| Part Number | ST3222BTR | ST3222EBTR | 
|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | 
| Category | Interface - Drivers, Receivers, Transceivers | Interface - Drivers, Receivers, Transceivers | 
|   |   | |
| Product Status | Active | Active | 
| Type | Transceiver | Transceiver | 
| Protocol | RS232 | RS232 | 
| Number of Drivers/Receivers | 2/2 | 2/2 | 
| Duplex | Full | Full | 
| Receiver Hysteresis | 500 mV | 500 mV | 
| Data Rate | 250kbps | 250kbps | 
| Voltage - Supply | 3V ~ 3.6V | 3V ~ 5.5V | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) | 20-TSSOP (0.173", 4.40mm Width) | 
| Supplier Device Package | 20-TSSOP | 20-TSSOP |