CD74HCT42

Data sheet acquired from Harris Semiconductor SCHS133C August 1997 - Revised May 2003 CD54HC42, CD74HC42, CD74HCT42 High-Speed CMOS Logic BCD-to-Decimal Decoders (1 of 10) [ /Title (CD74H C42, CD74H CT42) /Subject (High Speed CMOS Logic BCD To Deci- Features Description Buffered Inputs and Outputs Typical Propagation Delay: CL = 15pF, TA = 25oC 12ns at VCC = 5V, Fanout (Over Temperature Range) - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads Wide Operating Temperature Range . . . -55oC to 125oC The ’HC42 and CD74HCT42 BCD-to-Decimal Decoders utilize silicon-gate CMOS technology to achieve operating speeds similar to LSTTL decoders with the low power consumption of standard CMOS integrated circuits. These devices have the capability of driving 10 LSTLL loads and are compatible with the standard LS logic family. One of ten outputs (low on select) is selected in accordance with the BCD input. Non-valid BCD inputs result in none of the outputs being selected (all outputs are high). Balanced Propagation Delay and Transition Times Significant Power Reduction Compared to LSTTL Logic ICs Ordering Information PART NUMBER TEMP. RANGE (oC) PACKAGE HC Types - 2V to 6V Operation - High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V HCT Types - 4.5V to 5.5V Operation - Direct LSTTL Input Logic Compatibility, VIL= 0.8V (Max), VIH = 2V (Min) - CMOS Input Compatibility, Il...