See detailed ordering and shipping information in the package dimensions section on page 6 of this data sheet. ORDERING INFORMATION. 74HC Datasheet, 74HC Dual Decade Ripple Counter Datasheet, buy 74HC 74HC Semiconductors are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for 74HC Semiconductors.

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It appears, from looking at the datasheet, that indeed Q4 is a divide by 10 output, when the chip is configured for a decade counter. I have used decade counters using the “carry output” but I don’t have one hooked up right now. But if the OP is only interested in clocking a subsequent stage, symmetrical datasheft isn’t required.

Apr 14, 1. You do have to be careful with counters. Hello First question here. I want to experiment with 74HC chip.


MCHC Datasheet(PDF) – ON Semiconductor

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Did you look at the datasheet of the SN74HC? It was not a stupid question. Post the part number of the part you’re using, and any data you have on daasheet. I intend to use the 74hc data sheet: The TTL counter is such a beast. If they’re ripple counters, they’ll ripple in cascade. Click here to register now. Started by fastline Yesterday at 8: For instance, the synchronous decade counter is synchronous in its counting only.

74HC390 IC – Dual 4-bit Decade Ripple Counter IC (74390 IC)

Using a Qd output as the gate input for a frequency counter would be a bad idea! Parallel load and reset are asynchronous operations.

Someone must have produced a table, but extensive Googling fails to find it! Q0 would be Qa. Ask a Question Want to reply to this thread or ask your own question?


I noticed your signature. Space Varmint New Member Sep 3, Mikebits Well-Known Member Sep 1, As mentioned, it takes a pretty special application of a counter such that you require a symmetrical Qd output.

Stupid question / Decade Counter

Apr 14, 7. BrownOut Banned Sep 2, Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets. Oh, Texas Instruments say it is obsolete do not show its datasheet. You’ll need to choose a username for the site, which only take a couple of moments here.

Welcome to our site! If I remember correctly it is an asynchronous signal. Apr 14, 6.