| Parameters | 
                                
                                                                                                            
                                            | Factory Lead Time | 
                                            8 Weeks | 
                                        
                                                                            
                                            | Contact Plating | 
                                            Gold | 
                                        
                                                                            
                                            | Mount | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Mounting Type | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Package / Case | 
                                            20-VFQFN Exposed Pad | 
                                        
                                                                            
                                            | Number of Pins | 
                                            20 | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C~125°C TA | 
                                        
                                                                            
                                            | Packaging | 
                                            Tape & Reel (TR) | 
                                        
                                                                            
                                            | Published | 
                                            2005 | 
                                        
                                                                            
                                            | Series | 
                                            74VHC | 
                                        
                                                                            
                                            | JESD-609 Code | 
                                            e4 | 
                                        
                                                                            
                                            | Part Status | 
                                            Active | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            1  (Unlimited) | 
                                        
                                                                            
                                            | Number of Terminations | 
                                            20 | 
                                        
                                                                            
                                            | Technology | 
                                            CMOS | 
                                        
                                                                            
                                            | Voltage - Supply | 
                                            2V~5.5V | 
                                        
                                                                            
                                            | Terminal Position | 
                                            QUAD | 
                                        
                                                                            
                                            | Terminal Form | 
                                            NO LEAD | 
                                        
                                                                            
                                            | Peak Reflow Temperature (Cel) | 
                                            260 | 
                                        
                                                                            
                                            | Number of Functions | 
                                            2 | 
                                        
                                                                            
                                            | Supply Voltage | 
                                            5V | 
                                        
                                                                            
                                            | Terminal Pitch | 
                                            0.5mm | 
                                        
                                                                            
                                            | Time@Peak Reflow Temperature-Max (s) | 
                                            30 | 
                                        
                                                                            
                                            | Base Part Number | 
                                            74VHC244 | 
                                        
                                                                            
                                            | Pin Count | 
                                            20 | 
                                        
                                                                            
                                            | Output Type | 
                                            3-State | 
                                        
                                                                            
                                            | Operating Supply Voltage | 
                                            5V | 
                                        
                                                                            
                                            | Number of Elements | 
                                            2 | 
                                        
                                                                            
                                            | Polarity | 
                                            Non-Inverting | 
                                        
                                                                            
                                            | Supply Voltage-Min (Vsup) | 
                                            2V | 
                                        
                                                                            
                                            | Number of Ports | 
                                            2 | 
                                        
                                                                            
                                            | Propagation Delay | 
                                            7.5 ns | 
                                        
                                                                            
                                            | Quiescent Current | 
                                            4μA | 
                                        
                                                                            
                                            | Turn On Delay Time | 
                                            15 ns | 
                                        
                                                                            
                                            | Family | 
                                            AHC/VHC/H/U/V | 
                                        
                                                                            
                                            | Logic Function | 
                                            Buffer, Inverting | 
                                        
                                                                            
                                            | Number of Inputs | 
                                            8 | 
                                        
                                                                            
                                            | Current - Output High, Low | 
                                            8mA 8mA | 
                                        
                                                                            
                                            | Logic Type | 
                                            Buffer, Non-Inverting | 
                                        
                                                                            
                                            | Number of Bits per Element | 
                                            4 | 
                                        
                                                                            
                                            | Height Seated (Max) | 
                                            1mm | 
                                        
                                                                            
                                            | RoHS Status | 
                                            ROHS3 Compliant | 
                                        
                                                                            
                                            | Lead Free | 
                                            Lead Free | 
                                        
                                                                                                    
                            
                         
                                                74VHC244BQ,115 Overview
Logical driver uses a neat 20-VFQFN Exposed Pad package. Tape & Reel (TR) external packaging. Available in Surface Mount. Voltage buffer adopts Buffer, Non-Inverting logic prototype. Buffer IC is fed with a voltage of 2V~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 74VHC series devices. 20 terminations with different functions. Buffer IC reuqires a supply voltage of 5V. This logical driver is a member of the AHC/VHC/H/U/V 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 "74VHC244" for other related electrical components. In quiescent state, the electronic part uses 4μA. To run the part safely and stably in a circuit, 5V recommends users apply 5V on the logical driver. To supply the device, a minimum voltage of 2V is a must. Digital buffer is characterized to have 8 inputs. 
74VHC244BQ,115 Features
74VHC244BQ,115 Applications
There are a lot of Nexperia USA Inc. 74VHC244BQ,115 Buffers & Transceivers applications. 
- Clock radio
 - 1x/2x Fiber Channel
 - Mainframes, workstations or storage devices
 - Wireless showroom
 - Satellite communications networks
 - Laser diode bonding
 - Radio transmission
 - Long-distance fiber optic network applications
 - Ethernet circuitry
 - Tuner