| Parameters | 
                                
                                                                                                            
                                            | Factory Lead Time | 
                                            6 Weeks | 
                                        
                                                                            
                                            | Lifecycle Status | 
                                            ACTIVE (Last Updated: 3 days ago) | 
                                        
                                                                            
                                            | Contact Plating | 
                                            Gold | 
                                        
                                                                            
                                            | Mount | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Mounting Type | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Package / Case | 
                                            20-SOIC (0.209, 5.30mm Width) | 
                                        
                                                                            
                                            | Number of Pins | 
                                            20 | 
                                        
                                                                            
                                            | Weight | 
                                            266.712314mg | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -55°C~125°C | 
                                        
                                                                            
                                            | Packaging | 
                                            Tape & Reel (TR) | 
                                        
                                                                            
                                            | Series | 
                                            74HC | 
                                        
                                                                            
                                            | JESD-609 Code | 
                                            e4 | 
                                        
                                                                            
                                            | Pbfree Code | 
                                            yes | 
                                        
                                                                            
                                            | Part Status | 
                                            Active | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            1 (Unlimited) | 
                                        
                                                                            
                                            | Number of Terminations | 
                                            20 | 
                                        
                                                                            
                                            | ECCN Code | 
                                            EAR99 | 
                                        
                                                                            
                                            | Type | 
                                            Identity Comparator | 
                                        
                                                                            
                                            | Additional Feature | 
                                            CASCADABLE | 
                                        
                                                                            
                                            | Subcategory | 
                                            Arithmetic Circuits | 
                                        
                                                                            
                                            | Packing Method | 
                                            TR | 
                                        
                                                                            
                                            | Technology | 
                                            CMOS | 
                                        
                                                                            
                                            | Voltage - Supply | 
                                            2V~6V | 
                                        
                                                                            
                                            | Terminal Position | 
                                            DUAL | 
                                        
                                                                            
                                            | Terminal Form | 
                                            GULL WING | 
                                        
                                                                            
                                            | Peak Reflow Temperature (Cel) | 
                                            260 | 
                                        
                                                                            
                                            | Number of Functions | 
                                            1 | 
                                        
                                                                            
                                            | Supply Voltage | 
                                            4.5V | 
                                        
                                                                            
                                            | Terminal Pitch | 
                                            1.27mm | 
                                        
                                                                            
                                            | Time@Peak Reflow Temperature-Max (s) | 
                                            NOT SPECIFIED | 
                                        
                                                                            
                                            | Base Part Number | 
                                            74HC688 | 
                                        
                                                                            
                                            | Output | 
                                            Active Low | 
                                        
                                                                            
                                            | Pin Count | 
                                            20 | 
                                        
                                                                            
                                            | Qualification Status | 
                                            Not Qualified | 
                                        
                                                                            
                                            | Polarity | 
                                            Inverting | 
                                        
                                                                            
                                            | Supply Voltage-Max (Vsup) | 
                                            6V | 
                                        
                                                                            
                                            | Power Supplies | 
                                            2/6V | 
                                        
                                                                            
                                            | Supply Voltage-Min (Vsup) | 
                                            2V | 
                                        
                                                                            
                                            | Load Capacitance | 
                                            50pF | 
                                        
                                                                            
                                            | Max Supply Current | 
                                            8μA | 
                                        
                                                                            
                                            | Number of Bits | 
                                            8 | 
                                        
                                                                            
                                            | Propagation Delay | 
                                            29 ns | 
                                        
                                                                            
                                            | Quiescent Current | 
                                            8μA | 
                                        
                                                                            
                                            | Turn On Delay Time | 
                                            29 ns | 
                                        
                                                                            
                                            | Family | 
                                            HC/UH | 
                                        
                                                                            
                                            | Current - Output High, Low | 
                                            5.2mA 5.2mA | 
                                        
                                                                            
                                            | Max I(ol) | 
                                            0.0052 A | 
                                        
                                                                            
                                            | Max Propagation Delay @ V, Max CL | 
                                            29ns @ 6V, 50pF | 
                                        
                                                                            
                                            | Prop. Delay@Nom-Sup | 
                                            36 ns | 
                                        
                                                                            
                                            | Output Function | 
                                            A=B | 
                                        
                                                                            
                                            | Height | 
                                            2mm | 
                                        
                                                                            
                                            | Length | 
                                            12.6mm | 
                                        
                                                                            
                                            | Width | 
                                            5.3mm | 
                                        
                                                                            
                                            | Thickness | 
                                            1.95mm | 
                                        
                                                                            
                                            | RoHS Status | 
                                            ROHS3 Compliant | 
                                        
                                                                            
                                            | Lead Free | 
                                            Lead Free | 
                                        
                                                                                                    
                            
                         
                                                CD74HC688NSR Overview
Tape & Reel (TR)'s materials went into the packaging.Low package costs make the 20-SOIC (0.209, 5.30mm Width) well known in the electronic industry.A 8 Bit electronic part is used to design this part.There is no doubt that the 74HC Series is an excellent value for the money due to its performance-cost ratio.Surface Mount is the way this electronic part is mounted.This electrical device produces Active Low as its output.Devices need a 2V~6V Supply Voltage to function normally.To ensure reliability, it operates at -55°C~125°C Operating Temperature.The Identity Comparator Type qualifies for standard grade applications.As the output current of 5.2mA 5.2mA is high/low, it has maximum design flexibility.Using 20, you can program terminations.In addition, it has 1 functions.Parts related to the Base Part Number can be derived from it.Comparator is powered from a Supply Voltage of  4.5V.With 20 Pin Count, it is equipped with the latest technology.Computers and other communications devices have 20 pins, which are pronged contacts.A Surface Mount-shaped electronic part is mounted here.There is an electronic device in this family called HC/UH.Arithmetic Circuits has it under its Subcategory.2/6V Power Supplies are used to power it.At 6V, the supply voltage reaches its maximum value (Vsup).There should be a higher voltage supply (Vsup) than 2V.There are a few additions, such as CASCADABLE.This device operates at maximum current 8μA.In the absence of external influences, it consumes 8μA mA of quiescent current.Despite TR, the device's reliability makes it a good choice.
CD74HC688NSR Features
20-SOIC (0.209, 5.30mm Width) package
8 Bits
74HC series
20 terminations
1 Functions 
20 pin count
2/6V power supplies
CD74HC688NSR Applications
There are a lot of Texas Instruments CD74HC688NSR  applications of comparators. 
- Servo motor controls
 - Servo Motor Controls
 - Fixed or programmable irequency division
 - Companion Appliceation Nole, ICAN-6374, "Application of the CMOS CD4059A Programmable Divide-by-N Counter in FM and Ctizens Band Transceiver Digital Tuners"
 - “Time out" timer for consume-appication industrial controls
 - Communications digltal frequency synthesizers: VHF, UHF, FM, AM, etc.
 - Process contollenr