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SN75C3221PWR from TI,Texas Instruments

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SN75C3221PWR

Manufacturer: TI

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

Partnumber Manufacturer Quantity Availability
SN75C3221PWR TI 2500 In Stock

Description and Introduction

3-V To 5.5-V Multichannel RS-232 Line Driver/Receiver The SN75C3221PWR is a dual-channel RS-232 line driver/receiver manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Supply Voltage (VCC):** 3.3V or 5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Data Rate:** Up to 1Mbps  
- **Number of Drivers/Receivers:** 2 drivers, 2 receivers  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Package:** TSSOP-16  
- **Interface Type:** RS-232  
- **Features Auto-Powerdown:** Yes  

### **Descriptions:**  
The SN75C3221PWR is designed for bidirectional data communication over RS-232 interfaces. It integrates charge-pump circuitry to generate the required RS-232 voltage levels from a single 3.3V or 5V supply.  

### **Features:**  
- **Low Power Consumption:** Auto-powerdown mode reduces power when not in use.  
- **Enhanced ESD Protection:** Protects against electrostatic discharge.  
- **Wide Supply Voltage Range:** Supports 3.3V and 5V operation.  
- **Small Footprint:** TSSOP-16 package for space-constrained applications.  
- **Compliant with EIA/TIA-232-F Standards:** Ensures compatibility with RS-232 interfaces.  

This device is commonly used in industrial, telecom, and computing applications requiring reliable serial 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 the same 1-channel driver/receiver configuration and auto-shutdown feature, widely used as a direct drop-in replacement for the SN75C3221.
  • SP3221EEY-L --: Single-channel RS-232 transceiver in TSSOP with auto-powerdown, matching the SN75C3221 function and supply range, offering a lower-cost alternative.
  • ICL3221EIAZ --: RS-232 transceiver with integrated charge pump and auto-shutdown, functionally equivalent to the SN75C3221 and available in a comparable SSOP package.

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