| Pin | Name | Function |
|---|---|---|
| 1 | 1,2EN | Enable channel 1 (motor A) |
| 2 | 1A | Input 1 - motor A direction |
| 3 | 1Y | Output 1 - to motor A terminal |
| 4 | GND | Ground |
| 5 | GND | Ground |
| 6 | 2Y | Output 2 - to motor A terminal |
| 7 | 2A | Input 2 - motor A direction |
| 8 | VCC2 | Motor supply voltage |
| 9 | 3,4EN | Enable channel 2 (motor B) |
| 10 | 3A | Input 3 - motor B direction |
| 11 | 3Y | Output 3 - to motor B terminal |
| 12 | GND | Ground |
| 13 | GND | Ground |
| 14 | 4Y | Output 4 - to motor B terminal |
| 15 | 4A | Input 4 - motor B direction |
| 16 | VCC1 | Logic supply voltage, 5V |
Summary
Dual H-bridge motor driver IC. Drives two DC motors (or one stepper) with built-in flyback diodes — lighter-duty, lower-current alternative to the L298N, popular for small robot chassis kits.
- Motor supply (Vcc2): 4.5V - 36V
- Logic supply (Vcc1): 5V
- Max output current: 600mA per channel (1.2A peak)
- Channels: Dual H-bridge (2 DC motors or 1 stepper)