| PartNumber | CD74HCT688E | CD74HCT688EE4 | CD74HCT688EG4 |
| Description | Logic Comparators 8-Bit Magnitude | Logic Comparators High Speed CMOS 8-Bit Magnitude | IC COMPARATOR IDENTITY 8B 20DIP |
| Manufacturer | Texas Instruments | Texas Instruments | - |
| Product Category | Logic Comparators | Logic Comparators | - |
| RoHS | Y | Y | - |
| Comparator Type | Magnitude | Magnitude | - |
| Number of Bits | 8 bit | 8 bit | - |
| Logic Function | A = B | A = B | - |
| Output Type | Active Low | Active Low | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 4.5 V | 4.5 V | - |
| Supply Current Max | 80 uA | - | - |
| Minimum Operating Temperature | - 55 C | - 55 C | - |
| Maximum Operating Temperature | + 125 C | + 125 C | - |
| Propagation Delay Time | 34 ns | 34 ns | - |
| Mounting Style | Through Hole | Through Hole | - |
| Package / Case | PDIP-20 | PDIP-20 | - |
| Packaging | Tube | Tube | - |
| Product | Digital Comparators | Digital Comparators | - |
| Series | CD74HCT688 | CD74HCT688 | - |
| Brand | Texas Instruments | Texas Instruments | - |
| Number of Channels | 1 Channel | - | - |
| Shutdown | No Shutdown | No Shutdown | - |
| Ib Input Bias Current | 0.008 mA | 0.008 mA | - |
| Operating Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | - |
| Polarity | Inverting | Inverting | - |
| Product Type | Logic Comparators | Logic Comparators | - |
| Factory Pack Quantity | 20 | 20 | - |
| Subcategory | Logic ICs | Logic ICs | - |
| Unit Weight | 0.042297 oz | 0.042297 oz | - |