| Parameters | 
                                                                                                                        
                                                | Mfr | STMicroelectronics | 
                                                                                    
                                                | Series | - | 
                                                                                    
                                                | Package | Tape & Reel (TR) | 
                                                                                    
                                                | Product Status | Obsolete | 
                                                                                    
                                                | Type | Transceiver | 
                                                                                    
                                                | Protocol | RS232 | 
                                                                                    
                                                | Number of Drivers/Receivers | 5/3 | 
                                                                                    
                                                | Duplex | Full | 
                                                                                    
                                                | Receiver Hysteresis | 500 mV | 
                                                                                    
                                                | Data Rate | 400kbps | 
                                                                                    
                                                | Voltage - Supply | 3V ~ 5.5V | 
                                                                                    
                                                | Operating Temperature | -40°C ~ 85°C | 
                                                                                    
                                                | Mounting Type | Surface Mount | 
                                                                                    
                                                | Package / Case | 28-SSOP (0.209", 5.30mm Width) | 
                                                                                    
                                                | Supplier Device Package | 28-SSOP | 
                                                                                    
                                                | Base Product Number | ST3243 | 
                                                                                    
                                                | RoHS Status | RoHS non-compliant | 
                                                                                    
                                                | Moisture Sensitivity Level (MSL) | 3  (168 Hours) | 
                                                                                    
                                                | REACH Status | REACH Unaffected | 
                                                                                    
                                                | ECCN | EAR99 | 
                                                                                    
                                                | HTSUS | 8542.39.0001 | 
                                                                                    
                                                | Standard Package | 2,500 | 
                                                                                                                
                                
                             
                                                5/3 Transceiver Full RS232 28-SSOP