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SN74HC163-Q1 датащи(PDF) 9 Page - Texas Instruments |
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SN74HC163-Q1 датащи(HTML) 9 Page - Texas Instruments |
9 / 17 page SN74HC163Q1 4BIT SYNCHRONOUS BINARY COUNTER SCLS584A − MAY 2004 − REVISED APRIL 2008 9 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 APPLICATION INFORMATION n-bit synchronous counters This application demonstrates how the look-ahead carry circuit can be used to implement a high-speed n-bit counter. The SN74HC163 counts in binary. Virtually any count mode (modulo-N, N1-to-N2, N1-to-maximum) can be used with this fast look-ahead circuit. The application circuit shown in Figure 2 is not valid for clock frequencies above 18 MHz (at 25 °C and 4.5-V VCC). The reason for this is that there is a glitch that is produced on the second stage’s RCO and every succeeding stage’s RCO. This glitch is common to all HC vendors that Texas Instruments has evaluated, in addition to the bipolar equivalents (LS, ALS, AS). |
Аналогичный номер детали - SN74HC163-Q1 |
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