CD74HC541E

CD54HC540, CD74HC540, CD54HC541, CD74HC541, CD74HCT540, CD54HCT541, CD74HCT541 SCHS189E – JANUARY 1998 – REVISED OCTOBER 2022 CDx4HC(T)541 High-Speed CMOS Logic Octal Buffer and Line Drivers Three-State 1 Features ’HC540, CD74HCT540: inverting ’HC541, ’HCT541: non-inverting Buffered inputs Three-state outputs Bus line driving capability Typical propagation delay = 9 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 HC types – 2 V to 6 V operation – High noise immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5 V HCT types – 4.5 V to 5.5 V operation – Direct LSTTL input logic compatibility, VIL = 0.8 V (max), VIH = 2 V (min) – CMOS input compatibility, II ≤ 1 μA at VOL, VOH 2 Description The ’HC540 and CD74HCT540 are Inverting Octal Buffers and Line Drivers with Three-State Outputs and the capability to drive 15 LSTTL loads. The ’HC541 and ’HCT541 are Noninverting Octal Buffers and Line Drivers with Three-State Outputs that can drive 15 LSTTL loads. The Output Enables (OE1) and (OE2) control the Three-State Outputs. If either OE1 or OE2 is HIGH the outputs will be in the high impedance state. For data output OE1 and OE2 both must be LOW. Package Information PART NUMBER PACKAGE(1) BODY SIZE (NOM) CD74HC540M SOI...