| PartNumber | MCP45HV51-502E/ST | MCP45HV51-502E/MQ | MCP45HV51-503E/MQ |
| Description | IC DGTL POT 5K 256TAPS 14TSSOP | IC DGTL POT 5K 256TAPS 20QFN | IC DGTL POT 50K 256TAPS 20QFN |
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology |
| Product Category | Data Acquisition - Digital Potentiometers | Data Acquisition - Digital Potentiometers | Data Acquisition - Digital Potentiometers |
| Series | - | - | - |
| Packaging | Tube Alternate Packaging | Tube Alternate Packaging | Tube Alternate Packaging |
| Package Case | 14-TSSOP (0.173", 4.40mm Width) | 20-VQFN Exposed Pad | 20-VQFN Exposed Pad |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Features | Selectable Address | Selectable Address | Selectable Address |
| Interface | I2C | I2C | I2C |
| Voltage Supply | 1.8 V ~ 5.5 V, 10 V ~ 36 V | 1.8 V ~ 5.5 V, 10 V ~ 36 V | 1.8 V ~ 5.5 V, 10 V ~ 36 V |
| Supplier Device Package | 14-TSSOP | 20-QFN (5x5) | 20-QFN (5x5) |
| Number of Circuits | 1 | 1 | 1 |
| Taper | Logarithmic | Logarithmic | Logarithmic |
| Configuration | Potentiometer | Potentiometer | Potentiometer |
| Number of Taps | 256 | 256 | 256 |
| Resistance Ohms | 5k | 5k | 50k |
| Memory Type | Volatile | Volatile | Volatile |
| Tolerance | ±20% | ±20% | ±20% |
| Temperature Coefficient Typ | 50 ppm/°C | 50 ppm/°C | 50 ppm/°C |
| Resistance Wiper Ohms Typ | 75 | 75 | 75 |