Automotive-grade OR gate for mixed-voltage signal chains
The SN74AHC32QDRG4Q1: AEC-Q100 Grade 1 qualification means this part has passed the full automotive reliability stress battery — temperature cycling, high-temperature operating life, and ESD robustness — so it slots into a PPAP-compliant BOM without a separate qualification run.
Supply voltage and propagation delay — the fit decision
Maximum propagation delay is 7.5ns at 5V with a 50pF load, which sets the data-rate ceiling for the OR-gate path. At 3.3V the delay stretches; budget the worst-case timing into the setup-and-hold margin of the receiving flip-flop or latch. Quiescent current sits at 2 µA maximum, so the static power contribution is negligible in always-on automotive modules that draw tens of milliamps from the battery.
Package and board-fit — 14-SOIC standard land pattern
Housed in a 14-SOIC package with 0.154-inch body width and 1.27mm pin pitch, the SN74AHC32QDRG4Q1 drops onto any standard SOIC-14 land pattern — no footprint adjustment needed when replacing a generic 74AHC32 in the same package.
Active lifecycle — no last-time-buy pressure
ROHS3 compliant per the manufacturer, which clears the EU material restriction gate for automotive tier-1 shipments without an exemption letter.