CD54HC251, CD74HC251, CD54HCT251, CD74HCT251
SCHS169D – NOVEMBER 1998 – REVISED MARCH 2022
CDx4HC251, CDx4HCT251 High-Speed
CMOS Logic 8-Input Multiplexer, Three-State
1 Features
• Selects one of eight binary data inputs • Three-state output capability • True and complement outputs • Typical (data to output) propagation delay of 14 ns
at VCC = 5 V, CL = 15 pF, TA = 25 ℃ • Fanout (over temperature range)
– Standard outputs : 10 LSTTL loads – Bus driver outputs : 15 LSTTL loads • Wide operating temperature range : – 55 ℃ to 125 ℃ • Balanced propagation delay and transition times • Significant power reduction compared to LSTTL logic ICs • Alternate source is Philips • HC types – 2 V to 6 V ope...