BUY DM74LS221N https://www.utsource.net/itm/p/11223663.html

Description: Quad 2-Input Exclusive-OR Gate Features: Inputs Include Clamp Diodes Outputs Source/Sink 24 mA Balanced Propagation Delays Common Reset Fanout of 10 LSTTL Loads Low Power Consumption, 80-μA Max ICC Typical tpd = 10 ns ±4-mA Output Drive at 5 V Low Input Current of 1 μA Max 100% Tested for Quiescent Current at 20 V Meets All Requirements of JEDEC Tentative Standard No. 13B, “Standard Specifications for Description of ‘B’ Series CMOS Devices” ESD Protection Exceeds 2000V Per MIL-STD-883, Method 3015; Exceeds 200V Using Machine Model (C = 200 pF, R = 0) Applications: High-Speed Data Transmission High-Speed Data Processing High-Speed Logic Gates High-Speed Data Comparisons High-Speed Data Storage (For reference only)