| PartNumber | KSZ8721BLI | KSZ8721BLI-TR | KSZ8721BLIA4-TR |
| Description | Ethernet ICs 10/100 BASE-TX/FX Physical Layer Transceiver | Ethernet ICs 10/100 BASE-TX/FX Physical Layer Transceiver | IC TXRX ETHERNET 48LQFP |
| Manufacturer | Microchip | Microchip | Microchip Technology |
| Product Category | Ethernet ICs | Ethernet ICs | Interface - Drivers, Receivers, Transceivers |
| RoHS | Y | Y | - |
| Series | KSZ8721 | - | - |
| Product | Ethernet Transceivers | Ethernet Transceivers | - |
| Number of Transceivers | 1 Transceiver | 1 Transceiver | - |
| Data Rate | 10 Mb/s, 100 Mb/s | - | - |
| Operating Supply Voltage | 3.3 V | 3.3 V | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | LQFP-48 | LQFP-48 | - |
| Packaging | Tray | Reel | Tape & Reel (TR) |
| Brand | Microchip Technology / Micrel | Microchip Technology / Micrel | - |
| Supply Current Max | 151 mA | - | - |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | Ethernet ICs | Ethernet ICs | - |
| Standard | 10BASE-T, 100BASE-FX, 100BASE-TX | - | - |
| Factory Pack Quantity | 250 | 1000 | - |
| Subcategory | Communication & Networking ICs | Communication & Networking ICs | - |
| Supply Voltage Min | 2.5 V, 3.3 V | - | - |
| Unit Weight | 0.006409 oz | 0.006409 oz | - |
| Part # Aliases | - | KSZ8721BLI TR | - |
| Type | - | - | Transceiver |
| Package Case | - | - | 48-LQFP |
| Operating Temperature | - | - | -40°C ~ 85°C |
| Mounting Type | - | - | Surface Mount |
| Voltage Supply | - | - | 3 V ~ 3.6 V |
| Supplier Device Package | - | - | 48-LQFP (7x7) |
| Protocol | - | - | MII, RMII |
| Number of Drivers Receivers | - | - | 2016/1/1 |
| Duplex | - | - | Full |
| Receiver Hysteresis | - | - | - |