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HC123 Datasheet(PDF) 6 Page - Texas Instruments |
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HC123 Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 8 page  6 Switching Specifications CL = 50pF, Input tr, tf = 6ns, RX = 10KΩ, CX = 0 PARAMETER SYMBOL TEST CONDITIONS VCC (V) 25oC -40oC TO 85oC -55oC TO 125oC UNITS MIN TYP MAX MIN MAX MIN MAX HC TYPES Trigger Propagation Delay tPHL CL = 50pF A, B, R to Q 2 - - 300 - 375 - 450 ns 4.5 - - 60 - 75 - 90 ns CL = 15pF 5 - 25 - - - - - ns CL = 50pF 6 - - 51 - 64 - 76 ns A, B, R to QtPHL CL = 50pF 2 - - 320 - 400 - 480 ns 4.5 - - 64 - 80 - 96 ns CL = 15pF 5 - 26 - - - - - ns CL = 50pF 6 - - 54 - 68 - 82 ns Reset Propagation Delay tPHL, tPLH CL = 50pF 2 - - 215 - 270 - 325 ns R to Q or Q 4.5 - - 43 - 54 - 65 ns 6 - - 37 - 46 - 55 ns Output Transition Time tTHL, tTLH CL = 50pF 2 - - 75 - 95 - 110 ns 4.5 - - 15 - 19 - 22 ns 6 - - 13 - 16 - 19 ns Output Pulse Width - - 5 RX = 10KΩ, CX = 10pF - 45 - - - - - µs Pulse Width Match Between Circuits In the Same Package - - 5 RX = 10KΩ, CX = 10pF - ±2- - - - - % Power Dissipation Capacitance CPD CL = 15pF 5 - - - - - - - pF Input Capacitance CIN CL = 50pF - 10 - 10 - 10 - 10 pF NOTES: 5. CPD is used to determine the dynamic power consumption, per multivibrator. 6. PD =(CPD +CX)VCC 2 f i ∑(CL VCC 2 f O) where fi = input frequency, fO = Output Frequency, CL = Output Load Capacitance, CX = External Capacitance VCC = Supply Voltage assuming fi « I t W ------ CD74HC123, CD74HCT123, CD74HC423, CD74HCT423 |
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