54HCT00 Datasheet, Texas Instruments

* LSTTL input logic compatible
  – VIL(max) = 0.8 V, VIH(min) = 2 V
* CMOS input logic compatible
  – II ≤ 1 µA at VOL, VOH
* Buff.

* Alarm / tamper detect circuit
* S-R latch 1A 1 1B 2 1Y 3 2A 4 2B 5 2Y 6 GND 7 3 Description Thi.