| PartNumber | SN74HC688DW | SN74HC688DWE4 | SN74HC688DWG4 |
| Description | Logic Comparators 8bit Identity | Logic Comparators 8-Bit Identity Comparators | Logic Comparators 8B Identity Magnitude Comparator |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Logic Comparators | Logic Comparators | Logic Comparators |
| RoHS | Y | Y | Y |
| Comparator Type | Identity | Identity | Identity |
| Number of Bits | 8 bit | 8 bit | 8 bit |
| Logic Function | A = B | A = B | A = B |
| Output Type | Active Low | Active Low | Active Low |
| Supply Voltage Max | 6 V | 6 V | 6 V |
| Supply Voltage Min | 2 V | 2 V | 2 V |
| Supply Current Max | 80 uA | - | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Propagation Delay Time | 210 ns, 42 ns, 36 ns | 210 ns, 42 ns, 36 ns | 210 ns, 42 ns, 36 ns |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOIC-20 | SOIC-20 | SOIC-20 |
| Packaging | Tube | Tube | Tube |
| Product | Digital Comparators | Digital Comparators | Digital Comparators |
| Series | SN74HC688 | SN74HC688 | SN74HC688 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Channels | 1 Channel | - | - |
| Shutdown | No Shutdown | No Shutdown | No Shutdown |
| High Level Output Current | 25 mA | - | - |
| Low Level Output Current | 25 mA | - | - |
| Operating Supply Current | 4 mA | - | - |
| Operating Supply Voltage | 2 V to 6 V | 2 V to 6 V | 2 V to 6 V |
| Polarity | Inverting | Inverting | Inverting |
| Product Type | Logic Comparators | Logic Comparators | Logic Comparators |
| Factory Pack Quantity | 25 | 25 | 25 |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.017662 oz | 0.017662 oz | 0.017662 oz |