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SN74HC161DTE4 Datasheet(PDF) 7 Page - Texas Instruments |
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SN74HC161DTE4 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 24 page SN54HC161, SN74HC161 4BIT SYNCHRONOUS BINARY COUNTERS SCLS297D − JANUARY 1996 − REVISED SEPTEMBER 2003 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC TA = 25°C SN54HC161 SN74HC161 UNIT PARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN MAX MIN MAX UNIT 2 V 1.9 1.998 1.9 1.9 IOH = −20 µA 4.5 V 4.4 4.499 4.4 4.4 VOH VI = VIH or VIL IOH = −20 µA 6 V 5.9 5.999 5.9 5.9 V VOH VI = VIH or VIL IOH = −4 mA 4.5 V 3.98 4.3 3.7 3.84 V IOH = −5.2 mA 6 V 5.48 5.8 5.2 5.34 2 V 0.002 0.1 0.1 0.1 IOL = 20 µA 4.5 V 0.001 0.1 0.1 0.1 VOL VI = VIH or VIL IOL = 20 µA 6 V 0.001 0.1 0.1 0.1 V VOL VI = VIH or VIL IOL = 4 mA 4.5 V 0.17 0.26 0.4 0.33 V IOL = 5.2 mA 6 V 0.15 0.26 0.4 0.33 II VI = VCC or 0 6 V ±0.1 ±100 ±1000 ±1000 nA ICC VI = VCC or 0, IO = 0 6 V 8 160 80 µA Ci 2 V to 6 V 3 10 10 10 pF timing requirements over recommended operating free-air temperature range (unless otherwise noted) VCC TA = 25°C SN54HC161 SN74HC161 UNIT VCC MIN MAX MIN MAX MIN MAX UNIT 2 V 6 4.2 5 fclock Clock frequency 4.5 V 31 21 25 MHz fclock Clock frequency 6 V 36 25 29 MHz 2 V 80 120 100 CLK high or low 4.5 V 16 24 20 tw Pulse duration CLK high or low 6 V 14 20 17 ns tw Pulse duration 2 V 80 120 100 ns CLR low 4.5 V 16 24 20 CLR low 6 V 14 20 17 2 V 150 225 190 A, B, C, or D 4.5 V 30 45 38 A, B, C, or D 6 V 26 38 32 2 V 135 205 170 LOAD low 4.5 V 27 41 34 tsu Setup time before CLK ↑ LOAD low 6 V 23 35 29 ns tsu Setup time before CLK ↑ 2 V 170 255 215 ns ENP, ENT 4.5 V 34 51 43 ENP, ENT 6 V 29 43 37 2 V 125 190 155 CLR inactive 4.5 V 25 38 31 CLR inactive 6 V 21 32 26 2 V 0 0 0 th Hold time, all synchronous inputs after CLK ↑ 4.5 V 0 0 0 ns th Hold time, all synchronous inputs after CLK 6 V 0 0 0 ns |
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