channel RS-232 transceiver with auto-shutdown and charge pump, matching the SN75C3221 feature set and package footprint.

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