74S64DC, AND-OR-INVERT Gate, 74S series, Active lifecycle, RoHS non-compliant, Bulk package.
| Parameter | Value |
|---|---|
| Series | * |
| Package | Bulk |
Expert opinion by Rework Rosie · Board Rework & Repair Technician
The 74S64DC is a single AND-OR-INVERT gate. It performs the logic function (A·B)+(C·D) inverted.
It is marked RoHS non-compliant — the leads and internal terminations contain lead (Pb). That rules it out for any assembly line that requires full RoHS conformance.
The 74S64DC is an AND-OR-INVERT gate. It implements the logic function (A·B)+(C·D) inverted — a sum-of-products expression in a single 14-pin package, used for gating, decoding, and bus interface logic.
Both parts perform the same AND-OR-INVERT logic function, but the 74S64DC is from the faster Schottky (74S) family, while the 74LS64 is from the low-power Schottky (74LS) family. The 74S variant offers shorter propagation delays at the cost of higher power consumption. They are not pin-compatible substitutes without checking the specific package and datasheet.