| Parameters | 
                                                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 16-LSSOP (0.154, 3.90mm Width) | 
                                                                            
                                            | Surface Mount | YES | 
                                                                            
                                            | Operating Temperature | -40°C~85°C | 
                                                                            
                                            | Packaging | Tube | 
                                                                            
                                            | JESD-609 Code | e3 | 
                                                                            
                                            | Pbfree Code | yes | 
                                                                            
                                            | Part Status | Obsolete | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 2  (1 Year) | 
                                                                            
                                            | Number of Terminations | 16 | 
                                                                            
                                            | Type | Bus Switch | 
                                                                            
                                            | Terminal Finish | MATTE TIN | 
                                                                            
                                            | Technology | CMOS | 
                                                                            
                                            | Voltage - Supply | 4V~5.5V | 
                                                                            
                                            | Terminal Position | DUAL | 
                                                                            
                                            | Terminal Form | GULL WING | 
                                                                            
                                            | Peak Reflow Temperature (Cel) | 260 | 
                                                                            
                                            | Number of Functions | 4 | 
                                                                            
                                            | Supply Voltage | 5V | 
                                                                            
                                            | Terminal Pitch | 0.635mm | 
                                                                            
                                            | Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED | 
                                                                            
                                            | Pin Count | 16 | 
                                                                            
                                            | JESD-30 Code | R-PDSO-G16 | 
                                                                            
                                            | Qualification Status | COMMERCIAL | 
                                                                            
                                            | Circuit | 1 x 1:1 | 
                                                                            
                                            | Supply Voltage-Max (Vsup) | 5.5V | 
                                                                            
                                            | Supply Voltage-Min (Vsup) | 4V | 
                                                                            
                                            | Number of Ports | 2 | 
                                                                            
                                            | Number of Bits | 1 | 
                                                                            
                                            | Family | CBT/FST/QS/5C/B | 
                                                                            
                                            | Output Characteristics | 3-STATE | 
                                                                            
                                            | Output Polarity | TRUE | 
                                                                            
                                            | Propagation Delay (tpd) | 0.25 ns | 
                                                                            
                                            | Voltage Supply Source | Single Supply | 
                                                                            
                                            | Independent Circuits | 4 | 
                                                                            
                                            | Height Seated (Max) | 1.7272mm | 
                                                                            
                                            | Width | 3.9mm | 
                                                                            
                                            | RoHS Status | ROHS3 Compliant | 
                                                                                                    
                            
                         
                                                FST3126QSC Overview
In order to save board space, digital switch is located in the 16-LSSOP (0.154, 3.90mm Width).Tube is the method used for packaging.Digital switch ic uses a Surface Mount mounting method.the multiplexers uses an analog IC Bus Switch.In the case of -40°C~85°C, turn signal switch will not be affected by external factors.The turn signal switch is designed for use with a 4V~5.5V supply voltage, which gives it a lot of flexibility.Among its basic configurations are 16 terminations.For multiplexer's system, a voltage of 5V is supplied.This turn signal switch consists of 16 component pins.As a result, GULL WING represents the end of the conductors.The CBT/FST/QS/5C/B family includes the logic switch.In this signal multiplexer, there are 1 bits provided.Keeping Vsup at 4V will prevent some unwanted failures.Avoid unnecessary failures by keeping Vsup at 5.5V.This signal switching operates at a resistance of 2.
FST3126QSC Features
Supplied in the 16-LSSOP (0.154, 3.90mm Width) package
FST3126QSC Applications
There are a lot of Rochester Electronics, LLC FST3126QSC Signal Switches / Multiplexers / Decoders applications. 
- Signal router
- Microprocessor memory systems
- Data distribution
- Data demultiplexing
- Relay
- Steel plants
- Microprocessor instruction decoding
- Automation system
- To select different devices in microprocessor input
- Video transmission