| Parameters | 
                                
                                                                                                            
                                            | Package / Case | 
                                            24-SOIC (0.295, 7.50mm Width) | 
                                        
                                                                            
                                            | Surface Mount | 
                                            YES | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            0°C~70°C | 
                                        
                                                                            
                                            | Packaging | 
                                            Tube | 
                                        
                                                                            
                                            | Published | 
                                            2006 | 
                                        
                                                                            
                                            | JESD-609 Code | 
                                            e0 | 
                                        
                                                                            
                                            | Part Status | 
                                            Obsolete | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            1 (Unlimited) | 
                                        
                                                                            
                                            | Number of Terminations | 
                                            24 | 
                                        
                                                                            
                                            | Terminal Finish | 
                                            Tin/Lead (Sn85Pb15) | 
                                        
                                                                            
                                            | Technology | 
                                            CMOS | 
                                        
                                                                            
                                            | Voltage - Supply | 
                                            3V~5.5V | 
                                        
                                                                            
                                            | Terminal Position | 
                                            DUAL | 
                                        
                                                                            
                                            | Terminal Form | 
                                            GULL WING | 
                                        
                                                                            
                                            | Peak Reflow Temperature (Cel) | 
                                            245 | 
                                        
                                                                            
                                            | Supply Voltage | 
                                            5V | 
                                        
                                                                            
                                            | Terminal Pitch | 
                                            1.27mm | 
                                        
                                                                            
                                            | Base Part Number | 
                                            DS2490 | 
                                        
                                                                            
                                            | JESD-30 Code | 
                                            R-PDSO-G24 | 
                                        
                                                                            
                                            | Function | 
                                            Bridge, USB to 1-Wire® | 
                                        
                                                                            
                                            | Operating Supply Voltage | 
                                            5V | 
                                        
                                                                            
                                            | Interface | 
                                            1-Wire® | 
                                        
                                                                            
                                            | Operating Supply Current | 
                                            20mA | 
                                        
                                                                            
                                            | Nominal Supply Current | 
                                            20mA | 
                                        
                                                                            
                                            | uPs/uCs/Peripheral ICs Type | 
                                            BUS CONTROLLER, UNIVERSAL SERIAL BUS | 
                                        
                                                                            
                                            | Clock Frequency | 
                                            12MHz | 
                                        
                                                                            
                                            | Data Rate | 
                                            12 Mbps | 
                                        
                                                                            
                                            | Protocol | 
                                            USB | 
                                        
                                                                            
                                            | Data Transfer Rate-Max | 
                                            1.5 MBps | 
                                        
                                                                            
                                            | Height Seated (Max) | 
                                            2.65mm | 
                                        
                                                                            
                                            | Length | 
                                            15.4mm | 
                                        
                                                                            
                                            | Width | 
                                            7.5mm | 
                                        
                                                                            
                                            | Radiation Hardening | 
                                            No | 
                                        
                                                                            
                                            | RoHS Status | 
                                            Non-RoHS Compliant | 
                                        
                                                                            
                                            | Lead Free | 
                                            Contains Lead | 
                                        
                                                                                                    
                            
                         
                                                DS2490Y Overview
24-SOIC (0.295, 7.50mm Width) contains it. It's packaged in the shape of a Tube. A reliable operation requires a temperature that is regulated to 0°C~70°C. It should be able to operate on a 3V~5.5VV power supply. Among other things, it contains 24 terminations. Providing a voltage of 5V leads to high efficiency. As a member of the DS2490 family of numbers, it is a prime number. I have found that this gadget has a total of BUS CONTROLLER, UNIVERSAL SERIAL BUS uPs/uCs/peripheral ICs in total. It is set to 20mA to supply the gadget with a constant current. It is important to note that the device's clock runs at a frequency called 12MHz. A 5V-volt supply voltage is recommended for maximum efficiency. 
DS2490Y Features
12MHz clock frequency
DS2490Y Applications
There are a lot of Maxim Integrated DS2490Y Controllers Interface ICs applications. 
- Smart Metering
 - Printers
 - Isolated RS-232/RS-485: Directly Drives Opto-Couplers
 - PDAs
 - Factory Automation and Process Controls
 - External USB Storage
 - Embedded Systems
 - Gateways
 - HVAC and Building Control 
 - STBs