Device Overview
Designed as a stand-alone 10/100BASE-T Ethernet controller with integrated MAC and PHY, Microchip Technology ENC424J600-I/PT uses the TQFP-44 package. Selection of this exact part is driven primarily by Device Function (stand-alone 10/100BASE-T Ethernet controller with integrated MAC and PHY), Ethernet Speed (10/100 Mbps), Host Interfaces (SPI and 8-bit multiplexed parallel).
Selection-Critical Data
| Parameter | Confirmed Data | Why It Matters |
|---|---|---|
| Device Function | stand-alone 10/100BASE-T Ethernet controller with integrated MAC and PHY | Defines the device function or architecture that a compatible replacement must preserve before secondary ratings are compared. |
| Ethernet Speed | 10/100 Mbps | Defines Ethernet PHY/link-rate compatibility with the network and host-side interface. |
| Host Interfaces | SPI and 8-bit multiplexed parallel | Defines the documented control or communication path that must remain compatible with the host and surrounding peripherals. |
| Packet Buffer | 24 Kbyte (TX/RX RAM) | Defines functional logic or signal-routing behavior; a substitute must preserve the required truth table, direction and control-state behavior. |
| Spi Data Rate | 14 Mbit/s | Defines the documented control or communication path that must remain compatible with the host and surrounding peripherals. |
| Security Engine | hardware modular exponentiation up to 1024-bit operands | Defines security partitioning, authentication/encryption or key-management behavior that must remain compatible with the system security design. |
| Exact Package | TQFP-44 | Determines PCB footprint, pinout, mechanical assembly and orderable-variant compatibility. |
Logic and Interface Selection Notes
At stand-alone 10/100BASE-T Ethernet controller with integrated MAC and PHY, the device function defines the device function or architecture that a compatible replacement must preserve before secondary ratings are compared.
Ethernet Speed is 10/100 Mbps. Defines Ethernet PHY/link-rate compatibility with the network and host-side interface. SPI and 8-bit multiplexed parallel is the stated host interfaces value. Defines the documented control or communication path that must remain compatible with the host and surrounding peripherals.
For exact package, TQFP-44 is the approved value. Determines PCB footprint, pinout, mechanical assembly and orderable-variant compatibility.
24 Kbyte is the stated packet buffer value. Defines functional logic or signal-routing behavior; a substitute must preserve the required truth table, direction and control-state behavior. Technical condition: TX/RX RAM. 14 Mbit/s is the stated spi data rate value. Defines the documented control or communication path that must remain compatible with the host and surrounding peripherals.
At hardware modular exponentiation up to 1024-bit operands, the security engine defines security partitioning, authentication/encryption or key-management behavior that must remain compatible with the system security design.
