74161 COUNTER DATASHEET PDF

74LS Synchronous 4-bit Binary Counters. These synchronous, presettable counters feature an internal carry look-ahead for application in high-speed. 74LS datasheet, 74LS pdf, 74LS data sheet, datasheet, data sheet, pdf, Fairchild Semiconductor, Synchronous 4-Bit Binary Counters. These synchronous, presettable counters feature an inter- nal carry look-ahead for application in high-speed counting designs. The DM74LSA and.

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For a dtaasheet board with a ground plane, the usual guideline is at least one cap per 5 ICs. Since you already need one section of aand there are 6 gates per IC, you simply go. I added a 0. Post as a guest Name. I have added a debounce circuit, but still to avail. Home Questions Tags Users Unanswered.

By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. I switched the LEDs around and connected their input to 5V and their ground to the output pins.

As further issues arise I see myself countee once more with a dysfunctional circuit.

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For breadboards, use a cap for each IC. Without this buffering, your switch should not work on a button push, only on a release. Datashet you already need one section of aand there are 6 gates per IC, you simply go simulate this circuit. By using our site, you acknowledge that you have read and understand 741611 Cookie PolicyPrivacy Policyand our Terms of Service.

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Finally, you should not count on TTL outputs driving high, as you have shown. Whenever I press the clock button I get all of the leds on except maybe one or two, with some flashing during the eatasheet press. Email Required, but never shown.

Get into the habit now. In that case, invert the signals going to your LEDs.

Oh, Ill change that and see what happens. You may object that this will provide LEDs which are on when the output is low, and off when the outputs are high, which is confusing. So your outputs should be connected like simulate this circuit — Schematic created using CircuitLab You may object that this will provide LEDs which are on when the output is low, and off when the outputs are high, which is confusing.

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I’d reduce that down to something in the nF to 1uF range.

Then I used a pullup resistor for the clear switch. Okay I wired 7,9, and coynter together and then connected them to a 1K resistor to 5V. Also, have you added a 0. TTL works much better pulling loads down. Sign up or log in Sign up using Google.

N 4-bit counter not counting properly – Electrical Engineering Stack Exchange

That’s probably causing as much trouble as no debounce was. Sign up using Email and Password. WhatRoughBeast 49k 2 28 You can often get away with less, but couhter you’ve just learned, insufficient decoupling can have weird symptoms. So your outputs should be connected like. It’s always the simple things.

Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. I’m still getting the same effect.