Quad 2-input NOR gate for 5V TTL-compatible logic
The Texas Instruments CD74HCT02M96 is a 74HCT-series quad 2-input NOR gate in a 14-SOIC surface-mount package. It operates from a 4.5V to 5.5V supply and is specified over the full military temperature range of -55°C to 125°C. Each of the four gates can sink or source 4mA, with a typical quiescent current of just 2µA. Propagation delay is 21ns maximum at 4.5V with a 50pF load, making it a drop-in replacement for legacy 74LS/74S TTL logic in designs that need CMOS power efficiency with TTL-compatible input thresholds (0.8V low, 2V high).
Active production, ROHS3, and full temperature range
It is ROHS3 compliant, so it meets current European and global environmental requirements for new designs. The -55°C to 125°C operating range covers avionics, downhole instrumentation, and outdoor industrial control where the ambient temperature can swing well beyond commercial or even industrial limits. The 14-SOIC package is widely second-sourced; if you need a dual-sourcing option, the pin-compatible CD74HCT132M96 offers the same footprint but with Schmitt-trigger inputs and a slightly slower 33ns propagation delay at 4.5V.
What the 21ns propagation delay means for your bus timing
At 4.5V and 50pF load, the maximum propagation delay is 21ns. In a 5V system clocked at 25 MHz (40ns period), that leaves 19ns for setup and hold on the receiving flip-flop after the NOR gate output settles. That is comfortable for most glue-logic applications, but if you are chaining multiple gates in a critical path, budget the cumulative delay. The 4mA output drive is enough for one or two standard CMOS loads but will struggle with heavily loaded buses or long traces without a buffer.