SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL. SDLS – DECEMBER – REVISED MARCH 3. POST OFFICE BOX . datasheet, pdf, data sheet, datasheet, data sheet, pdf, Fairchild Semiconductor, Synchronous 4-Bit Up/Down Counter with Mode Control. Category. Description, Synchronous 4-bit Up/down Counter with Mode Control. Company, Fairchild Semiconductor. Datasheet, Download datasheet.

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Two outputs have been made available to perform the cascading function: Low to High Level Output. Oct 8, 5.

Texas Instruments SN74191N Synchronous 4-Bit Up/Down Binary Counters

Your name or email address: Yes, my password is: You’ll note most of the old hands have it in their profile, this is why. Synchronous operation is provided counetr hav.

When the count 11 the chip is cleared. High to Low Level Output. The output will change independent of the level of the clock input. Data Setup Time Note 4. Datasheet — Product page Manufactured: Its all in this video: It will require extra gates.


A HIGH at the enable input inhibits counting. The counter is fully programmable; that is, the outputs may be preset to either level by placing a LOW on the load input and entering the desired data at the data inputs.

how 74191 counter works?

The counters can be easily cascaded countsr feeding the ripple clock output to the enable input of the succeeding counter if parallel clocking is used, or to the clock input if parallel enabling is used. One part is BCD, the other is binary. The latter output produces a high-level output pulse with a duration 7491 equal to one complete cycle of the clock when the counter overflows or underflows.

This mode of operation eliminates the output count.

Texas Instruments SNN Synchronous 4-Bit Up/Down Binary Counters | Found Integrated Circuits

Jul 26, 2, Oct 8, 7. That is to cascade counters, so it can count up and down. The problem I see with using a is simple, no reset pin.

Ripple clock output for cascading. The outputs of the four master-slave flip-flops are triggered on a low-to-high transition of the clock input if the enable input is fatasheet.


Operating Free Air Temperature Range.

Oct 8, 8. The counter is fully programmable; that is, the outputs may. Clock Frequency Note 4. Look at post 7, I posted a pinout I made as part of my PaintCAD package used for quick and dirty drawing of schematics.

Datasheet pdf – Synchronous 4-Bit Up/Down Counter with Mode Control – Fairchild Semiconductor

It is what I thought you were talking about originally. What part of the world are you in? Oct 8, 2. I suspect this is a sledgehammer approach to a simple problem.

This feature allows the counters to be used as modulo-N divid- ers by simply modifying datasehet count length with the preset inputs. Do you want me to sketch out something using the that is a simple counter? Low Level Input Voltage. Fairchild Semiconductor Electronic Components Datasheet.