Another decapped IC! This one is an ST L6219 750mA stepper motor driver. The control logic is all at the bottom of the die, with the high current H-Bridge transistors at the top.
![L6219 Die](http://www.experimental-engineering.co.uk/wp-content/uploads/2017/02/L6219_001-L6219_079_fused-262x300.png)
Another decapped IC! This one is an ST L6219 750mA stepper motor driver. The control logic is all at the bottom of the die, with the high current H-Bridge transistors at the top.