This part is a kind of semiconductor called 1334.

Function of this product has STEPPER MOTOR CONTROLLERS.

Manufacturers : STMicroelectronics

Image and pinout :

Some of the text within the PDF file :

L297 L297D STEPPER MOTOR CONTROLLERS NORMAL/WAWE DRIVE HALF/FULL STEP MODES CLOCKWISE/ANTICLOCKWISE DIRECTION SWITCHMODE LOAD CURRENT REGULATION PROGRAMMABLE LOAD CURRENT FEW EXTERNAL COMPONENTS RESET INPUT & HOME OUTPUT ENABLE INPUT DESCRIPTION The L297/A/D Stepper Motor Controller IC generates four phase drive signals for two phase bipolar and four phase unipolar step motors in microcomputer-controlled applications. The motor can be driven in half step, normal and wawe drive modes and on-chip PWM chopper circuits permit switchmode control of the current in the windings. A ABSOLUTE MAXIMUM RATINGS Symbol Vs Vi Ptot Tstg, Tj Supply voltage Input signals Total power dissipation (Tamb = 70°C) Storage and junction temperature Parameter Value 10 7 1 -40 to + 150 Unit V V W °C DIP20 SO20 O [ ... ]

1334 PDF Datasheet Download