lectures.alex.balgavy.eu

Lecture notes from university.
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Counters.html (1269B)


      1 <?xml version="1.0" encoding="UTF-8"?>
      2 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
      3 <html><head><link rel="stylesheet" href="sitewide.css" /><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/><meta name="exporter-version" content="Evernote Mac 6.13.1 (455785)"/><meta name="altitude" content="2.578593730926514"/><meta name="author" content="Alex Balgavy"/><meta name="created" content="2017-11-09 3:48:58 PM +0000"/><meta name="latitude" content="52.33300923649106"/><meta name="longitude" content="4.865525547823282"/><meta name="source" content="desktop.mac"/><meta name="updated" content="2017-11-09 3:52:03 PM +0000"/><title>Counters</title></head><body><div><span style="font-weight: bold;">3-bit counter (asynchronous)</span></div><div>below is a counter made with T flip-flops.</div><div>when T is 1, the value changes with each tick.</div><div>Changing from 0 to 1 to 0 takes 2 ticks. This means that Q₀ has a frequency half of the clock, Q₁ a frequency half of Q₀, etc.</div><div>This means we can make a ripple counter.</div><div><br/></div><div><img src="Counters.resources/screenshot.png" height="213" width="538"/><br/></div><div><br/></div></body></html>