| PartNumber | MM74HC688MTC | MM74HC688MTCX | MM74HC688N |
| Description | Logic Comparators 8-Bit Mag Comparator | IC COMPARATOR MAGNITUDE 20TSSOP | IC COMPARATOR MAGNITUDE 8B 20DIP |
| Manufacturer | ON Semiconductor | Fairchild Semiconductor | Fairchild Semiconductor |
| Product Category | Logic Comparators | Logic - Comparators | Logic - Comparators |
| RoHS | Y | - | - |
| Comparator Type | Identity | - | - |
| Number of Bits | 8 bit | 8 | 8 |
| Logic Function | A = B | - | - |
| Output Type | Active Low | - | - |
| Supply Voltage Max | 6 V | - | - |
| Supply Voltage Min | 2 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Propagation Delay Time | 175 ns, 35 ns, 30 ns | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | TSSOP-20 | - | - |
| Packaging | Tube | Tape & Reel (TR) | Tube |
| Product | Digital Comparators | - | - |
| Brand | ON Semiconductor / Fairchild | - | - |
| Input Voltage Range | - 1.5 V to + 1.5 V | - | - |
| Ib Input Bias Current | 0.008 mA | - | - |
| Operating Supply Voltage | 2.5 V, 3.3 V, 5 V | - | - |
| Polarity | Inverting | - | - |
| Product Type | Logic Comparators | - | - |
| Factory Pack Quantity | 73 | - | - |
| Subcategory | Logic ICs | - | - |
| Unit Weight | 0.006737 oz | - | - |
| Series | - | 74HC | 74HC |
| Type | - | Identity Comparator | Identity Comparator |
| Package Case | - | 20-TSSOP (0.173", 4.40mm Width) | 20-DIP (0.300", 7.62mm) |
| Operating Temperature | - | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | - | Surface Mount | Through Hole |
| Voltage Supply | - | 2 V ~ 6 V | 2 V ~ 6 V |
| Output | - | Active Low | Active Low |
| Output Function | - | A=B | A=B |
| Current Output High Low | - | 5.2mA, 5.2mA | 5.2mA, 5.2mA |
| Max Propagation Delay V Max CL | - | 30ns @ 6V, 50pF | 30ns @ 6V, 50pF |
| Current Quiescent | - | 8μA | 8μA |