74161 COUNTER DATA SHEET PDF

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. DMDMDM Synchronous These synchronous presettable counters feature an inter- Office Distributors for availability and specifications.

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I have added a debounce circuit, but still to avail.

Finally, you should not count on TTL outputs driving high, as you have shown. 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.

That’s probably causing as much trouble as no debounce was. As further issues arise I see myself stuck once more with a dysfunctional circuit. You can often get away with less, but as you’ve just learned, insufficient decoupling can have weird symptoms. Then I used a pullup resistor for the clear switch. Home Questions Tags Users Unanswered.

I’d reduce that down to something in the nF to 1uF range. Okay I wired 7,9, and 10 together and rata connected them to a 1K resistor to 5V.

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– Presettable synchronous 4-bit binary counter; asynchronous reset – ChipDB

TTL works much better pulling loads down. I’m still getting the same effect. Since you already need one section of aand there are 6 gates per IC, you simply go. For breadboards, eheet a cap for each IC. Email Required, but couunter shown. Oh, Ill change that and see what happens. Without this buffering, your switch should not work on a button push, only on a release. Get into the habit now. In that case, invert the signals going to your LEDs. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

It’s always the simple things.

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. Sign up using Email and Password.

Since you already need one section of aand there are 6 gates per IC, you simply go simulate this circuit. So your outputs should be connected like. Sign up using Facebook.

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Whenever I press the clock button I get all of the leds on except maybe one or two, with some flashing during the button press. Post as a guest Name.

(PDF) 74161 Datasheet download

I dqta the LEDs around and connected their input to 5V and their ground to the output pins. 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.

WhatRoughBeast 49k 2 28 Sign up or log in Sign up using Google. Also, have you added a 0.

4-bit Synchronous Counter with Asynchronous Clear

I added a 0. 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 shfet.

For a circuit board with a ground plane, the usual guideline is at least one cap per 5 ICs.