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SN74ACT7807 数据表(PDF) 13 Page - Texas Instruments |
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SN74ACT7807 数据表(HTML) 13 Page - Texas Instruments |
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13 / 15 page ![]() SN74ACT7807 2048 × 9 CLOCKED FIRST-IN, FIRST-OUT MEMORY SCAS200D – JANUARY 1991 – REVISED APRIL 1998 13 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TYPICAL CHARACTERISTICS Figure 6 PROPAGATION DELAY TIME vs LOAD CAPACITANCE 0 50 100 150 200 250 300 CL – Load Capacitance – pF VCC = 5 V RL = 500 Ω TA = 25°C typ + 8 typ + 6 typ + 4 typ + 2 typ typ – 2 Figure 7 100 80 40 20 0 60 0 10 2030 405060 120 70 ACTIVE ICC vs FREQUENCY f – Frequency – MHz 140 160 180 200 TA = 25°C VCC = 5 V VCC = 4.5 V VCC = 5.5 V 5 4 2 1 0 3 0 1020 30 4050 60 6 f – Frequency – MHz 70 Slope = 0.07 VCC = 4.5 V VCC = 5 V VCC = 5.5 V TA = 25° Figure 8. SN74ACT7807 Idle ICC With WRTCLK Switching, Other Inputs at 0 or VCC – 0.2 V and Outputs Disconnected |
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