Quad 2-input AND gate in 14-SOIC
The SN74AHCT08D is a quad 2-input AND gate from Texas Instruments' 74AHCT series, packaged in a 14-SOIC (0.154", 3.90mm width) surface-mount package. It integrates four independent AND gates, each with two inputs, on a single monolithic IC.
Propagation delay and output drive
Maximum propagation delay is 7.9ns at 5V with a 50pF load — this sets the data-rate ceiling through the gate. The output stage sources and sinks 8mA (symmetrical drive), which is enough to fan out to four or five standard CMOS loads without buffering. Input logic thresholds are 0.8V low and 2V high, compatible with 5V TTL levels. The 2 µA max quiescent current keeps the static power draw negligible in battery-backed or always-on logic sections.