Part Number	AMIS-30521 Datasheet
Manufacturer	AMI SEMICONDUCTOR
Overview	Table 2: Pin List and Description Name Pin DO 31 VDD 32 GND 1 DI 2 CLK 3 NXT 4 DIR 5 ERRB 6 SLA 7 CPN 9 CPP 10 VCP 11 CLR 12 CSB 13 VBB 14 MOTYP 15, 16 GND 17, 18 MOTYN 19, 20 MOTX. * * * * * * * * * * * * * Dual H-Bridge for 2-phase stepper motors Programmable peak-current up to 1.6A using a 5-bit current DAC On-chip current translator SPI interface Speed and load angle output Seven step modes from full-step up to 32 micro-steps Fully integrated current-sense PWM current contr.