| Parameters | 
                                                                                                            
                                            | Factory Lead Time | 6 Weeks | 
                                                                            
                                            | Lifecycle Status | ACTIVE (Last Updated: 4 days ago) | 
                                                                            
                                            | Mount | Surface Mount | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 20-TSSOP (0.173, 4.40mm Width) | 
                                                                            
                                            | Number of Pins | 20 | 
                                                                            
                                            | Operating Temperature | -40°C~125°C TA | 
                                                                            
                                            | Packaging | Tube | 
                                                                            
                                            | Series | 74AHCT | 
                                                                            
                                            | JESD-609 Code | e4 | 
                                                                            
                                            | Pbfree Code | yes | 
                                                                            
                                            | Part Status | Active | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 1  (Unlimited) | 
                                                                            
                                            | Number of Terminations | 20 | 
                                                                            
                                            | Termination | SMD/SMT | 
                                                                            
                                            | ECCN Code | EAR99 | 
                                                                            
                                            | Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | 
                                                                            
                                            | Subcategory | Bus Driver/Transceiver | 
                                                                            
                                            | Technology | CMOS | 
                                                                            
                                            | Voltage - Supply | 4.5V~5.5V | 
                                                                            
                                            | Terminal Position | DUAL | 
                                                                            
                                            | Terminal Form | GULL WING | 
                                                                            
                                            | Peak Reflow Temperature (Cel) | 260 | 
                                                                            
                                            | Number of Functions | 2 | 
                                                                            
                                            | Supply Voltage | 5V | 
                                                                            
                                            | Terminal Pitch | 0.65mm | 
                                                                            
                                            | Base Part Number | 74AHCT240 | 
                                                                            
                                            | Pin Count | 20 | 
                                                                            
                                            | Output Type | 3-State | 
                                                                            
                                            | Operating Supply Voltage | 5V | 
                                                                            
                                            | Number of Elements | 2 | 
                                                                            
                                            | Polarity | Inverting | 
                                                                            
                                            | Power Supplies | 5V | 
                                                                            
                                            | Load Capacitance | 50pF | 
                                                                            
                                            | Number of Ports | 2 | 
                                                                            
                                            | Propagation Delay | 13 ns | 
                                                                            
                                            | Quiescent Current | 4μA | 
                                                                            
                                            | Turn On Delay Time | 8.4 ns | 
                                                                            
                                            | Family | AHCT/VHCT/VT | 
                                                                            
                                            | Logic Function | Buffer, Inverter | 
                                                                            
                                            | Current - Output High, Low | 8mA 8mA | 
                                                                            
                                            | Logic Type | Buffer, Inverting | 
                                                                            
                                            | Number of Bits per Element | 4 | 
                                                                            
                                            | Prop. Delay@Nom-Sup | 9.5 ns | 
                                                                            
                                            | Control Type | ENABLE LOW | 
                                                                            
                                            | Number of Input Lines | 8 | 
                                                                            
                                            | Count Direction | UNIDIRECTIONAL | 
                                                                            
                                            | Height | 1.2mm | 
                                                                            
                                            | Length | 6.5mm | 
                                                                            
                                            | Width | 4.4mm | 
                                                                            
                                            | Thickness | 1mm | 
                                                                            
                                            | Radiation Hardening | No | 
                                                                            
                                            | REACH SVHC | No SVHC | 
                                                                            
                                            | RoHS Status | ROHS3 Compliant | 
                                                                            
                                            | Lead Free | Lead Free | 
                                                                                                    
                            
                         
                                                SN74AHCT240PW Overview
Logical driver uses a neat 20-TSSOP (0.173, 4.40mm Width) package. Tube external packaging. Available in Surface Mount. Voltage buffer adopts Buffer, Inverting logic prototype. Buffer IC is fed with a voltage of 4.5V~5.5V. Qualified to operate within -40°C~125°C TA. The high and low logic state output current of logical driver is 8mA 8mA. Logical driver can deal with 3-State output (s). All of the 2 elements are put into use. Digital buffer is one of the 74AHCT series devices. 20 terminations with different functions. Buffer IC reuqires a supply voltage of 5V. This logical driver is a member of the AHCT/VHCT/VT family. 20 pins are set with the electric part. Buffer IC is suitable for Surface Mount applications. Logical driver has 20 pins. Enhanced with 2 ports. The bus transceiver employs 4 bits for each element. You can search "74AHCT240" for other related electrical components. Specifically, digital transciever is a kind of Bus Driver/Transceiver. The digital buffer starts up under ENABLE LOW control technology. In quiescent state, the electronic part uses 4μA. It is recommended to use a 5V power supply. To run the part safely and stably in a circuit, 5V recommends users apply 5V on the logical driver. Because of its 8 lines level input capability, buffer IC  is more cost-effective on transimitting signals. 
SN74AHCT240PW Features
Bus Driver/Transceiver
SN74AHCT240PW Applications
There are a lot of Texas Instruments SN74AHCT240PW Buffers & Transceivers applications. 
- Tuner
- Wireless transmission
- IP cameras
- Optical sub-assembly (OSA)
- Wireless network systems
- Digital systems
- AV receiver
- Satellite communications networks
- Point-to-point networking
- Switching system