BUY 74HC21 https://www.utsource.net/itm/p/344422.html
74HC/HCT21; Dual 4-input And Gate;; Package: SOT108-1 (SO14), SOT27-1 (DIP14), SOT337-1 (SSOP14)
Description: The 74HC21 is a high-speed CMOS logic IC containing two independent 2-input AND gates.
Features:
- High-speed operation: tPD = 10 ns (typ.) at VCC = 5 V
- Low power dissipation: ICC = 2 μA (max) at Ta = 25°C
- Low input current: 1 μA (max)
- High noise immunity: VNIH = VNIL = 28% VCC (min)
Applications:
- Data transmission
- Signal processing
- Logic gating
- Clock and timing circuits
(For reference only)