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SN74HC4060D データシート(PDF) 6 Page - Texas Instruments |
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SN74HC4060D データシート(HTML) 6 Page - Texas Instruments |
6 / 23 page SN54HC4060, SN74HC4060 14STAGE ASYNCHRONOUS BINARY COUNTERS AND OSCILLATORS SCLS161D − DECEMBER 1982 − REVISED SEPTEMBER 2003 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 CONNECTING AN RC-OSCILLATOR CIRCUIT TO THE ’HC4060 DEVICES The ’HC4060 devices consist of an oscillator section and 14 ripple-carry binary counter stages. The oscillator configuration allows design of either RC- or crystal-oscillator circuits. When an RC-oscillator circuit is implemented, two resistors and a capacitor are required. The components are attached to the terminals as shown: 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 R2 R1 C To determine the values of capacitance and resistance necessary to obtain a specific oscillator frequency (f), use this formula: f + 1 2(R1)(C) 0.405 R2 R1 )R2 ) 0.693 If R2 > > R1 (i.e., R2 = 10R1), the above formula simplifies to: f + 0.455 RC |
同様の部品番号 - SN74HC4060D |
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同様の説明 - SN74HC4060D |
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