Datasheet for the STK672-010, an early part in the STK672 series of hybrid stepper motor drivers attributed to Sanyo, stored as a 325 KB PDF.

PDF datasheet for the STK672-050, one of the STK672 series of thick-film hybrid stepper motor driver ICs associated with Sanyo.

STK672-040 datasheet, a 208 KB PDF for a hybrid stepper motor driver from the STK672 line made by Sanyo.

Short 100 KB PDF datasheet for the STK465, a thick-film hybrid audio power amplifier module from the Sanyo STK range.

Reference sheet for the STK672-020 stepper motor driver hybrid IC from the Sanyo STK672 family, supplied as a 327 KB PDF.