KSZ8041TL/FTL 10Base-T/100Base-TX/100Base-FX Physical Layer Transceiver Data Sheet is a data sheet published by Micrel Inc. It introduces the features and characteristics of the company's KSZ8041TL/FTL product. The product is a single supply 10Base-T/100Base-TX physical layer transceiver, which provides MII/RMII/SMII interfaces and supports auto MDI/MDI-X function. It also supports Micrel LinkMD® TDR-based cable diagnostics.
The KSZ8041TL/FTL is a single‑supply Ethernet physical‑layer transceiver that supports 10Base‑T, 100Base‑TX and, for the FTL variant, 100Base‑FX fiber. It offers HP Auto MDI/MDI‑X, LinkMD® TDR‑based cable diagnostics, and programmable LED outputs for link, activity and speed indication. The device operates from a 3.3 V supply and includes a built‑in 1.8 V regulator for the core.
The transceiver is offered in a 48‑pin lead‑free TQFP package, with temperature ranges from –40 °C to 85 °C depending on the part number. Ordering information, pin configurations, timing diagrams and electrical characteristics are provided throughout the sheet, and additional documentation can be downloaded from Micrel’s website.
| Supply voltage | 3.3 V (single supply) |
|---|---|
| Core regulator voltage | 1.8 V |
| Package type | 48‑pin TQFP |
| Operating temperature range (KSZ8041TL) | 0 °C to 70 °C |
| Operating temperature range (KSZ8041TLI) | -40 °C to 85 °C |
| Fiber support | 100Base‑FX (KSZ8041FTL only) |
Yes, the KSZ8041FTL adds 100Base‑FX support for fiber and media‑converter applications.
Both parts are supplied in a 48‑pin lead‑free TQFP package.