Other things
H-Bridge chips
| Chip | Manufacturer | Max. current | Voltage range | Internal clamping diodes |
Number of motors | Price at Digikey |
| L293D | SGS-THOMSON | 600mA | 4.5 - 36 | yes | 2 | $2.78 |
| L293 | Texas Instruments | 1A | no | 2 | $2.78 | |
| L298 | SGS-THOMSON | 4A | no | 2 | $5.47 | |
| SN754410 | Texas Instruments | 1A | 4.5 - 36 | yes | 4 | $2.45 |
| LMD18200 | National | 3A | 12 - 55 | yes | 1 | $15.26 |