| Parameters | 
                                
                                                                                                            
                                            | Factory Lead Time | 
                                            13 Weeks | 
                                        
                                                                            
                                            | Contact Plating | 
                                            Gold | 
                                        
                                                                            
                                            | Mount | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Mounting Type | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Package / Case | 
                                            20-SSOP (0.209, 5.30mm Width) | 
                                        
                                                                            
                                            | Number of Pins | 
                                            20 | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C~125°C | 
                                        
                                                                            
                                            | Packaging | 
                                            Tape & Reel (TR) | 
                                        
                                                                            
                                            | Series | 
                                            74HC | 
                                        
                                                                            
                                            | JESD-609 Code | 
                                            e4 | 
                                        
                                                                            
                                            | Part Status | 
                                            Active | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            1 (Unlimited) | 
                                        
                                                                            
                                            | Number of Terminations | 
                                            20 | 
                                        
                                                                            
                                            | Type | 
                                            Identity Comparator | 
                                        
                                                                            
                                            | Additional Feature | 
                                            CASCADABLE | 
                                        
                                                                            
                                            | Technology | 
                                            CMOS | 
                                        
                                                                            
                                            | Voltage - Supply | 
                                            2V~6V | 
                                        
                                                                            
                                            | Terminal Position | 
                                            DUAL | 
                                        
                                                                            
                                            | Terminal Form | 
                                            GULL WING | 
                                        
                                                                            
                                            | Peak Reflow Temperature (Cel) | 
                                            260 | 
                                        
                                                                            
                                            | Number of Functions | 
                                            1 | 
                                        
                                                                            
                                            | Supply Voltage | 
                                            5V | 
                                        
                                                                            
                                            | Terminal Pitch | 
                                            0.65mm | 
                                        
                                                                            
                                            | Time@Peak Reflow Temperature-Max (s) | 
                                            30 | 
                                        
                                                                            
                                            | Base Part Number | 
                                            74HC688 | 
                                        
                                                                            
                                            | Output | 
                                            Active Low | 
                                        
                                                                            
                                            | Pin Count | 
                                            20 | 
                                        
                                                                            
                                            | Operating Supply Voltage | 
                                            5V | 
                                        
                                                                            
                                            | Polarity | 
                                            Inverting | 
                                        
                                                                            
                                            | Supply Voltage-Max (Vsup) | 
                                            6V | 
                                        
                                                                            
                                            | Supply Voltage-Min (Vsup) | 
                                            2V | 
                                        
                                                                            
                                            | Load Capacitance | 
                                            50pF | 
                                        
                                                                            
                                            | Number of Bits | 
                                            8 | 
                                        
                                                                            
                                            | Propagation Delay | 
                                            255 ns | 
                                        
                                                                            
                                            | Quiescent Current | 
                                            8μA | 
                                        
                                                                            
                                            | Turn On Delay Time | 
                                            255 ns | 
                                        
                                                                            
                                            | Family | 
                                            HC/UH | 
                                        
                                                                            
                                            | Current - Output High, Low | 
                                            5.2mA 5.2mA | 
                                        
                                                                            
                                            | Max Propagation Delay @ V, Max CL | 
                                            29ns @ 6V, 50pF | 
                                        
                                                                            
                                            | Output Function | 
                                            A=B | 
                                        
                                                                            
                                            | Height Seated (Max) | 
                                            2mm | 
                                        
                                                                            
                                            | Length | 
                                            7.2mm | 
                                        
                                                                            
                                            | Width | 
                                            5.3mm | 
                                        
                                                                            
                                            | Radiation Hardening | 
                                            No | 
                                        
                                                                            
                                            | RoHS Status | 
                                            ROHS3 Compliant | 
                                        
                                                                                                    
                            
                         
                                                74HC688DB,118 Overview
Tape & Reel (TR)'s materials are used for the packaging.Known for its low package costs, the 20-SSOP (0.209, 5.30mm Width) is a popular electronic component.8 Bits were used to design this electronic part.The 74HC Series offers an excellent price-performance ratio.Mounted in the way of Surface Mount, this electronic part is mounted in the way of X.Its output is Active Low.2V~6V Supply Voltage provides the device with the necessary stability.To ensure its reliability, it operates at Operating Temperature -40°C~125°C.Application grade Identity Comparator Types are available.5.2mA 5.2mA features a High/Low output current which offers maximum design flexibility.20 is used for terminating programs.The device has 1 functions.The related parts can be found based on the Base Part Number.The supply voltage is 5V, and it is powered by it.There is a 20 Pin Count on it.20 pins are pronged contacts used as part of a signal interface in computers.This electronic part is mounted in the way of  Surface Mount.Electronic devices belonging to the HC/UH family make up this device.As Supply Voltage (Vsup) reaches 6V, it is maximal.Comparator is recommended that the supply voltage (Vsup) be greater than 2V.There are a few additions, such as CASCADABLE.The Supply Voltage should be maintained at  5V.A quiescent current of 8μA is consumed without external influence.
74HC688DB,118 Features
20-SSOP (0.209, 5.30mm Width) package
8 Bits
74HC series
20 terminations
1 Functions 
20 pin count
74HC688DB,118 Applications
There are a lot of Nexperia USA Inc. 74HC688DB,118  applications of comparators. 
- Servo motor controls
 - Fixed or programmable irequency division
 - Communications digltal frequency synthesizers: VHF, UHF, FM, AM, etc.
 - 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
 - Servo Motor Controls
 - Process contollenr