Quad OR gate with Schmitt-trigger inputs — rated for the automotive temperature span
The Texas Instruments SN74HCS32QDRQ1 is a quad 2-input OR gate from the 74HCS logic family, featuring Schmitt-trigger inputs on all four gates. It operates from a 2V to 6V supply and is specified across the full automotive temperature range of -40°C to 125°C. The part is AEC-Q100 qualified, making it suitable for under-hood and chassis-domain electronics where noise on the input lines is a concern — the Schmitt-trigger hysteresis cleans up slow or noisy edges without external conditioning. Outputs source and sink 7.8 mA each, enough to drive a downstream gate input or a small LED indicator directly. The 14-SOIC package (3.90 mm body width) is a standard logic footprint that fits existing PCB layouts without a board spin.
Lifecycle and sourcing
The SN74HCS32QDRQ1 is listed as Active with ROHS3 compliance. It is a current-production part from TI's 74HCS automotive logic family, so there is no last-time-buy or obsolescence risk for new designs.