Overview
The KSZ8851-16MLL-TR, produced by Microchip Technology, is a single-port Ethernet MAC and PHY controller designed to provide high-performance Ethernet connectivity for traditional embedded systems. This device is particularly suited for applications requiring high throughput and is available in a 48-pin, lead-free LQFP (7mm x 7mm) package. It supports both 8-bit and 16-bit generic host processor interfaces, making it versatile for various system architectures. The KSZ8851-16MLL-TR is fully compliant with IEEE 802.3 standards and offers features such as LinkMD® cable diagnostics and HP Auto-MDIX, enhancing its usability and reliability in networked environments.
Key Specifications
| Parameter | Description |
|---|---|
| Package Type | 48-pin LQFP (7mm x 7mm) |
| Host Interface | 8-bit or 16-bit generic processor interface |
| Power Supply | Single 3.3V with options for 1.8V, 2.5V, or 3.3V VDD I/O |
| Temperature Range | Commercial: 0°C to +70°C, Industrial: –40°C to +85°C |
| Ethernet Standards | IEEE 802.3/802.3u compliant, supports 10BASE-T/100BASE-TX |
| Buffer Memory | 18KB (6KB TX, 12KB RX) |
| Flow Control | IEEE 802.3x full-duplex flow control and half-duplex backpressure collision flow control |
| Cable Diagnostics | LinkMD® feature for cable length and condition detection |
Key Features
- Integrated MAC and PHY Ethernet Controller
- Supports 10BASE-T/100BASE-TX and IEEE 802.3x flow control
- Flexible 8-bit and 16-bit generic host processor interfaces
- LinkMD® cable diagnostics for detecting cable length and conditions
- HP Auto-MDIX for automatic detection of straight or crossover cables
- Low-power CMOS design with energy detect mode and soft power-down mode
- Comprehensive LED indicators for link, activity, and 10/100 speed
- Built-in integrated 3.3V or 2.5V to 1.8V low noise regulator (LDO) for core and analog blocks
Applications
The KSZ8851-16MLL-TR is ideal for various embedded system applications that require high-performance Ethernet connectivity. These include industrial automation, automotive systems, medical devices, and other networked embedded systems where reliable and efficient Ethernet communication is crucial. Its industrial and automotive versions (KSZ8851-16MLLI and KSZ8851-16MLLU) make it suitable for harsh environment applications as well.
Q & A
- What is the package type of the KSZ8851-16MLL-TR?
The KSZ8851-16MLL-TR comes in a 48-pin, lead-free LQFP (7mm x 7mm) package. - What host interfaces does the KSZ8851-16MLL-TR support?
The device supports both 8-bit and 16-bit generic host processor interfaces. - What are the power supply options for the KSZ8851-16MLL-TR?
The device operates on a single 3.3V power supply with options for 1.8V, 2.5V, or 3.3V VDD I/O. - Is the KSZ8851-16MLL-TR compliant with any Ethernet standards?
Yes, it is fully compliant with IEEE 802.3/802.3u standards and supports 10BASE-T/100BASE-TX. - What is the LinkMD® feature in the KSZ8851-16MLL-TR?
The LinkMD® feature allows for cable length and condition detection, including open or short conditions in the cable. - Does the KSZ8851-16MLL-TR support flow control?
Yes, it supports IEEE 802.3x full-duplex flow control and half-duplex backpressure collision flow control. - What is the temperature range for the KSZ8851-16MLL-TR?
The commercial version operates from 0°C to +70°C, and the industrial version from –40°C to +85°C. - Does the KSZ8851-16MLL-TR have any power management features?
Yes, it includes energy detect mode and soft power-down mode to ensure low-power dissipation during idle periods. - What is HP Auto-MDIX in the context of the KSZ8851-16MLL-TR?
HP Auto-MDIX automatically detects and adjusts for straight or crossover cables, eliminating the need for manual differentiation. - Are there any automotive and industrial versions of the KSZ8851-16MLL-TR?
Yes, there are industrial (KSZ8851-16MLLI) and automotive (KSZ8851-16MLLU) versions available.
