I am new to electronic prototyping and had a few questions.
I need to control 132 LEDs individually. I want to make 3 rows ( 2 rows of 60 and 1 row of 12) I think i can matrix them but i would still need 63 outputs (3 high, 60 long).
I don't want to use 8 different shift registers.
Are there any 32 bit or 64 bit led drivers(or shift registers, not really sure what there are called)
And where can i buy them.
Any help is appreciated .
Best Answer
There is actually at least one 132-LED driver IC, the AS1130 132 LED driver with PWM ($2.99). This precisely matches your application requirement at least on the LED count.
AMS has a versatile set of LED drivers: For instance their 144 LED driver (AS1119) with its integrated charge pump for driving LEDs from a power rail lower than the forward voltage of your LED, might be of interest for your application.
To answer your specific questions:
The challenge you might face is on ready-to-use library support on your microcontroller or platform of choice, for the various LED drivers.
For this reason, my go-to part for similar requirements has been the merely 16-channel Texas Instruments TLC5940, in cascaded arrays, simply because libraries and general public-friendly write-ups exist on the web for it, for almost any microcontroller platform I have wanted to use with them - including for the Arduino platform.