2008-02-14 03:07 PM
Suggestion STM32 in wider pitch pin pakages ? please vote ?
2011-05-17 03:23 AM
ok you all know STM32 exist in LQFP48-64-100
the pin width is 0.22mm and the spacing picth is 0.5mm this demands higher accuracy in PCB boards and assembly machines, this higher accuracy demand, cost a bit extra in production. so if ST will make STM32 in TQFP32-64-100 with pin width 0.35mm and spacing picth 0.8mm we could: 1 save money in production, 2 get higher assembly yeld on low toll. manufacturing 3 hand rework and easy fast prototyping 4 we could use lower cost PCB tollerances The cost of STM32 are in the range of kicking even the cheapest 8 bits out of our boards in my company ! the only problem we have is the pitch. So people, let the people talk!! please put in your feelings about this ?? YES / NO / Good idea / Bad Idea / why ?2011-05-17 03:23 AM
2011-05-17 03:23 AM
I am very happy with the pitch of the 48 pin package. I tend to design small boards (eg. 30mm by 30mm) so I wouldn't want a bigger package. I hand soldered the 48 pin package on my board and I'm just an average solderer. My brother who has had training in soldering techniques can solder a whole side of these pins in a single swipe (using a good flux and a blob of solder on a broad tip). Most modern production equipment should have no problems with this pitch.