EEVblog 1611 - Top 5 Jellybean 7400 & 4000 Logic

The TOP 5 Jellybean 7440 and 4000 series logic chips.

00:00 - Top 5 TTL and CMOS Jellybean chips
00:37 - Different 7400 series family types
01:52 - What makes a Jellybean component
03:27 - CD4051 / CD4052 / CD4053 Analog Multiplexer Switch
17:42 - 74HC595 8 Bit Latched Shift Register
20:58 - Used in the MXO4 oscilloscope
24:09 - Driving LED's
26:12 - 74HC74 Dual D Flip Flop
27:00 - Used in the Rigol HDO1000 Oscilloscope
28:14 - Uses for a D Flip Flop
28:53 - Special Mention 74HC374/ 74HC574
30:35 - 74HC14 Hex Schmitt Trigger Inverter
35:18 - Last chip, what about NAND NOR or XOR?
36:06 - 74HC245

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#ElectronicsCreators #top5 #tutorial

[EmrysMaier]

4:20 Thanks Dave! That's my functional diagram drawing. I was a little worried some people wouldn't like how obfuscated it was, but I felt that it really clearly illustrated the function of the device!

[michaelboyd]

The 74XX138 3 TO 8 decoder is a favourite of mine. I love these 74 & 4000 series chips, they pretty much form the heart of traditional basic digital electronics.
Cheers for the great video Dave 👍

[tonyh]

The CD4060 is a useful part comprising an RC or XTAL oscillator and a 14 stage ripple counter for generating long timeouts from < 1 second up to many hours, without the need for a microcontroller. The CD4521 is similar but has a 24 bit counter allowing longer timeouts and/or higher oscillator frequencies. An example usage is for a simple motorized door/gate opening/shutting controller where the timer is used to protect the motor by turning it off in the event of a failure to receive an open or closed limit signal.

[ats]

Dave is obviously a youngster. In the beginning, there was just the 74/54 series parts, and everything you wanted to know about them was available in TI's orange " The TTL Data Book for Design Engineers". Everything in one place. That book, some parts, a few wirewrap boards with gold plated pins, AWG 30 wire, and your wirewrapping tool (manual or electric), and you were good to go.

[NickNorton]

16:23 I appreciate Dave's Signing for audiophiles.

[mikeselectricstuff]

HC595 has to be the most common HCMOS these days.
Pity they messed up the reset functionality - resetting the shift reg but not the output reg makes the pin pretty much useless - would have been nice to be able to use it for power-up reset etc.

[norm]

I love this Jellybean videos and would like a poster containing all of them with their pinout and main characteristics.

[lorenzo.c]

I must say this one is my favourite "top jellybean components".
I'll be honest: my favourite logic type is still the humble inverter with Schmitt-trigger input for the simple reason that, with just very few passives, it allows a variety of basic digital signal conditioning.
R-C makes de-bouncing of switches possible in HW and it also works as a digital delay/time-shift. It can also be seen as de-glitching stage (it only lets pulses longer than a minimum through). With the addition of a diode and a second resistor it performs an asymmetric delay of the rising/falling edges and therefore pulse-shaping (changes the duty-cycle). By swapping R and C we have now a pulse generator. I can't count the number of times in which I ended up with inverters in my designs despite having FPGAs, MCUs, processors...

[orri]

4017 counter was my introduction IC into electronics as a teen. I also remember doing some sound experiments with a 4011 IC.

[IanScottJohnston]

I remember way back in the day designing a pcb to route multiple analogue signals and with some digital lamp indicators & DVM's using nothing but 74/4000 series logic. That was the days before microcontrollers where it would have been easy! The days of pouring over the logic tables and scribbling designs on paper weren't that bad....fun times!

[der.Schtefan]

When I was in engineering school and learned about 7400 logic "families" I was 14/15. Due to me being a teenager with a developing brain, I was unable to stop laughing my arse off each time the teacher said "logic family". I made drawings of "them" on a picnic, going on vacations, weddings, funerals. The teachers had to confiscate them and reprimand me each time, with me unable to stop laughing. I am 40 now, and still find the idea of anthropomorphic ICs hilarious 😂 "Dad, will I ever grow up to be low power Schottky?" "If you work hard, and do your best, you can become whatever you want, son!"

[GodmanchesterGoblin]

For higher current with the 'HC595, take a look at TI'S TPIC6B595 and similar. It's part of their PowerLogic family and ideal for driving higher current LEDs, relays, etc. It's only current sink, not source, but for many applications that's all you need. I was intrigued by the difference between the TI CD405x and 74HC405x data sheets. Then I remembered that TI acquired their 4000 series portfolio when they acquired Harris Semiconductor (late 90s I think). They also adopted the Harris data sheets for those parts and simply rebranded them rather than create new ones.

[MidlifeRenaissanceMan]

A breakdown of all the different 74 types would be great. HC L LS F etc

[randomviewer]

I don't really think about it much, but I probably end up putting in a 7400 series chip into half of my designs. There are just countless times where I needed a logic gate or some really basic functionality and I didn't want to tie it into my micro for one reason or another. It really feels like a bodge that isn't actually a bodge and I have a smile every time it happens.

[harrysvensson]

0:57 Yes! I want a video about all the families!

[over-engineered]

In July 1976 I spent £5 on a Motorola 4000 series McMOS data book. That book stayed with me for decades and was a very useful source of data for the many 4000 series projects I designed over the years.

[Graham_Wideman]

Regarding 74HC14, for similar reasons I often favor HC4093, or the 74HC132 (equivalent function, different pinout). A single package and you cover both your Schmitt function and NAND function, and if you have gates left over, a NAND can be handy for a later bodge. Then again, those single-gate "1G" family parts are very handy too.

[richardballinger]

Nice one Dave, using 595's at present to expand my PIC's output to drive 16 leds.

[lmiddleman]

You keep saying the multi channel analog muxes are completely independent, but they’re not… they are ganged. They share the mux select inputs, and therefore switch together.

[classicaudioadventures]

I recently tore down an Arturia Polybrute analog synthesizer...the control board assemblies were littered with CD4051 mux chips for modulation routing. I counted about a dozen STM32 micros throughout the unit as well!