cancel
Showing results for 
Search instead for 
Did you mean: 

Which is the Smallest processor that has Double Precision Floating Point ?

T J
Lead
 
1 ACCEPTED SOLUTION

Accepted Solutions
TDK
Guru

Probably the STM32H7A/H7B WLCSP132 chips. (4.57 X 4.37 mm)

If you feel a post has answered your question, please click "Accept as Solution".

View solution in original post

5 REPLIES 5
TDK
Guru

Probably the STM32H7A/H7B WLCSP132 chips. (4.57 X 4.37 mm)

If you feel a post has answered your question, please click "Accept as Solution".
T J
Lead

still 10x10mm, was hoping to get a smaller package.

the L412 QFN-48 is 5x5 but only single precision..

Danish1
Lead II

One thing the OP didn't make clear was whether it is acceptable to do the floating-point in software.

All the compilers provide software double-precision floating-point where it's needed. It will increase execution-time (hence power-consumption), and use up more FLASH. But often this is a good overall solution.

But even the smallest stm32l0 can do it. A quick check found stm32l052T8 is 2.61 x 2.88 mm but I don't know if that's the smallest.

Yes, we need to shutdown quick, so hardware is the best answer.
In the end, I Had to compromise, with the L433-48pin, will have to calculate the double from the Single Floating Point Hardware.