28 ns propagation delay — what it means for the bus
Maximum propagation delay is 28 ns at 4.5V and 50 pF load. The 4 mA symmetric output drive is standard for HCT.
AEC-Q100 qualification and the Q100 suffix
The Q100 suffix signals full AEC-Q100 stress qualification — temperature cycling, high-temperature operating life, ESD, and latch-up testing per the automotive-grade standard. This is the part you specify when the customer's PPAP package demands AEC-Q100 line items, or when the board sits in an under-hood or engine-bay environment where the -40°C to 125°C range is a hard requirement, not a nice-to-have. The non-Q100 part shares the same silicon and footprint but lacks the qualification paperwork; swapping one for the other on an automotive BOM risks a quality audit failure.
