| Parameters | 
                                
                                                                                                            
                                            | Factory Lead Time | 
                                            7 Weeks | 
                                        
                                                                            
                                            | Mount | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Package / Case | 
                                            128-TQFP | 
                                        
                                                                            
                                            | Number of Pins | 
                                            128 | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C~85°C | 
                                        
                                                                            
                                            | Packaging | 
                                            Tray | 
                                        
                                                                            
                                            | Published | 
                                            2002 | 
                                        
                                                                            
                                            | JESD-609 Code | 
                                            e3 | 
                                        
                                                                            
                                            | Part Status | 
                                            Active | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            3 (168 Hours) | 
                                        
                                                                            
                                            | Number of Terminations | 
                                            128 | 
                                        
                                                                            
                                            | Terminal Finish | 
                                            Matte Tin (Sn) - annealed | 
                                        
                                                                            
                                            | Technology | 
                                            CMOS | 
                                        
                                                                            
                                            | Terminal Position | 
                                            QUAD | 
                                        
                                                                            
                                            | Terminal Form | 
                                            GULL WING | 
                                        
                                                                            
                                            | Peak Reflow Temperature (Cel) | 
                                            260 | 
                                        
                                                                            
                                            | Supply Voltage | 
                                            3.3V | 
                                        
                                                                            
                                            | Terminal Pitch | 
                                            0.4mm | 
                                        
                                                                            
                                            | Time@Peak Reflow Temperature-Max (s) | 
                                            40 | 
                                        
                                                                            
                                            | Base Part Number | 
                                            LAN9420 | 
                                        
                                                                            
                                            | Function | 
                                            Controller | 
                                        
                                                                            
                                            | Operating Supply Voltage | 
                                            3.3V | 
                                        
                                                                            
                                            | Supply Voltage-Max (Vsup) | 
                                            3.6V | 
                                        
                                                                            
                                            | Interface | 
                                            PCI | 
                                        
                                                                            
                                            | Operating Supply Current | 
                                            125mA | 
                                        
                                                                            
                                            | Clock Frequency | 
                                            25MHz | 
                                        
                                                                            
                                            | Data Rate | 
                                            100 Mbps | 
                                        
                                                                            
                                            | Protocol | 
                                            Ethernet | 
                                        
                                                                            
                                            | Boundary Scan | 
                                            NO | 
                                        
                                                                            
                                            | Low Power Mode | 
                                            YES | 
                                        
                                                                            
                                            | Number of Transceivers | 
                                            1 | 
                                        
                                                                            
                                            | Number of Serial I/Os | 
                                            3 | 
                                        
                                                                            
                                            | Standards | 
                                            10/100 Base-T/TX PHY | 
                                        
                                                                            
                                            | Bus Compatibility | 
                                            PCI | 
                                        
                                                                            
                                            | Data Encoding/Decoding Method | 
                                            NRZI; BIPH-LEVEL(MANCHESTER) | 
                                        
                                                                            
                                            | Height | 
                                            1.05mm | 
                                        
                                                                            
                                            | Length | 
                                            14.2mm | 
                                        
                                                                            
                                            | Width | 
                                            14.2mm | 
                                        
                                                                            
                                            | Radiation Hardening | 
                                            No | 
                                        
                                                                            
                                            | REACH SVHC | 
                                            No SVHC | 
                                        
                                                                            
                                            | RoHS Status | 
                                            ROHS3 Compliant | 
                                        
                                                                            
                                            | Lead Free | 
                                            Lead Free | 
                                        
                                                                                                    
                            
                         
                                                LAN9420I-NU Overview
It can be found in the 128-TQFP package that you can download. With its Tray-shaped packaging, it's easy to carry. Regulating the temperature to -40°C~85°C is crucial to ensuring reliable operation. There are terminations of type 128 in it. 3.3V is an ideal supply voltage for high efficiency. It is a member of the LAN9420 family of numbers. In order for the device to function, 128 pins must be used. There is a setting on the gadget that sets the supply current to 125mA. There is a clock running on the device at a frequency of 25MHz. Choosing 3.3V as the supply voltage will maximi3.3Ve efficiency. It has 3 serial I/Os. Transceivers for the 1 band are available. This device has a maximum supply voltage (Vsup) set to 3.6V. 
LAN9420I-NU Features
25MHz clock frequency
LAN9420I-NU Applications
There are a lot of Microchip Technology LAN9420I-NU Controllers Interface ICs applications. 
- Car Cigarette Jack
 - Dongles and accessories
 - Sensitive Applications
 - Intelligent Street Lights
 - 0 to 10V Dimming Luminaires
 - UART in SPI Systems
 - Docking
 - Notebook PCs
 - TVs
 - Gaming Devices and E?books