Device Overview
LAN9252/PT is a Microchip Technology 2/3-port EtherCAT slave controller with dual integrated Ethernet PHYs in a TQFP-64-EP package. Selection of this exact part is driven primarily by Device Function (2/3-port EtherCAT slave controller with dual integrated Ethernet PHYs), Ethernet Speed (100 Mbps), Dpram (4 Kbyte).
Selection-Critical Data
| Parameter | Confirmed Data | Why It Matters |
|---|---|---|
| Device Function | 2/3-port EtherCAT slave controller with dual integrated Ethernet PHYs | Defines the device function or architecture that a compatible replacement must preserve before secondary ratings are compared. |
| Ethernet Speed | 100 Mbps (integrated PHYs) | Defines Ethernet PHY/link-rate compatibility with the network and host-side interface. |
| Dpram | 4 Kbyte | Defines internal dual-port buffer memory available for frame/mailbox exchange and therefore buffering capacity between interfaces. |
| Host Interfaces | 8/16-bit HBI, SPI/SQI and digital I/O modes | Defines the documented control or communication path that must remain compatible with the host and surrounding peripherals. |
| Exact Package | TQFP-64-EP | Determines PCB footprint, pinout, mechanical assembly and orderable-variant compatibility. |
| Fmmu Count | 3 | Defines a selection-critical engineering characteristic that a compatible substitute must preserve under the stated conditions. |
| Sync Manager Count | 4 | Defines a selection-critical engineering characteristic that a compatible substitute must preserve under the stated conditions. |
Logic and Interface Selection Notes
At 2/3-port EtherCAT slave controller with dual integrated Ethernet PHYs, the device function defines the device function or architecture that a compatible replacement must preserve before secondary ratings are compared.
For ethernet speed, 100 Mbps is the approved value. Defines Ethernet PHY/link-rate compatibility with the network and host-side interface. Technical condition: integrated PHYs. Host Interfaces is 8/16-bit HBI, SPI/SQI and digital I/O modes. Defines the documented control or communication path that must remain compatible with the host and surrounding peripherals.
Exact Package is TQFP-64-EP. Determines PCB footprint, pinout, mechanical assembly and orderable-variant compatibility.
Dpram is 4 Kbyte. Defines internal dual-port buffer memory available for frame/mailbox exchange and therefore buffering capacity between interfaces. At 3, the fmmu count defines a selection-critical engineering characteristic that a compatible substitute must preserve under the stated conditions.
For sync manager count, 4 is the approved value. Defines a selection-critical engineering characteristic that a compatible substitute must preserve under the stated conditions.
