| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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63 pcs
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63 pcs | On Request | 1 | On Request | On Request | 04+28 | On Request | On Request |
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The 74HCT688D from NXP is a high-speed Si-gate CMOS 8-bit magnitude comparator. It is pin-compatible with low-power Schottky TTL (LSTTL) and specified in compliance with JEDEC standard no. 7A. This device performs the comparison of two 8-bit binary or BCD words, with its output indicating when P = Q.
Key electrical characteristics include a typical propagation delay of 7 ns for Pn, Qn to P=Q, and 8 ns for the enable input (E) to P=Q, both measured at 5V supply and 15pF load. Input capacitance is typically 3.5 pF, and power dissipation capacitance is 30 pF per package.
The 74HCT688D is suitable for applications requiring binary or BCD word comparison. It operates with standard output capability and falls under the MSI ICC category, indicating its suitability for medium-scale integration applications.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.50 | $0.50 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The typical propagation delay from Pn, Qn to P=Q is 7 ns, and from the enable input (E) to P=Q is 8 ns, both measured at 5V supply and 15pF load.
The input capacitance is typically 3.5 pF.
The power dissipation capacitance per package is typically 30 pF.
The RoHS status is RoHS3 Compliant.
The Moisture Sensitivity Level is 1 Unlimited.
The REACH status is REACH Unaffected.