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Semiconductor
September 1997
CD74HC393, CD74HCT393
High Speed CMOS Logic Dual 4 -Stage Binary Counter
Features
Description
• Fully Static Operation
• Buffered Inputs
• Common Reset
• Negative-Edge Clocking
• TTAyp=ic2a5lofCMAX = 60 MHz at VCC = 5V, CL = 15pF, • 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.