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| Part Number | TRSF3221IDBR | TRSF3222IDBR | TRSF3223IDBR | TRSF3221CDBR | TRSF3221EIDBR | TRSF3221IDB | 
|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | 
| Product Status | Obsolete | Obsolete | Obsolete | Active | Active | Obsolete | 
| Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver | 
| Protocol | RS232 | RS232 | RS232 | RS232 | RS232 | RS232 | 
| Number of Drivers/Receivers | 1/1 | 2/2 | 2/2 | 1/1 | 1/1 | 1/1 | 
| Duplex | Full | Full | Full | Full | Full | Full | 
| Receiver Hysteresis | 500 mV | 300 mV | 500 mV | 500 mV | 500 mV | 500 mV | 
| Data Rate | 1Mbps | 1Mbps | 1Mbps | 1Mbps | 1Mbps | 1Mbps | 
| Voltage - Supply | 3V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | 0°C ~ 70°C | -40°C ~ 85°C | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | 
| Package / Case | 16-SSOP (0.209", 5.30mm Width) | 20-SSOP (0.209", 5.30mm Width) | 20-SSOP (0.209", 5.30mm Width) | 16-SSOP (0.209", 5.30mm Width) | 16-SSOP (0.209", 5.30mm Width) | 16-SSOP (0.209", 5.30mm Width) | 
| Supplier Device Package | 16-SSOP | 20-SSOP | 20-SSOP | 16-SSOP | 16-SSOP | 16-SSOP |