5Pcs Througn Hole L297 DIP 20PIN IC Driving Chips fit for Step Motor Drivers Product name: L297 Stmicroelectronics; output current: 10mA; supply power: 4.75~7V; package: DIP-20 channel: 4; pin no: 20; working temp: -40C ~ +150C; weight: 16g Package content: 5 x Driver Chip;;