How to use TQFP 48 breakout boards? - Page 1
Forum section: electronics / beginners

author: cvriv
author_rank: Frequent Contributor
timestamp: July 20, 2020, 03:57:42 am
content: I bought some new TQFP 48 MCUs and I noticed that the breakout boards for this package wont fit directly to a protoboard for prototyping. Anyone use these and how do you prototype with them other than connecting a whole bunch of jumper wires? I did find some breakout boards that will fit on a protoboard but they wont arrive till maybe mid August and they're kind of expensive, more expensive then the MCUs. LOL.

author: Nominal Animal
author_rank: Super Contributor
timestamp: July 20, 2020, 05:51:42 am
content: I have a couple of 240×320 IPS display modules with a 50-pin 0.5mm pitch flat flex cable. I did happen to find some DIP adapters with a FFC connector on them, but if I hadn't, I'd designed my own inEasyEDAand get a set of five made byJLCPCBfor USD $2 + shipping.I myself am just a hobbyist, but I've madesomeboards this way, and it's worked for me.I did design aTQFP44 with 0.8mm pitch to DIP adapterfor someone else at this forum, for straddling the middle gap in a protoboard setup, but I never had the boards manufactured as I don't have any chips to try it with. I think it would be better with 20mil traces (0.5mm), moving the four squiggly traces just a tiny bit. As this adapter is single-sided, it might make sense to put the bypass caps and maybe even the resonator on the underside – there is plenty of room to route them through vias to the underside on a two-sided board; this one is completely single-sided –, if their height is less than the height of the DIP pins you use. (There are ones with tall plastic part, though.)What I'm saying is that making your own is not hard, and is definitely not expensive, and does not require you to install any software on your computer either. IfIcan do it, so can youWorth considering, at least, methinks.

author: cvriv
author_rank: Frequent Contributor
timestamp: July 22, 2020, 02:49:10 pm
content: Sorry for the late reply and thanks for replying! So I spoke to a buddy of mine that works at the college I attend and he said that if I wanted to design my own boards I could use the colleges ability to make boards. They have the whole UV light etching setup going on there. The college owes me sometime in there anyways because I didn't get to explore that whole process very well during my senior project class because of the whole virus thing.Thanks!

author: Ground_Loop
author_rank: Frequent Contributor
timestamp: July 22, 2020, 07:38:19 pm
content: I got one of these off Amazon for a QFP-64. They have 48s as well. Unfortunately, they are a bit spendy. [ Specified attachment is not available ]

author: kripton2035
author_rank: Super Contributor
timestamp: July 22, 2020, 08:12:51 pm
content: this one is cheaphttps://www.ebay.com/itm/QFP-TQFP-LQFP-32-44-48-64-100-144-pin-to-DIP-Pin-Board-Adapter-Converter/132677376570

author: cvriv
author_rank: Frequent Contributor
timestamp: July 24, 2020, 01:00:10 am
content: Quote from: Ground_Loop on July 22, 2020, 07:38:19 pmVery expensive. There's no way im going to pay that much for those boards. I'm going to wait to design and make my own.

author: cvriv
author_rank: Frequent Contributor
timestamp: July 24, 2020, 01:01:25 am
content: Quote from: kripton2035 on July 22, 2020, 08:12:51 pmYea I bought several of these. If I start working with these MCU's before I can make my own boards, I'll figure out a quick way to get these boards to connect to the protoboard.

author: kripton2035
author_rank: Super Contributor
timestamp: July 24, 2020, 06:31:56 am
content: also something like this onehttps://www.ebay.com/itm/TQFP48-QFP48-Auf-DIP48-Programmiereradapter-SA248-Clamshell-Prufbuchse-New-Ic-ti/232310962488is more expensive, but will be easier to place on a breadboard.

author: kripton2035
author_rank: Super Contributor
timestamp: July 24, 2020, 06:36:58 am
content: you can also make your own board as stated earlier in this thread. if you need more than one this is the cheapest option.

author: kripton2035
author_rank: Super Contributor
timestamp: July 24, 2020, 06:41:53 am
content: and finally the one I was searching for at first :https://www.adafruit.com/product/1377$6 for 3 items.

author: jnewcomb
author_rank: Newbie
timestamp: January 29, 2022, 05:04:04 pm
content: To avoid the 'whole bunch of wires' situation, I created this board that includes a prototype area for housekeeping and application.It was featured on the mailbaghttps://youtu.be/Ayj65iqD00Q?t=1657https://www.ebay.co.uk/itm/2pcs-LQFP-QFP-TQFP-QFN-MLF-32-48-pin-0-5mm-pitch-STRIPBOARD-Adaptor-PCB-Breakout/275027625585Good tutorial and images can be found here:https://www.elektroda.com/rtvforum/topic3853189.htmlThe schematic for each pin is as follows:

author: PKTKS
author_rank: Super Contributor
timestamp: January 30, 2022, 08:40:49 am
content: Quote from: kripton2035 on July 24, 2020, 06:41:53 amBeen there couple of times...Alas SMD stuff requires a full box of these boards so you can live with smd...BE WARNED THAT UNLIKE DIP QFP AND QFN HAVE DIFFERENT PINOUTS!!!So even using the breakouts for qfp or qfn you CAN NOT directly plug as DIP..Paul