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KSZ8842-16MQL

Manufacturer: MICREL, MICREL

2-Port Ethernet Switch with Non-PCI Interface

Partnumber Manufacturer Quantity Availability
KSZ8842-16MQL,KSZ884216MQL MICREL, MICREL 1151 In Stock

Description and Introduction

2-Port Ethernet Switch with Non-PCI Interface The KSZ8842-16MQL is a highly integrated Ethernet switch controller manufactured by MICREL (now part of Microchip Technology). Below are the factual specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** MICREL (now Microchip Technology)  
- **Part Number:** KSZ8842-16MQL  
- **Type:** 2-Port + 1-Port (or 2-Port) Ethernet Switch Controller  
- **Interface:** MII/RMII for MAC, MII for PHY  
- **Data Rate:** 10/100 Mbps per port  
- **Package:** 128-pin LQFP (Low-Profile Quad Flat Package)  
- **Operating Voltage:** 3.3V (I/O), 1.8V (Core)  
- **Operating Temperature:** Commercial (0°C to 70°C) or Industrial (-40°C to 85°C) depending on variant  

### **Descriptions:**  
The KSZ8842-16MQL is a cost-effective, low-power, and highly integrated Ethernet switch controller designed for embedded networking applications. It supports two or three Ethernet ports (depending on configuration) with built-in PHY transceivers and an integrated switch fabric.  

### **Features:**  
- **Integrated Switch Fabric:** Supports store-and-forward switching with auto-negotiation.  
- **MAC & PHY Integration:** Includes two MACs and two PHYs (10/100 Mbps).  
- **MII/RMII Interface:** Supports connection to external processors or MACs.  
- **VLAN Support:** IEEE 802.1Q VLAN tagging capability.  
- **QoS (Quality of Service):** Supports priority queuing (802.1p).  
- **Low Power Consumption:** Optimized for energy-efficient applications.  
- **Auto-MDIX:** Automatic crossover detection for simplified cabling.  
- **LED Indicators:** Supports link/activity and speed status LEDs.  
- **Jumbo Frame Support:** Up to 2KB frame size.  
- **Management Interface:** Optional MIIM (MDC/MDIO) for PHY configuration.  

This information is based on MICREL's official documentation for the KSZ8842-16MQL. For exact details, refer to the datasheet from Microchip Technology.

Application Scenarios & Design Considerations

2-Port Ethernet Switch with Non-PCI Interface

Alternative Part Number

  • KSZ8851-16MLL --: Same Micron/Microchip KSZ Ethernet family with a 16-bit host interface, offering similar functionality for designs that can drop the second MAC port.
  • LAN9218-MT --: 16-bit parallel host interface Ethernet controller with comparable bus timing and integrated MAC/PHY, a common drop-in style alternative from the same vendor.
  • AX88796C --: 16-bit local bus Ethernet controller with integrated MAC/PHY, widely used as a functional substitute when the dual-port switch feature is not required.
  • KSZ8852-16MQL --: Same KSZ88xx family 2-port Ethernet switch with 16-bit host interface; Microchip now owns Micrel and this part is a close functional substitute with similar pinout and feature set.
  • KSZ8863-16MQL --: 3-port managed Ethernet switch with 16-bit interface from the same vendor family; offers comparable switching features and can replace the KSZ8842 in many designs with minor layout changes.
  • DP83816-16MQL --: Alternative 16-bit interface Ethernet switch/MAC solution from a different vendor series; suitable when a second-source option is needed, though pinout and firmware may require adaptation.
  • DP83849-16MQL --: Dual-port 10/100 Ethernet PHY/switch alternative from a different vendor series, providing similar dual-port Ethernet functionality for designs needing a second-source option.

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