The L297/1 is a dual full-bridge driver IC manufactured by STMicroelectronics. It is designed to drive two DC motors or one bipolar stepper motor. It is a 20-pin DIP package. Description: The L297/1 is a dual full-bridge driver IC designed to drive two DC motors or one bipolar stepper motor. It has two independent full-bridge drivers with separate logic and power supply pins. It also has a built-in thermal shutdown circuit and overcurrent protection. Features: Dual full-bridge drivers Separate logic and power supply pins Built-in thermal shutdown circuit Overcurrent protection 20-pin DIP package Applications: Robotics Automated machinery Industrial control systems Motor control systems(For reference only)
https://www.utsource.net/itm/p/831425.html