Timeline for Is it easy to predict or get notified about obsolescence for DIP ICs?
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 25 at 9:03 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Dec 28, 2019 at 20:51 | comment | added | Marcus Müller | I'd say the ULN family has been obsolete since the early 90s, and the MCP3004 is a very niche chip that is mostly obsolete by the fact that its functionality is usually provided by something else. Their package has nothing to do with that. So, regarding your 2. point: no, it's not wise to start a design in 2020 with either part in DIP or any other package. | |
| Dec 28, 2019 at 20:50 | comment | added | Marcus Müller | I'd argue that the 1970's BJT drivers (ULN2803) have been obsolete for basically 25 years now; that doesn't mean you'll have problems buying them, just that there are comparably cheap parts that are better in literally every figure of merit to your application. I don't know the MCP3004, but that ADC is basically like the ADC in every modern low-to-midrange microcontroller you can find – Usually, if you have a microcontroller that has enough interface pins to talk to the MCP3004, you can get a better microcontroller with built-in ADC for less additional money than the MCP3004 will cost, so: | |
| Dec 28, 2019 at 12:23 | comment | added | Nyos | Batch size/planned number of devices is an important parameter. If you plan to manufacture a thousand units, you can buy them and stop worrying. I've worked at a place where my coworkers designed a device with an ARM chip no longer manufactured. When I questioned them, the answer was we had enough of them in stock. SMD has other advantages, can be placed by machine, takes less space, etc., also you can sometimes put SMD pads to a DIP place as well, and populate the one you have in stock. Apart from usage in breadboard/perfboard or sockets, I don't see any advantage in DIP. | |
| Dec 28, 2019 at 12:14 | history | edited | JRE | CC BY-SA 4.0 |
deleted 1 character in body
|
| Dec 28, 2019 at 11:59 | answer | added | Peter Smith | timeline score: 4 | |
| Dec 28, 2019 at 7:25 | comment | added | D.A.S. | If DK has no stock, but is "active", that's a bad sign. Chose another. | |
| Dec 28, 2019 at 7:14 | comment | added | D.A.S. | Digikey has the largest inventory and always indicates which status of every part. Distributors are responsible for notifying large customers. I would not be biased against DIPs where it makes sense. | |
| Dec 28, 2019 at 6:39 | comment | added | The Photon | It's been wise to consider SMD for new development since 1990 or so. But DIP hasn't gone obsolete either. | |
| Dec 28, 2019 at 6:02 | comment | added | DoxyLover | I think that it makes no sense to use non SMD ICs in a new professional design. If I were a customer and opened up the chassis to see DIPs, my reaction would be WTF! | |
| Dec 28, 2019 at 5:08 | history | asked | thewebjackal | CC BY-SA 4.0 |