If you're planning to breadboard circuits, SOP-14 (they're usually called SOIC-14) will require adapters.$0.88 10Pcs CD4001 CD4001BM SOP-14 TI CMOS QUAD BILATERAL SWITCH IC KQ
I wouldn't start any new designs with 74xx or 74LS. Prices have gone up on those because there's little demand. You could use 74HCT/ACT for TTL equivalents, but I find that CD4xxx has sufficient variety. CD4xxx, MC14xxx, HEF4xxx should all operate at 3-15V; 18V is the absolute maximum voltage and we don't generally operate near that.an you make a similar correction over other kit series of IC ?
For 7000 and other more important ones ?
In my mind, each category (4000,7000,etc) have unique functionalities. They are different.You could use 74HCT/ACT for TTL equivalents, but I find that CD4xxx has sufficient variety.
I didnt know that. I only know about some transistors with field effect...FET's, to be sensitive to my welding gun, wich have a transformer,All MOSFET devices are static sensitive.
What is the diference between 74HC, 74AC, 74S, and 74LS ? (They are all that you enumerated so far, I should probably look too over them) But i would like your opinion first. Or mister bertus here also. The more, the better. I like your sleepy cat avatar btw. : )Here's a suggested list of 74* parts to start with. I'd go with 74HC or 74AC. 74xx, 74S, and 74LS parts have gotten expensive and are power hungry.
CD4xxx and 7xxx have chips with equivalent functionality (e.g. CD4011 is a quad 2 input NAND and so is 7400). They don't use the same part numbers because they have different pin outs and electrical characteristics.In my mind, each category (4000,7000,etc) have unique functionalities. They are different.
This is an old question of mine, about equivalents: What are they really?
My BEST guess, it just happens that some Ic's from different brands,and factories,and technologies, to have the same functionality.
TTL had a speed advantage over CMOS back in the 70's, but that changed in the 80's. TTL requires more power than TTL (at similar voltages and integration). CMOS uses less power than TTL because most power is consumed when devices are switching (until you get to smaller transistor geometries, sub 90nm, where leakage current becomes a big factor).My advice is to change from FET IC to non FET. I guess they have some advantages.
HC = High speed CMOSWhat is the diference between 74HC, 74AC, 74S, and 74LS ?
Only if the Inhibit signal is generating an internal clock signal.I take that to mean that clocking on the inhibit pin doesn't allow slow rise/fall times.
Only the positive-going clock input. The Enable input can be used as a negative-going clock input, but it is not Schmitt. Too bad; a stupid omission way back when.You need to read the datasheets carefully. HEF4017B from Nexperia say that the clock inputs are Schmitt triggers:
I sent a support request to Nexperia asking for clarification on the clocks. Maybe they improved the design or maybe they made a mistake in the datasheet.Only the positive-going clock input.
dl324 , im glad you're having fun : )I sent a support request to Nexperia asking for clarification on the clocks. Maybe they improved the design or maybe they made a mistake in the datasheet.