| TC642 | In Production | | $1.02 | Fan Manager | Depends on external thermistor | Depends on external thermistor | -40 - +85 | +3.0 - +5.5 | 1000 | Yes | No | No | Yes | No | No | Yes | 8/MSOP, 8/PDIP, 8/SOIC 150mil |
| TC642B | In Production | | $0.84 | Fan Manager | Depends on external thermistor | Depends on external thermistor | -40 - +85 | +3.0 - +5.5 | 400 | Yes | No | No | Yes | No | Yes | Yes | 8/MSOP, 8/PDIP, 8/SOIC 150mil |
| TC646 | In Production | | $1.02 | Fan Manager | Depends on external thermistor | Depends on external thermistor | -40 - +85 | +3.0 - +5.5 | 1000 | Yes | No | No | Yes | No | Yes | Yes | 8/MSOP, 8/PDIP, 8/SOIC 150mil |
| TC646B | In Production | | $0.84 | Fan Manager | Depends on external thermistor | Depends on external thermistor | -40 - +85 | +3.0 - +5.5 | 400 | Yes | No | No | Yes | No | Yes | Yes | 8/MSOP, 8/PDIP, 8/SOIC 150mil |
| TC647 | In Production | | $0.94 | Fan Manager | Depends on external thermistor | Depends on external thermistor | -40 - +85 | +3.0 - +5.5 | 1000 | Yes | No | No | Yes | No | No | No | 8/MSOP, 8/PDIP, 8/SOIC 150mil |
| TC647B | In Production | | $0.84 | Fan Manager | Depends on external thermistor | Depends on external thermistor | -40 - +85 | +3.0 - +5.5 | 400 | Yes | No | No | Yes | No | Yes | No | 8/MSOP, 8/PDIP, 8/SOIC 150mil |
| TC648 | In Production | | $0.85 | Fan Manager | Depends on external thermistor | Depends on external thermistor | -40 - +85 | +3.0 - +5.5 | 1000 | Yes | No | No | No | No | Yes | Yes | 8/MSOP, 8/PDIP, 8/SOIC 150mil |
| TC648B | In Production | | $0.79 | Fan Manager | Depends on External Thermistor | Depends on External Thermistor | -40 - +85 | +3.0 - +5.5 | 400 | Yes | No | No | No | No | Yes | Yes | 8/MSOP, 8/PDIP, 8/SOIC 150mil |
| TC649 | In Production | | $0.94 | Fan Manager | Depends on external thermistor | Depends on external thermistor | -40 - +85 | +3.0 - +5.5 | 1000 | No | Yes | No | Yes | No | Yes | No | 8/MSOP, 8/PDIP, 8/SOIC 150mil |
| TC649B | In Production | | $0.84 | Fan Manager | Depends on external thermistor | Depends on external thermistor | -40 - +85 | +3.0 - +5.5 | 400 | Yes | No | No | Yes | No | Yes | Yes | 8/MSOP, 8/PDIP, 8/SOIC 150mil |
| TC650 | In Production | | $1.26 | Fan Manager | 1 | 3 | -40 - +125 | +2.8 - +5.5 | 90 | No | Yes | No | No | No | No | Yes | 8/MSOP |
| TC651 | In Production | | $1.26 | Fan Manager | 1 | 3 | -40 - +125 | +2.8 - +5.5 | 90 | No | Yes | No | No | No | Yes | Yes | 8/MSOP |
| TC652 | In Production | | $1.36 | Fan Manager | 1 | 3 | -40 - +125 | +2.8 - +5.5 | 90 | No | Yes | No | Yes | No | No | Yes | 8/MSOP |
| TC653 | In Production | | $1.36 | Fan Manager | 1 | 3 | -40 - 125 | +2.8 - +5.5 | 90 | No | Yes | No | Yes | No | Yes | Yes | 8/MSOP |
| TC654 | In Production | | $1.43 | Dual SMBus Fan Manager | Depends on external thermistor | Depends on external thermistor | -40 - +85 | +3.0 - +5.5 | 320 | Yes | No | Yes | Yes | Yes | No | No | 10/MSOP |
| TC655 | In Production | | $1.53 | Dual SMBus Fan Manager | Depends on external thermistor | Depends on external thermistor | -40 - +85 | +3.0 - +5.5 | 320 | Yes | No | Yes | Yes | Yes | No | No | 10/MSOP |
| TC664 | In Production | | $1.27 | Single SMBus Fan Manager | Depends on external thermistor | Depends on external thermistor | -40 - +85 | +3.0 - +5.5 | 320 | Yes | No | Yes | Yes | Yes | No | No | 10/MSOP |
| TC665 | In Production | | $1.31 | Single SMBus Fan Manager | Depends on external thermistor | Depends on external thermistor | -40 - +85 | +3.0 - +5.5 | 320 | Yes | No | Yes | Yes | Yes | No | Yes | 10/MSOP |