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MM74HCT640J Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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MM74HCT640J Datasheet(HTML) 3 Page - National Semiconductor (TI) |
3 / 4 page AC Electrical Characteristics MM54HCT640MM74HCT640 VCCe50V g 10% tretfe6 ns (unless otherwise specified) TAe25 C 74HCT 54HCT Symbol Parameter Conditions TAeb40 to 85 CTAeb55 to 125 C Units Typ Guaranteed Limits tPHL tPLH Maximum Output CLe50 pF 17 23 29 34 ns Propagation Delay CLe150 pF 24 30 38 45 ns tPZH tPZL Maximum Output RLe1kX CLe50 pF 23 30 38 45 ns Enable Time tPHZ tPLZ Maximum Output RLe1kX 21 30 38 45 ns Disable Time CLe50 pF tTHL tTLH Maximum Output CLe50 pF 8 12 15 18 ns Rise and Fall Time CIN Maximum Input 10 15 15 15 pF Capacitance COUT Maximum Output 20 25 25 25 pF Input Capacitance CPD Power Dissipation (per output) GeVCC 7pF Capacitance (Note 5) GeGND 100 pF AC Electrical Characteristics MM54HCT643MM74HCT643 VCCe50V tretfe6 ns TAe25 C (unless otherwise specified) Symbol Parameter Conditions Typ Guaranteed Units Limits tPHL tPLH Maximum Output CLe45 pF 16 20 ns Propagation Delay tPZL tPZH Maximum Output CLe45 pF 29 40 ns Enable Time RLe1kX tPLZ tPHZ Maximum Output CLe5pF 20 25 ns Disable Time RLe1kX AC Electrical Characteristics MM54HCT643MM74HCT643 VCCe50V g 10% tretfe6 ns (unless otherwise specified) TAe25 C 74HCT 54HCT Symbol Parameter Conditions TAeb40 to 85 CTAeb55 to 125 C Units Typ Guaranteed Limits tPHL tPLH Maximum Output CLe50 pF 17 23 29 34 ns Propagation Delay CLe150 pF 24 30 38 45 ns tPZH tPZL Maximum Output RLe1kX CLe50 pF 23 30 38 45 ns Enable Time tPHZ tPLZ Maximum Output RLe1kX 21 30 38 45 ns Disable Time CLe50 pF ns tTHL tTLH Maximum Output CLe50 pF 8 12 15 18 ns Rise and Fall Time CIN Maximum Input 10 15 15 15 pF Capacitance COUT Maximum Output 20 25 25 25 pF Input Capacitance CPD Power Dissipation (per output) GeVCC 7pF Capacitance (Note 5) GeGND 100 pF Note 5 CPD determines the no load power consumption PDeCPDVCC2f aICCVCC The no load dynamic current consumption ISeCPDVCC aICC 3 |
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