| Parameters | 
                                                                                                            
                                            | Mounting Type | Through Hole | 
                                                                            
                                            | Package / Case | 16-DIP (0.300, 7.62mm) | 
                                                                            
                                            | Surface Mount | NO | 
                                                                            
                                            | Operating Temperature | -55°C~125°C | 
                                                                            
                                            | Packaging | Tube | 
                                                                            
                                            | Series | 74ACT | 
                                                                            
                                            | Part Status | Obsolete | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 3  (168 Hours) | 
                                                                            
                                            | Number of Terminations | 16 | 
                                                                            
                                            | ECCN Code | EAR99 | 
                                                                            
                                            | Type | Decoder/Demultiplexer | 
                                                                            
                                            | Technology | CMOS | 
                                                                            
                                            | Voltage - Supply | 4.5V~5.5V | 
                                                                            
                                            | Terminal Position | DUAL | 
                                                                            
                                            | Number of Functions | 2 | 
                                                                            
                                            | Supply Voltage | 5V | 
                                                                            
                                            | JESD-30 Code | R-PDIP-T16 | 
                                                                            
                                            | Qualification Status | Not Qualified | 
                                                                            
                                            | Circuit | 1 x 2:4 | 
                                                                            
                                            | Supply Voltage-Max (Vsup) | 5.5V | 
                                                                            
                                            | Supply Voltage-Min (Vsup) | 4.5V | 
                                                                            
                                            | Family | ACT | 
                                                                            
                                            | Current - Output High, Low | 24mA 24mA | 
                                                                            
                                            | Output Polarity | INVERTED | 
                                                                            
                                            | Propagation Delay (tpd) | 11.5 ns | 
                                                                            
                                            | Voltage Supply Source | Single Supply | 
                                                                            
                                            | Independent Circuits | 2 | 
                                                                            
                                            | RoHS Status | Non-RoHS Compliant | 
                                                                                                    
                            
                         
                                                CD74ACT139E Overview
In order to save board space, digital switch is located in the 16-DIP (0.300, 7.62mm).It is packaged according to the Tube method.digital switch ic uses the method of Through Hole for mounting.A digital IC Decoder/Demultiplexer is used as the analog component of the multiplexers.By maintaining the operating temperature at -55°C~125°C, turn signal switch will not be affected by external factors.Design engineers have more flexibility when digital controlled switch operates at 4.5V~5.5V voltage.In addition to being a member of the 74ACT series, these multiplexers have a wide range of applications.The basic configuration of this system includes 16 terminations.The multiplexer is supplied with 5V voltage.Among the family of ACT the logic switch is a member.Keeping Vsup at 4.5V will prevent some unwanted failures.Vsup (maximum supply voltage) should be kept as 5.5V to prevent unnecessary failures.
CD74ACT139E Features
Supplied in the 16-DIP (0.300, 7.62mm) package
CD74ACT139E Applications
There are a lot of Rochester Electronics, LLC CD74ACT139E Signal Switches / Multiplexers / Decoders applications. 
- Logic gates for other digital devices
- RF-based home automation system
- Logic circuits
- Make half adder 
- Time division multiplexing system 
- High-performance memory-decoding applications
- Code conversion
- Night vision cameras
- Automatic Monitoring systems
- Electronics industry