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CD74HCT221 데이터시트(PDF) 7 Page - Texas Instruments |
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CD74HCT221 데이터시트(HTML) 7 Page - Texas Instruments |
7 / 18 page 7 Propagation Delay, R to Q tPLH CL = 50pF 2 - - 160 - 200 - 240 ns 4.5 - - 32 - 40 - 48 ns 6 - - 27 - 34 - 41 ns Propagation Delay, R to Q tPHL CL = 50pF 2 - - 180 - 225 - 270 ns 4.5 - - 36 - 45 - 54 ns 6 - - 31 - 38 - 46 ns Output Transition Time tTLH, tTHL CL = 50pF 2 - - 75 - 95 - 110 ns 4.5 - - 15 - 19 - 22 ns 6 - - 13 - 16 - 19 ns Input Capacitance CIN - - - - 10 - 10 - 10 pF Pulse Width Match Between Circuits in the Same Package CX = 1000pF, RX = 10kΩ - 4.5 to 5.5 - ±2- - - - - % Power Dissipation Capacitance (Notes 4, 5) CPD - 5 - 166 - - - - - pF HCT TYPES Propagation Delay, Trigger A, B, R to Q tPLH CL = 50pF 4.5 - - 42 - - - 63 ns CL = 15pF 5 - 18 - - - - - ns Propagation Delay, Trigger A, B, R to Q tPHL CL = 50pF 4.5 - - 34 - 43 - 51 ns CL = 15pF 5 - 14 - - - - - ns Propagation Delay, R to Q tPLH CL = 50pF 4.5 - - 38 - - - 57 ns Propagation Delay, R to Q tPHL CL = 50pF 4.5 - - 37 - - - 56 ns Output Transition Time tTLH, tTHL CL = 50pF 2 - - 75 - 95 - 110 ns 4.5 - - 15 - 19 - 22 ns 6 - - 13 - 16 - 19 ns Input Capacitance CIN - - - - 10 - 10 - 10 pF Pulse Width Match Between Circuits in the Same Package CX = 1000pF, RX = 10kΩ - 4.5 to 5.5 - ±2- - - - - % Power Dissipation Capacitance (Notes 4, 5) CPD - 5 - 166 - - - - - pF NOTES: 4. CPD is used to determine the dynamic power consumption, per multivibrator. 5. PD = (CPD + CL) VCC 2 f i + Σ where fi = input frequency, fo = output frequency, CL = output load capacitance, VCC = supply voltage. Switching Specifications Input tr, tf = 6ns (Continued) PARAMETER SYMBOL TEST CONDITIONS VCC (V) 25oC -40oC TO 85oC -55oC TO 125oC UNITS MIN TYP MAX MIN MAX MIN MAX CD54HC221, CD74HC221, CD74HCT221 |
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