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CD74HCT244E Datasheet(PDF) 5 Page - Texas Instruments |
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CD74HCT244E Datasheet(HTML) 5 Page - Texas Instruments |
5 / 8 page 5 Switching Specifications CL = 50pF, Input tr, tf = 6ns PARAMETER SYMBOL TEST CONDI- TIONS VCC (V) 25oC -40oC TO 85oC -55oC TO 125oC UNITS MIN TYP MAX MIN TYP MAX MIN TYP MAX HC TYPES Propagation Delay tPLH, tPHL CL = 50pF Data to Outputs HC240 2 - - 100 - - 125 - - 150 ns 4.5 - - 20 - - 25 - - 30 ns CL = 15pF 5 - 8 - - - ---- ns CL = 50pF 6 - - 17 - - 21 - - 26 ns Data to Outputs HC241 tPLH, tPHL CL = 50pF 2 - - 110 - - 140 - - 165 ns 4.5 - - 22 - - 28 - - 33 ns CL = 15pF 5 - 9 - - - ---- ns CL = 50pF 6 - - 19 - - 24 - - 28 ns Data to Outputs HC244 tPLH, tPHL CL = 50pF 2 - - 110 - - 140 - - 165 ns 4.5 - - 22 - - 28 - - 33 ns CL = 15pF 5 - 9 - - - ---- ns CL = 50pF 6 - - 19 - - 24 - - 28 ns Output Enable and Disable Time tTHL, tTLH CL = 50pF 2 - - 150 - - 190 - - 225 ns 4.5 - - 30 - - 38 - - 45 ns 5 - 12 ------- ns 6 - -26- -33- -38 ns Output Transition Time tTLH, tTHL CL = 50pF 2 - - 60 - - 75 - - 90 ns 4.5 - - 12 - - 15 - - 18 ns 6 - -10- -13- -15 ns Input Capacitance CI CL = 50pF - 10 - 10 - - 10 - - 10 pF Three-State Output Capacitance CO CL = 50pF - - - 20 - - 20 - - 20 pF Power Dissipation Capacitance (Notes 5, 6) CPD CL = 15pF HC240 5 - 38 - - - ---- pF HC241 5 - 34 - - - ---- pF HC244 5 - 46 - - - ---- pF HCT TYPES Propagation Delay Data to Outputs HCT240 tPHL, tPLH CL = 50pF 4.5 - - 22 - - 28 - - 33 ns CL = 15pF 5 - 9 - - - ---- ns Data to Outputs HCT241 tPHL, tPLH CL = 50pF 4.5 - - 25 - - 31 - - 38 ns CL = 15pF 5 - 10 - - - ---- ns Data to Outputs HCT244 tPHL, tPLH CL = 50pF 4.5 - - 25 - - 31 - - 38 ns CL = 15pF 5 - 10 - - - ---- ns CD74HC240, CD74HCT240, CD74HC241, CD74HCT241, CD74HC244, CD74HCT244 |
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