TMC249 / TMC249A DATA SHEET (V2.10 / 2011-Aug-10) .
TMC2490A - Multistandard Digital Video Encoder
TMC249A - SPI or Classic Analog Interface Stepper
TMC2491A - Multistandard Digital Video Encoder
TMC2491A - Digital Video Encoder
TMC249A - High current microstep stepper motor driver
TMC249 - High current microstep stepper motor driver