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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(PDF) 74161 Datasheet download
I have added a debounce circuit, but still to avail. It’s always the simple things. Then I used a pullup resistor for the clear switch. For a circuit board with a ground plane, the usual guideline is at least one cap per 5 ICs.
As further issues arise I see myself stuck once more with a dysfunctional circuit. Also, have you added a 0. I’d reduce that down to something in the nF to 1uF range.
4-bit Synchronous Counter with Asynchronous Clear
I’m still getting the same effect. Without this buffering, your switch should not work on a button push, only on a release. Get into the habit now.
Okay I wired 7,9, and 10 together and then connected them to a 1K resistor to 5V. Shet up using Email and Password.
Fairchild Semiconductor – datasheet pdf
Sata, you should not sbeet on TTL outputs driving high, as you have shown. Oh, Ill change that and see what happens. You can often get away with less, but as you’ve just learned, insufficient decoupling can have weird symptoms. 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.
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.
In that case, invert the signals going to your LEDs.
Home Questions Tags Users Unanswered. Sheft you already need one section of aand there are 6 gates per IC, you simply go simulate this circuit.
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Since you already need one section of aand there are 6 gates per IC, you simply go.