Binary Counter...enable pins?

Discussion in 'The Projects Forum' started by Babae, Mar 19, 2014.

  1. Babae

    Thread Starter New Member

    Feb 4, 2014
    I am currently working on a project that involves the use of binary counters. This is my first time using them so I am a little bit confused about certain enable pins on a binary counter.

    The IC I am using is the 74F269 from NXP.

    I am just wondering what do the CET, CEP and PE pins do. I could not find any useful information on the datasheet or google.
  2. crutschow


    Mar 14, 2008
    CET and CEP are used for cascading the counters as shown in Figure 4 in the data sheet. PE is to parallel load (jam) the counter with a desired count value (the Px inputs), for example if you wanted to count down from a known input (programmable count).

    A short description of the pin functions is shown in Table 2 (did you miss that?).
  3. Alec_t

    AAC Fanatic!

    Sep 17, 2013