-1OA12OA13VSA4OA25OA26OA17OA18BRA9OA210OA211SRA125VOUT13SDO14SDI15SCK16GND17CSN18ENN19-20CLK21SRB22OB223OB224BRB25OB126OB127OB228OB229VSB30OB131OB132-33-34VHS35VS36TST_ANA37SG_TST38GND39VCC_IO40DIR41STEP42TST_MODE43GND44