74161 COUNTER DATA SHEET PDF

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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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Datasheet(PDF) – TI store

It’s always the simple things. I switched the LEDs around and connected their input to 5V and their ground to the output pins. I’m still getting the same effect.

Okay I wired 7,9, and 10 together and then connected them to a 1K resistor to 5V. That’s probably causing as much trouble as no debounce was.

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. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

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For breadboards, use a cap for each IC. 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.

4-bit Synchronous Counter with Asynchronous Clear

Whenever I press the clock button I get all of the leds on except maybe one or two, with some flashing countef the button press. Also, have you added a 0. You can often get away with less, but as you’ve just learned, insufficient decoupling can have weird symptoms. Email Required, but never shown.

Oh, Ill change that and see what happens. I have added a debounce circuit, but still to avail.

Fairchild Semiconductor

Home Questions Tags Users Unanswered. TTL works much better pulling loads down. Finally, you should not count on TTL outputs driving high, as you have shown. For a circuit board with a ground plane, countef usual guideline is at least one cap per 5 ICs. Sign up using Facebook. I added a 0.

(PDF) 74161 Datasheet download

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. As further issues arise I see myself stuck once more with a dysfunctional circuit. Get into the habit now.

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Post as a guest Name. Since you already need one section of aand there are 6 gates per IC, you simply go. Then I used a pullup resistor for the clear switch.

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So your outputs should be connected like. 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. In that case, invert the signals going to your LEDs.

Since you already need one section of aand there are 6 gates per IC, you simply go simulate this circuit. WhatRoughBeast 49k 2 28