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CDC339 Arkusz danych(PDF) 3 Page - Texas Instruments |
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CDC339 Arkusz danych(HTML) 3 Page - Texas Instruments |
3 / 7 page CDC339 CLOCK DRIVER WITH 3-STATE OUTPUTS SCAS331 – DECEMBER 1992 – REVISED MARCH 1994 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions (see Note 3) MIN MAX UNIT VCC Supply voltage 4.75 5.25 V VIH High-level input voltage 2 V VIL Low-level input voltage 0.8 V VI Input voltage 0 VCC V IOH High-level output current –48 mA IOL Low-level output current 48 mA fclock Input clock frequency 80 MHz TA Operating free-air temperature –40 85 °C NOTE 3: Unused pins (input or I/O) must be held high or low. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT VIK VCC = 4.75 V, II = –18 mA –1.2 V VOH VCC = 4.75 V, IOH = – 48 mA 2 V VOL VCC = 4.75 V, IOL = 48 mA 0.5 V IIH VCC = 5.25 V, VI = 2.7 V 50 µA IIL VCC = 5.25 V, VI = 0.5 V –50 µA IOZ VCC = 5.25 V, VO = 2.7 V or 0.5 V ±50 µA IO‡ VCC = 5.25 V, VO = 2.5 V –50 – 180 mA V 5 25 V I 0 Outputs high 70 ICC VCC = 5.25 V, IO = 0, VI =VCC or GND Outputs low 85 mA VI = VCC or GND Outputs disabled 70 Ci VI = 2.5 V or 0.5 V 3 pF Co VO = 2.5 V or 0.5 V 8 pF † All typical values are at VCC = 5 V, TA = 25°C. ‡ Not more than one output should be tested at a time, and the duration of the test should not exceed one second. timing requirements over recommended ranges of supply voltage and operating free-air temperature MIN MAX UNIT fclock Clock frequency 80 MHz CLR low 4 tw Pulse duration CLK low 4 ns CLK high 4 tsu Setup time CLR inactive before CLK ↑ 2 ns Clock duty cycle 40% 60% |
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