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CD4541 Datasheet(PDF) 5 Page - Texas Instruments |
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CD4541 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 9 page 5 Digital Timer Application A positive pulse on MASTER RESET resets the counters and latch. The output goes high and remains high until the number of pulses, selected by A and B, are counted. This circuit is retriggerable and is as accurate as the input fre- quency. If additional accuracy is desired, an external clock can be used on pin 3. A setup time equal to the width of the one-shot output is required immediately following initial power up, during which time the output will be high. 1 2 3 4 5 6 7 14 13 12 11 10 9 8 RTC RS AR MR INPUT B A t OUTPUT VDD CTC FIGURE 3. DIGITAL TIMER APPLICATION CIRCUIT 82 80 70 60 50 40 30 20 10 0 0 10 20 304050 60 70 80 88 79 - 87 (2.007 - 2.210) 4 - 10 (0.102 - 0.254) 85 - 93 (2.159 - 2.362) NOTE: Dimensions in parentheses are in millimeters and are de- rived from the basic inch dimensions as indicated. Grid graduations are in mils (10-3 inch). FIGURE 4. DIMENSIONS AND PAD LAYOUT FOR CD4541B CD4541B |
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Similar Description - CD4541 |
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