Single-Port Ethernet MAC Controller with PCI Interface The KSZ8841-PMQLI is a highly integrated single-chip Ethernet switch manufactured by **MICREL** (now part of Microchip Technology). Below are its key specifications, descriptions, and features based on factual information:
### **Specifications:**
- **Manufacturer:** MICREL (Microchip Technology)
- **Part Number:** KSZ8841-PMQLI
- **Type:** 2-Port Ethernet Switch with Integrated PHYs
- **Interface:** MII/RMII for MAC, 10/100 Mbps PHYs
- **Data Rate:** 10/100 Mbps per port
- **Supply Voltage:** 3.3V (I/O), 1.8V (Core)
- **Operating Temperature:** Commercial (0°C to +70°C)
- **Package:** 128-pin LQFP (PMQLI)
### **Descriptions:**
- The KSZ8841-PMQLI is a cost-effective, low-power, and compact Ethernet switch solution.
- It integrates two 10/100 Mbps Ethernet PHYs with an embedded Layer 2 switch engine.
- Designed for applications requiring small-port-count switching, such as industrial, embedded, and networking devices.
### **Features:**
- **Integrated Switch & PHYs:** Two 10/100BASE-T/TX PHYs with auto-negotiation and auto-MDIX.
- **Layer 2 Switching:** Supports VLAN, QoS, and IGMP snooping.
- **MAC Interfaces:** MII (Media Independent Interface) and RMII (Reduced MII) for host connectivity.
- **Low Power Consumption:** Optimized for energy-efficient operation.
- **Advanced Management:** Supports EEPROM configuration and optional serial EEPROM for boot settings.
- **Flow Control:** IEEE 802.3x flow control and backpressure.
- **Jumbo Frame Support:** Up to 2KB frame size.
This information is strictly based on the manufacturer's datasheet and technical documentation.
