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SN54HC4020 Datasheet(PDF) 4 Page - Texas Instruments |
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SN54HC4020 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 18 page  SN54HC4020, SN74HC4020 14BIT ASYNCHRONOUS BINARY COUNTERS SCLS158E − DECEMBER 1982 − REVISED SEPTEMBER 2003 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 timing requirements over recommended operating free-air temperature range (unless otherwise noted) VCC TA = 25°C SN54HC4020 SN74HC4020 UNIT VCC MIN MAX MIN MAX MIN MAX UNIT 2 V 5.5 3.7 4.3 fclock Clock frequency 4.5 V 28 19 22 MHz fclock Clock frequency 6 V 33 22 25 MHz 2 V 90 135 115 CLK high or low 4.5 V 18 27 23 tw Pulse duration CLK high or low 6 V 15 23 20 ns tw Pulse duration 2 V 70 105 90 ns CLR high 4.5 V 14 21 18 CLR high 6 V 12 18 25 2 V 60 90 75 tsu Setup time, CLR inactive before CLK ↓ 4.5 V 12 18 15 ns tsu Setup time, CLR inactive before CLK ↓ 6 V 10 15 13 ns switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 1) PARAMETER FROM TO VCC TA = 25°C SN54HC4020 SN74HC4020 UNIT PARAMETER FROM (INPUT) TO (OUTPUT) VCC MIN TYP MAX MIN MAX MIN MAX UNIT 2 V 5.5 10 3.7 4.3 fmax 4.5 V 28 45 19 22 MHz fmax 6 V 33 53 22 25 MHz 2 V 62 150 225 190 tpd CLK QA 4.5 V 16 30 45 38 ns tpd CLK QA 6 V 12 26 38 32 ns 2 V 63 140 210 175 tPHL CLR Any 4.5 V 17 28 42 35 ns tPHL CLR Any 6 V 13 24 36 30 ns 2 V 28 75 110 95 tt Any 4.5 V 8 15 22 19 ns tt Any 6 V 6 13 19 16 ns operating characteristics, TA = 25°C PARAMETER TEST CONDITIONS TYP UNIT Cpd Power dissipation capacitance No load 88 pF |
Similar Part No. - SN54HC4020_07 |
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Similar Description - SN54HC4020_07 |
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