KSZ8873MLL

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KSZ8873MLL

IC ETHERNET SWITCH 3PORT 64-LQFP

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Specifications

Supplier Microchip Technology
Package Tray
ProductStatus Active
Protocol Ethernet
Function Switch
Interface I²C, SPI
Standards 10/100 Base-T/TX PHY
Voltage-Supply 1.8V, 2.5V, 3.3V
Current-Supply 115mA
OperatingTemperature 0°C ~ 70°C
Package/Case 64-LQFP

Overview

Description

KSZ8873MLL is a single-port 10/100 Mbps Ethernet PHY transceiver from Microchip (Micrel). It provides the physical layer for an Ethernet link and connects to an external MAC via standard MAC interfaces.
Key points:
- IEEE 802.3 10/100BASE-T, auto-negotiation, supports full- and half-duplex operation
- MAC interface options: MII or RMII
- LED status outputs and typical PHY-side features (cable interface, encoding/decoding)
- Offered in a compact MLL package suitable for embedded designs
Common uses:
- Embedded microcontroller-based Ethernet designs (routers, industrial controllers, IoT devices)
Resources:
- Datasheet and application notes from Microchip/Micrel for pinout, electrical specs, timing, and reference designs. If you need more specifics (pinout, power, timing), I can summarize those as well.

Features

Here are the key features of KSZ8873MLL:
- 3-port 10/100 Mbps Ethernet switch with integrated MAC/PHY on each port
- Non-blocking, store-and-forward switching
- IEEE 802.1Q VLAN support (port-based and tagged)
- IEEE 802.1p QoS with multiple priority levels (typical 4-queue scheme)
- MAC address learning with a large CAM (typically up to several thousand addresses) and aging
- Auto MDI/MDIX on all ports; auto-negotiation for 10/100 Mbps; full/half‑duplex support
- Flow control: 802.3x pause (full-duplex) and backpressure (half-duplex)
- Management interface: MDIO/SMI for PHY management and a host CPU interface for register access
- Frame filtering and storm-control facilities to protect broadcast/m multicast traffic
Note: This is a concise feature summary; exact parameters (e.g., exact MAC table size, QoS details) may vary by revision and package.

Package

KSZ8873MLL is available in an MLL package, i.e., Molded Leadless Leadframe package.

Pinout

- Pin count: 28 pins (MLL package)
- Function: 3-port 10/100BASE-TX Ethernet switch/PHY (three PHYs with a switch fabric) designed to connect to a host MAC via MII/RMII and to RJ-45 ports through external magnetics.

Manufacturer

Manufacturer: Microchip Technology (formerly Micrel Semiconductor).
What kind of company: A multinational American semiconductor company that designs and manufactures integrated circuits, including microcontrollers, analog/mixed-signal ICs, memory, and networking ICs like Ethernet PHYs and switches.

Application

KSZ8873MLL is a 10/100BASE-T Ethernet PHY with MII/RMII interface. Applications: embedded Ethernet for microcontrollers; small switches/routers/gateways; network printers and IP cameras; industrial automation and PLC gateways; IoT edge devices and smart meters.

Equivalent

Direct drop-in equivalents do not exist. KSZ8873MLL is a unique 3-port 10/100 Ethernet switch with integrated MAC/PHY. Closest cross-references are other Microchip KSZ-series 10/100 switches (e.g., KSZ8873 variants) and similar 3-port Ethernet switches from Realtek (RTL83xx) or TI (DP83xx) families. For an exact replacement, compare datasheets and verify pinout, electricals, and features.

Shipping

Shipping MethodsWe

offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.


Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

Payment Methods

The Payment term is 100% Prepaid.

Currently, we only accept the below payment methods:

1. PayPal

2. Credit/ Debit Card

3. Wire Transfer

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