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CD54ACT74 Datasheet(PDF) 3 Page - Texas Instruments |
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CD54ACT74 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 10 page  CD54ACT74, CD74ACT74 DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH CLEAR AND PRESET SCHS321 – DECEMBER 2002 3 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 –55 °C to 125 °C –40 °C to 85 °C UNIT CC MIN MAX MIN MAX MIN MAX IOH = –50 µA 4.5 V 4.4 4.4 4.4 VOH VI =VIH or VIL IOH = –24 mA 4.5 V 3.94 3.7 3.8 V VOH VI = VIH or VIL IOH = –50 mA† 5.5 V 3.85 V IOH = –75 mA† 5.5 V 3.85 IOL = 50 µA 4.5 V 0.1 0.1 0.1 VOL VI =VIH or VIL IOL = 24 mA 4.5 V 0.36 0.5 0.44 V VOL VI = VIH or VIL IOL = 50 mA† 5.5 V 1.65 V IOL = 75 mA† 5.5 V 1.65 II VI = VCC or GND 5.5 V ±0.1 ±1 ±1 µA ICC VI = VCC or GND, IO = 0 5.5 V 4 80 40 µA DICC‡ VI = VCC – 2.1 V 4.5 V to 5.5 V 2.4 3 2.8 mA Ci 10 10 10 pF † Test one output at a time, not exceeding 1-second duration. Measurement is made by forcing indicated current and measuring voltage to minimize power dissipation. Test verifies a minimum 50- Ω transmission-line drive capability at 85°C and 75-Ω transmission-line drive capability at 125°C. ‡ Additional quiescent supply current per input pin, TTL inputs high, 1 unit load ACT INPUT LOAD TABLE INPUT UNIT LOAD Data 0.53 PRE or CLR 0.58 CLK 1 Unit load is ∆ICC limit specified in electrical characteristics table (e.g., 2.4 mA at 25 °C). timing requirements over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) –55 °C to 125 °C –40 °C to 85 °C UNIT MIN MAX MIN MAX fclock Clock frequency 85 97 MHz t Pulse duration PRE or CLR low 5 4.4 ns tw Pulse duration CLK 5.7 5 ns t Setup time Data 4 3.5 ns tsu Setup time PRE or CLR inactive ns th Hold time Data after CLK ↑ 0 0 ns trec Recovery time, before CLK ↑ CLR ↑ or PRE↑ 2.7 2.4 ns |
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