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CD74HCT157M Arkusz danych(PDF) 1 Page - Texas Instruments |
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CD74HCT157M Arkusz danych(HTML) 1 Page - Texas Instruments |
1 / 8 page 1 Data sheet acquired from Harris Semiconductor SCHS153 Features • Common 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 . . . -55oC to 125oC • Balanced Propagation Delay and Transition Times • Significant Power Reduction Compared to LSTTL Logic ICs • 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 ≤ 1µA at VOL, VOH Pinout CD74HC157, CD74HCT157, CD74HC158, CD74HCT158 (PDIP, SOIC) TOP VIEW 14 15 16 9 13 12 11 10 1 2 3 4 5 7 6 8 S 1I0 1I1 1Y 2I0 2I1 GND 2Y VCC 4I0 4I1 4Y 3I0 3I1 3Y E September 1997 CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. Copyright © Harris Corporation 1997 File Number 1642.2 CD74HC157, CD74HCT157, CD74HC158, CD74HCT158 High Speed CMOS Logic Quad 2-Input Multiplexers [ /Title (CD74H C157, CD74H CT157, CD74H C158, CD74H CT158) /Subject (High Speed |
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