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                            F81434                        
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                The F81434 is a programmable, monolithic multi-protocol 2T/2R transceiver supporting RS-232 and RS-485 / RS-422 drivers and receivers in a 28 pin QFN 4x4 packag      
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                     28-QFN (4x4mm)  
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                        2025-02-26                     | 
                 
                      
                                                                                                     
                
                                                
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                            F81435                        
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The F81435 is programmable, monolithic multi-protocol transceiver device that contains RS-232 and RS-485/RS-422 drivers and receivers. The F81435 can be      
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                     40-QFN (5mm x 5mm)  
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                        2022-03-17                     | 
                 
                      
                                                                                                     
                
                                                
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                            F81433A                        
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The F81433A is a programmable, monolithic multi-protocol 1T/1R transceiver supporting RS-232 and RS-485 / RS-422 drivers and receivers in a 28 pin QFN p      
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                     28-QFN (4mm x 4mm)  
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                        2021-04-15                     | 
                 
                      
                                                                                                     
                
                                                
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                            F81439                        
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The F81439 is programmable, monolithic multi-protocol transceiver device that contains RS-232 and RS-485 / RS-422 drivers and receivers. The F81439 can       
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                     40-TQFN (5mm x 5mm)  
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                        2019-06-21                     | 
                 
                      
                                                                                                     
                
                                                
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                            F81439A                        
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The F81439A is programmable, monolithic multi-protocol transceiver device that contains RS-232 and RS-485 / RS-422 drivers and receivers. The F81439A ca      
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                     40-TQFN (5mm x 5mm)  
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                        2019-06-20                     | 
                 
                      
                                                                                                     
                
                                                
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                            F81438                        
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                The F81438 is programmable, monolithicmulti-protocol transceiver devicethatcontainsRS-232andRS-485/RS-422 driversandreceivers.TheF81438 can be reconfigured into      
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                     28-TSSOP (173 mil)  
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                        2014-11-01                     |