M74HC688B1R
IC COMPARATOR IDENTITY 8B 20DIPManufacturer: STMicroelectronics
Categories: Comparators
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STMicroelectronics 74HC series identity comparator, part number M74HC688B1R, is an 8-bit magnitude comparator designed for high-speed digital applications. This device features active-low outputs that indicate when all corresponding input bits are equal (A=B). With a wide operating voltage range of 2V to 6V and a low quiescent current of 4 µA, it is suitable for power-sensitive designs. The M74HC688B1R offers a maximum propagation delay of 29ns at 6V and 50pF, ensuring efficient signal processing. Its 20-DIP (0.300") through-hole mounting package facilitates straightforward integration into existing PCB layouts. Typical applications include data selection, address decoding, and system control in industrial automation, telecommunications, and consumer electronics. The device supports output currents of 5.2mA for both high and low states, and operates across an extended temperature range of -55°C to 125°C.
Additional Information
Series: 74HCRoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDatasheet:Download Free CAD Model:
Technical Details:
| Packaging | Tube |
| Package / Case | 20-DIP (0.300"", 7.62mm) |
| Mounting Type | Through Hole |
| Output | Active Low |
| Type | Identity Comparator |
| Operating Temperature | -55°C ~ 125°C |
| Voltage - Supply | 2V ~ 6V |
| Current - Quiescent (Iq) | 4 µA |
| Current - Output High, Low | 5.2mA, 5.2mA |
| Supplier Device Package | 20-DIP |
| Max Propagation Delay @ V, Max CL | 29ns @ 6V, 50pF |
| Output Function | A=B |
| Number of Bits | 8 |
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