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SN75C3221DW from TI,Texas Instruments

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SN75C3221DW

Manufacturer: TI

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

Partnumber Manufacturer Quantity Availability
SN75C3221DW TI 2372 In Stock

Description and Introduction

3-V To 5.5-V Multichannel RS-232 Line Driver/Receiver The SN75C3221DW is a dual-channel RS-232 line driver/receiver manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features:

### **Specifications:**
- **Supply Voltage:** 3.3V or 5V  
- **Data Rate:** Up to 1Mbps  
- **Number of Drivers/Receivers:** 2 Drivers, 2 Receivers  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-20 (DW)  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Interface Standards:** EIA/TIA-232-F  

### **Descriptions:**
The SN75C3221DW is a dual RS-232 transceiver designed for bidirectional data communication. It integrates two drivers and two receivers, supporting both 3.3V and 5V operation. The device includes enhanced ESD protection, making it suitable for harsh environments.  

### **Features:**
- Dual-channel RS-232 transceiver  
- Operates from a single 3.3V or 5V supply  
- Low power consumption  
- Meets or exceeds EIA/TIA-232-F standards  
- ±15kV ESD protection on I/O lines  
- 1µA low-power shutdown mode  
- Compatible with standard RS-232 interfaces  

This information is derived from TI's official datasheet for the SN75C3221DW.

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 1uA shutdown and auto-powerdown, same 16-pin SOIC footprint and 3V-5.5V supply range, widely used as a direct TI SN75C3221 replacement.
  • SP3221ECA-L --: Single-channel RS-232 transceiver in 16-pin SSOP/SOIC with auto-online and shutdown features, functionally equivalent to the SN75C3221DW and available from an alternate supplier.
  • ICL3221ECAZ --: 3V to 5.5V RS-232 transceiver with 1uA standby and auto-powerdown, matching the SN75C3221DW pinout and electrical characteristics for drop-in use.

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