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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Since you countet need one section of aand there are 6 gates per IC, you simply go. Post as a guest Name. Without this buffering, your switch should not work on a button push, only on a release. I’d reduce that down to something in the nF to 1uF range. Sign up using Facebook. 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 have added a debounce circuit, but still to avail. Get into the habit now. For breadboards, use a cap for each IC. 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.

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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. That’s probably causing as much trouble as no debounce was. I’m still getting the same effect.

Also, have you added a 0. I switched the LEDs around and connected their input to 5V and their ground to the output pins. WhatRoughBeast 49k 2 28 Finally, you should not count on TTL outputs driving high, as you have shown. Okay I wired 7,9, and 10 together and then connected them to a 1K resistor to 5V. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

Home Questions Tags Users Unanswered. It’s always the simple things.

Sign up or log in Sign up using Google. I added a 0. Email Required, but never shown. Then I used a pullup resistor for the clear switch.

As further issues arise I see myself stuck once more with a dysfunctional circuit. Since you already need one sheett of aand there are 6 gates per IC, you simply go simulate this circuit.

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Datasheet(PDF) – TI store

In that case, invert the signals going to your LEDs. Oh, Ill change that and see what happens. 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.

TTL works much better pulling loads down. You can often get away with less, but as you’ve just learned, insufficient decoupling can have weird symptoms.

Fairchild Semiconductor

So your outputs should be connected like. For a circuit board with a ground plane, the usual guideline is at least one cap dqta 5 ICs. 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.

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