| Part Number | KSZ8051RNL-TR | KSZ8031RNL-TR | 
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | 
| Category | Interface - Drivers, Receivers, Transceivers | Interface - Drivers, Receivers, Transceivers | 
| 
                             | 
                                                        
                             | 
                                                    |
| Product Status | Obsolete | Obsolete | 
| Type | Transceiver | Transceiver | 
| Protocol | RMII | RMII | 
| Number of Drivers/Receivers | 1/1 | 1/1 | 
| Duplex | Full | Full | 
| Receiver Hysteresis | - | - | 
| Data Rate | - | - | 
| Voltage - Supply | 1.8V, 2.5V, 3.3V | 1.8V, 2.5V, 3.3V | 
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 32-VFQFN Exposed Pad | 24-VFQFN Exposed Pad | 
| Supplier Device Package | 32-QFN-EP (5x5) | 24-QFN (4x4) |