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CD74HC42 Datasheet(PDF) 1 Page - Texas Instruments |
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CD74HC42 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 10 page 1 Data sheet acquired from Harris Semiconductor SCHS133C Features • Buffered Inputs and Outputs • Typical Propagation Delay: 12ns at VCC = 5V, CL = 15pF, TA = 25 oC • 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 Description 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). Pinout CD54HC42 (CERDIP) CD74HC42 (PDIP, SOIC) CD74HCT42 (PDIP) TOP VIEW Ordering Information PART NUMBER TEMP. RANGE (oC) PACKAGE CD54HC42F3A -55 to 125 16 Ld CERDIP CD74HC42E -55 to 125 16 Ld PDIP CD74HC42M -55 to 125 16 Ld SOIC CD74HCT42E -55 to 125 16 Ld PDIP 14 15 16 9 13 12 11 10 1 2 3 4 5 7 6 8 Y0 Y1 Y2 Y3 Y4 Y5 GND Y6 VCC A1 A2 A3 Y9 Y8 Y7 A0 August 1997 - Revised May 2003 CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. Copyright © 2003 Texas Instruments Incorporated. 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- |
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