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CD74HCT4060 Datasheet(PDF) 8 Page - Texas Instruments |
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CD74HCT4060 Datasheet(HTML) 8 Page - Texas Instruments |
8 / 10 page 8 Qn to Qn+1 tPLH, tPHL CL = 50pF 2 - - - - - - - ns 4.5 - - 16 - 20 - 24 ns CL = 15pF 5 - 6 - - - - - ns CL = 50pF 6 - - - - - - - ns MR to Qn tPHL CL = 50pF 2 - - - - - - - ns 4.5 - - 44 - 55 - 66 ns CL = 15pF 5 - 17 - - - - - ns CL = 50pF 6 - - - - - - - ns Output Transition Time tTHL, tTLH CL = 50pF 2 - - - - - - - ns 4.5 - - 15 - 19 - 22 ns 6- - - - - - - ns Input Capacitance CI (TBD) Propagation Dissipation Capacitance CPD - - -40- - - - - pF NOTES: 7. CPD is used to determine the dynamic power consumption, per package. 8. PD = CPD VCC 2 f i ∑(CL VCC 2 f i/M) where M = 2 1, 22, 23, ...214, f i = input frequency, CL = output load capacitance. 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 TYPICAL LIMIT VALUES FOR RX AND CX PARAMETER TEST CONDITIONS VOLTAGE TYPICAL MAXIMUM LIMITS RX Minimum CX > 1000pF 2 1K Ω CX > 10pF 4.5 CX > 10pF 6 RX Maximum CX > 10pF 2 20M Ω CX > 10pF 4.5 CX > 10pF 6 CX Minimum RX > 10KΩ 2 10pF RX > 10KΩ 4.5 RX > 10KΩ 6 RX = 1KΩ 2 1000pF RX = 1KΩ 4.5 10pF RX = 1KΩ 6 10pF Maximum Astable Oscillator Frequency CX = 1000pF, RX = 1KΩ 2 0.5MHz (Note 9) CX = 100pF, RX = 1KΩ 4.5 3MHz (Note 9) CX = 100pF, RX = 1KΩ 6 3MHz (Note 9) NOTE: 9. At very high frequencies f = 1/2.2 RXCX no longer gives an yaccurate approximation. NOTE: OSC Frequency ≈ 1/2.2 R XCX For 1M Ω > RX > 1KΩ, CX > 10pF, f < 1MHz FIGURE 2. FREQUENCY OF ON-BOARD OSCILLATOR AS A FUNCTION OF CX AND RX 102 10 1 10-1 10-2 10-3 10-4 10-5 10-1 100 10 102 103 104 105 106 OSCILLATOR FREQUENCY (Hz) TA = 25 oC RX = 1KΩ 10K Ω 100K Ω 1M Ω 10M Ω CD74HC4060, CD74HCT4060 |
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