| Parameters | 
                                                                                                            
                                            | Current - Output High, Low | 2.6mA 24mA | 
                                                                            
                                            | Voltage Supply Source | Single Supply | 
                                                                            
                                            | Independent Circuits | 1 | 
                                                                            
                                            | RoHS Status | ROHS3 Compliant | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 16-SOIC (0.209, 5.30mm Width) | 
                                                                            
                                            | Supplier Device Package | 16-SO | 
                                                                            
                                            | Operating Temperature | 0°C~70°C | 
                                                                            
                                            | Packaging | Tape & Reel (TR) | 
                                                                            
                                            | Series | 74ALS | 
                                                                            
                                            | Part Status | Obsolete | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 3  (168 Hours) | 
                                                                            
                                            | Type | Multiplexer | 
                                                                            
                                            | Voltage - Supply | 4.5V~5.5V | 
                                                                            
                                            | Circuit | 2 x 4:1 | 
                                                                                                    
                            
                         
                                                SN74ALS253NSR Overview
Digital switch is provided in the 16-SOIC (0.209, 5.30mm Width) for the purpose of saving board space.The package is in the form of Tape & Reel (TR).The method digital switch ic adopts for mounting is Surface Mount.the multiplexers uses IC Multiplexer as the analog IC.A temperature of 0°C~70°C will not leave the turn signal swturn signal switchch susceptible to external influences.Using a 4.5V~5.5V supply voltage provides digital controlled switch's superior flexibility for designers.With the 74ALS series, the multiplexers are suitable for a diverse range of applications.
SN74ALS253NSR Features
Supplied in the 16-SOIC (0.209, 5.30mm Width) package
SN74ALS253NSR Applications
There are a lot of Rochester Electronics, LLC SN74ALS253NSR Signal Switches / Multiplexers / Decoders applications. 
- Frequency multiplexing system
- RF-based home automation system
- Enabling different functions units in microprocessor instruction decoding
- Relay
- Used to connect a single source to multiple destinations
- High-performance memory-decoding applications
- Metal detectors
- Steel plants
- Enabling block of memory depending on address in memory chips
- To select different devices in microprocessor output