| Part Number | ISL22446UFRT20Z | ISL22446WFRT20Z | 
|---|---|---|
| Manufacturer | Renesas Electronics America Inc | Renesas Electronics America Inc | 
| Category | Data Acquisition - Digital Potentiometers | Data Acquisition - Digital Potentiometers | 
|   |   | |
| Product Status | Obsolete | Obsolete | 
| Taper | Linear | Linear | 
| Configuration | Potentiometer | Potentiometer | 
| Number of Circuits | 4 | 4 | 
| Number of Taps | 128 | 128 | 
| Resistance (Ohms) | 50k | 10k | 
| Interface | SPI | SPI | 
| Memory Type | Non-Volatile | Non-Volatile | 
| Voltage - Supply | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 
| Features | - | - | 
| Tolerance | ±20% | ±20% | 
| Temperature Coefficient (Typ) | ±80ppm/°C | ±50ppm/°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Supplier Device Package | 20-TQFN (4x4) | 20-TQFN (4x4) | 
| Package / Case | 20-WFQFN Exposed Pad | 20-WFQFN Exposed Pad | 
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C | 
| Resistance - Wiper (Ohms) (Typ) | 70 | 70 |