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SN65C3221DBR from TI,Texas Instruments

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SN65C3221DBR

Manufacturer: TI

3-V To 5.5-V Multichannel RS-232 Line Driver/Receiver

Partnumber Manufacturer Quantity Availability
SN65C3221DBR TI 3500 In Stock

Description and Introduction

3-V To 5.5-V Multichannel RS-232 Line Driver/Receiver The SN65C3221DBR is a 3.3-V dual-channel RS-232 line driver/receiver manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Supply Voltage (VCC):** 3.3 V  
- **Data Rate:** Up to 1 Mbps  
- **Operating Temperature Range:** -40°C to +85°C  
- **Number of Drivers/Receivers:** 2/2  
- **ESD Protection:** ±15 kV (Human Body Model)  
- **Package:** SSOP-16 (DBR)  
- **Interface Standard:** EIA/TIA-232-F  

### **Descriptions:**  
- Designed for low-power RS-232 communication.  
- Operates from a single 3.3-V power supply.  
- Meets or exceeds EIA/TIA-232-F standards.  

### **Features:**  
- **Low Power Consumption:**  
  - 1 µA (Typical) in shutdown mode.  
- **Enhanced ESD Protection:**  
  - Protects against electrostatic discharge.  
- **Auto-Powerdown Feature:**  
  - Automatically enters low-power mode when not in use.  
- **Wide Supply Voltage Range:**  
  - 3 V to 5.5 V (for flexible power options).  

This device is commonly used in industrial, networking, and embedded systems requiring RS-232 communication.

Application Scenarios & Design Considerations

3-V To 5.5-V Multichannel RS-232 Line Driver/Receiver

Alternative Part Number

  • MAX3221ECAE+ --: Pin-compatible RS-232 transceiver with similar 1-channel driver/receiver function and auto-shutdown, widely used as a direct substitute for the SN65C3221 in 5V systems.
  • SP3221ECY-L --: Single-channel RS-232 transceiver with integrated charge pump and auto-powerdown, functionally equivalent to the SN65C3221DBR and available in similar small packages.
  • ICL3221ECAZ --: RS-232 transceiver with 1 driver/1 receiver and auto-shutdown feature, matching the core functionality and supply range of the original TI device.

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