| Parameters | 
                                                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 20-TSSOP (0.173, 4.40mm Width) | 
                                                                            
                                            | Supplier Device Package | 20-TSSOP | 
                                                                            
                                            | Operating Temperature | -40°C~85°C | 
                                                                            
                                            | Packaging | Tape & Reel (TR) | 
                                                                            
                                            | Series | 74ACT | 
                                                                            
                                            | Part Status | Obsolete | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 1  (Unlimited) | 
                                                                            
                                            | Type | Multiplexer | 
                                                                            
                                            | Voltage - Supply | 4.5V~5.5V | 
                                                                            
                                            | Circuit | 4 x 2:1 | 
                                                                            
                                            | Current - Output High, Low | 24mA 24mA | 
                                                                            
                                            | Voltage Supply Source | Single Supply | 
                                                                            
                                            | Independent Circuits | 1 | 
                                                                            
                                            | RoHS Status | ROHS3 Compliant | 
                                                                                                    
                            
                         
                                                74ACT11257PWR Overview
Providing this information in the 20-TSSOP (0.173, 4.40mm Width) enables digital switch board space to be saved.As a result, it is packaged in a way that is referred to as Tape & Reel (TR).Surface Mount is the mounting method digital switch ic uses.In the multiplexers, the analog IC Multiplexer is used.If the operating temperature is maintained at -40°C~85°C, turn signal switch will not be susceptible to external factors.Designers have greater flexibility when digital controlled switch operates at a 4.5V~5.5V supply voltage.As a member of 74ACT series, the multiplexers can be used for a wide range of applications.
74ACT11257PWR Features
Supplied in the 20-TSSOP (0.173, 4.40mm Width) package
74ACT11257PWR Applications
There are a lot of Rochester Electronics, LLC 74ACT11257PWR Signal Switches / Multiplexers / Decoders applications. 
- A/D converters
- CPU memory location identification
- Automatic Monitoring systems
- CNC machines
- Automation system
- Enabling different functions units in microprocessor instruction decoding
- Code conversion
- HDMI applications
- Data distribution
- D/A converters