Status: | Active |
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Series: | - |
RoHS: | Unknown |
The KSZ8091 is a single-supply 10Base-T/100Base-TX Ethernet physical-layer transceiver for transmission and reception of data over standard CAT-5 unshielded twisted pair (UTP) cable. The KSZ8091 is a highly-integrated PHY solution. It reduces board cost and simplifies board layout by using on-chip termination resistors for the differential pairs, integrating a low-noise regulator to supply the 1.2V core and by offering a flexible 1.8/2.5/3.3V digital I/O interface.
The KSZ8091MNX and KSZ8091MLX offer the Media Independent Interface (MII), while the the KSZ8091RNx offer the Reduced Media Independent Interface (RMII) for direct connection with MII/RMII-compliant Ethernet MAC processors and switches.
Wake-on-LAN (WOL) provides a mechanism for the KSZ8091 to wake up a system that is in standby power mode. The KSZ8091 provides diagnostic features to facilitate system bring-up and debugging in production testing and in product deployment. Parametric NAND tree support enables fault detection between KSZ8091 I/Os and the board. Microchip's LinkMD® TDR-based cable diagnostics identify faulty copper cabling.
The KSZ8091RNA and KSZ8091RND are available in a 24-pin (4mm x 4mm) QFN package. The KSZ8091MNX and KSZ8091RNB are available in a 32-pin, lead-free QFN packages. The KSZ8091MLX is available in a 48-pin (7mm x 7mm) LQFP package.
Microchip's complimentary and confidential LANCheck® online design review service is available for customers who have selected our products for their application design-in. The LANCheck online design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account.
No distributors results available
Single-chip 10Base-T/100Base-TX IEEE 802.3 compliant Ethernet transceiver |
Wake-on-LAN (WOL) support with either magic packet, link status change, or robust custom-packet detection |
Power-down and power-saving modes |
MII interface support (KSZ8091MNX, KSZ8091MLX) |
RMII v1.2 interface support with a 50MHz reference clock output to MAC and an option to input a 50MHz reference clock (KSZ8091RNB) |
Back-to-back mode support for a 100Mbps copper repeater |
MDC/MDIO management interface for PHY register configuration |
Programmable interrupt output |
LED outputs for link and activity status indication, plus speed indication for KSZ8091RNB |
On-chip termination resistors for the differential pairs |
Baseline wander correction |
HP Auto MDI/MDI-X to reliably detect and correct straight-through and crossover cable connections with disable and enable option |
Auto-negotiation to automatically select the highest link-up speed (10/100Mbps) and duplex (half/full) |
LinkMD® TDR-based cable diagnostics to identify faulty copper cabling |
Parametric NAND Tree support for fault detection between chip I/Os and the board |
Loopback modes for diagnostics |
Single 3.3V power supply with VDD I/O options for 1.8V, 2.5V, or 3.3V |
Built-in 1.2V regulator for core |
Available in 24-pin (4mm x 4mm) QFN, 32-pin (5mm x 5mm) QFN and 48-pin (7mm x 7mm) LQFP packages |
Data Sheets |
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KSZ8091MNX/RNB - 10Base-T/100Base-TX PHY |
10BASE-T/100BASE-TX PHY with RMII and EEE Support |
Board Design Files |
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KSZ8091 IBIS |
Supporting Collateral |
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KSZ8081_8091MNX_v1.2_DP.zip |
KSZ8081_8091RNB_v1.2_DP.zip |
KSZ8081_8091RNB_v1.3_DP.zip |
KSZ8081_8091MNX_v1.3_DP.zip |
Where can I find additional details, specifications and documents for a KSZ8091?
Additional datasheets, footprints and schematics for KSZ8091 are listed on our Part Details page. You can also find images and similar parts to KSZ8091 on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for KSZ8091 on our Product Comparison page. Access via the 'View Pricing & Stock' button to view KSZ8091 price breaks, MOQs, lead times, inventory and SKUs from distributors.
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Is the KSZ8091 RoHS compliant?
This part has not been flagged as RoHS Compliant.
Which authorised distributors for KSZ8091 have stock available?
There is no stock from authorised distributors for KSZ8091.
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