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  2. Frequency divider - Wikipedia

    en.wikipedia.org/wiki/Frequency_divider

    For power-of-2 integer division, a simple binary counter can be used, clocked by the input signal. The least-significant output bit alternates at 1/2 the rate of the input clock, the next bit at 1/4 the rate, the third bit at 1/8 the rate, etc. An arrangement of flipflops is a classic method for integer-n division. Such division is frequency ...

  3. Prescaler - Wikipedia

    en.wikipedia.org/wiki/Prescaler

    A prescaler is an electronic counting circuit used to reduce a high frequency electrical signal to a lower frequency by integer division.The prescaler takes the basic timer clock frequency (which may be the CPU clock frequency or may be some higher or lower frequency) and divides it by some value before feeding it to the timer, according to how the prescaler register(s) are configured.

  4. List of 7400-series integrated circuits - Wikipedia

    en.wikipedia.org/wiki/List_of_7400-series...

    1 decade counter (separate divide-by-2 and divide-by-5 sections) 14 SN74LS90: 74x91 1 8-bit shift register, serial in, serial out, gated input 14 SN74LS91: 74x92 1 divide-by-12 counter (separate divide-by-2 and divide-by-6 sections) 14 SN74LS92: 74x93 1 4-bit binary counter (separate divide-by-2 and divide-by-8 sections); different pinout for ...

  5. Intel 8253 - Wikipedia

    en.wikipedia.org/wiki/Intel_8253

    All PC compatibles operate the PIT at a clock rate of 105/88 = 1.193 18 MHz, 1 ⁄ 3 the NTSC colorburst frequency which comes from dividing the system clock (14.31818 MHz) by 12. This is a holdover of the very first CGA PCs – they derived all necessary frequencies from a single quartz crystal , and to make TV output possible, this oscillator ...

  6. Dual-modulus prescaler - Wikipedia

    en.wikipedia.org/wiki/Dual-modulus_prescaler

    The lower, yellow trace is the N counter output whose frequency corresponds to the channel spacing frequency of 30 kHz. The green trace is the output from the dual-modulus prescaler, which happens to correspond to 7.1714 MHz in the case that the prescaler is at 128 and 7.1158 when it is at 129.

  7. New HIV prevention drug could reach poorest countries ... - AOL

    www.aol.com/news/hiv-prevention-drug-could-reach...

    A new long-acting preventive HIV drug could reach the world’s poorest countries by the end of 2025 or early 2026, a global health official told Reuters on Tuesday. The ambition is to start ...

  8. The Huffington Post

    huffingtonpost.com/2012/01/11/girl-scout-cookie...

    The Huffington Post

  9. Today’s NYT ‘Strands’ Hints, Spangram and Answers for ...

    www.aol.com/today-nyt-strands-hints-spangram...

    According to the New York Times, here's exactly how to play Strands: Find theme words to fill the board. Theme words stay highlighted in blue when found.