74HCT158 Datasheet | Texas Instruments

Features Description - mon Select Inputs - Separate Enable Inputs - Buffered inputs and Outputs - Fanout (Over Temperature Range) - Standard Outputs - - - 10 LSTTL Loads - Bus Driver Outputs - - . . . 15 LSTTL Loads - Wide Operating Temperature Range . . . -55o C to 125o C - Balanced Propagation Delay and Transition Times - Significant Power Reduction pared to LSTTL Logic ICs The ’HC157, ’HCT157, ’HC158, and ’HCT158 are quad 2input multiplexers which select four bits of data from two sources under the control of a mon Select input (S). The Enable input (E) is active Low. When (E) is High, all of the outputs in the 158, the inverting type, (1Y-4Y) are forced High and in the 157, the non-inverting type, all of the outputs (1Y-4Y) are forced Low, regardless of all other input conditions. Moving data from two groups of registers to four mon output buses is a mon use of these devices. The state of the Select input determines the particular register from which the data es. They can also be used as function generators. - 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 patibility, VIL= 0.8V (Max), VIH = 2V (Min) - CMOS Input patibility, Il ≤ 1µA at VOL, VOH Ordering Information PART NUMBER CD54HC157F3A CD54HCT157F3A CD54HCT158F3A CD74HC157E TEMP. RANGE (o C) -55 to 125 -55 to 125 -55 to 125 -55 to 125 PACKAGE 16 Ld CERDIP 16 Ld CERDIP 16 Ld CERDIP 16 Ld PDIP Pinout CD54HC157, CD54HCT157, CD54HC158, CD54HCT158 (CERDIP) CD74HC157, CD74HCT157, CD74HC158 (PDIP, SOIC) CD74HCT158 (PDIP) TOP VIEW S1 1I0 2 1I1 3 1Y 4 2I0 5 2I1 6 2Y 7 GND 8 16 VCC 15 E 14 4I0 13 4I1 12 4Y 11 3I0 10 3I1 9 3Y CD74HC157M -55 to 125 16 Ld SOIC CD74HC157MT -55 to 125 16 Ld SOIC CD74HC157M96...