CD54HCT251 Datasheet | Texas Instruments

Features - Selects one of eight binary data inputs - Three-state output capability - True and plement outputs - Typical (data to output) propagation delay of 14 ns at VCC = 5 V, CL = 15 p F, 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 pared to LSTTL logic ICs - Alternate source is Philips - 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 patibility, VIL = 0.8 V (Max), VIH = 2 V (Min) - CMOS input patibility, II ≤ 1 μA at VOL, VOH S0 S1 S2 2 Description The ’HC251 and ’HCT251 are 8-channel digital multiplexers with three-state outputs, fabricated with high-speed silicongate CMOS technology. Together with the low power consumption of standard CMOS integrated circuits, they possess the ability to drive 10 LSTTL loads. The three-state feature makes them ideally suited for interfacing with bus lines in a busoriented system. PART NUMBER CD54HC251F CD54HCT251F CD74HC251M CD74HCT251M CD74HC251E CD74HCT251E Device Information PACKAGE(1) BODY SIZE (NOM) CDIP (16) 24.38 mm × 6.92 mm CDIP (16) 24.38 mm × 6.92 mm SOIC (16) 9.90 mm × 3.90 mm SOIC (16) 9.90 mm × 3.90 mm PDIP...