54S140FM — TTL NAND Gate in Bulk Packaging
The 54S140FM is a TTL NAND gate from the 54S series. It implements the basic NAND logic function and is intended for through-hole board assembly in industrial control, test equipment, and legacy system repairs where TTL logic levels (5 V nominal) are still in use.
It is marked RoHS non-compliant, so it is not suitable for lead-free solder processes without an exemption — verify your assembly line's exemption status before committing the BOM line.
