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
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.
