KSZ8081RNDIA-TR

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KSZ8081RNDIA-TR
BaoxingWei inventory：2000 PCS
Mfg： MICROCHIP
Package： VQFN24
D/C： 22+
Note： Supply only imported original genuine Shenzhen and Hongkong in stock
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KSZ8081RNDIA-TR

The KSZ8081 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 KSZ8081 is a highly-integrated PHY solution. It reduces board cost and simplifies board layout by using on-chip termination resistors for the differential pairs and by integrating a low-noise regulator to supply the 1.2V core, and by offering 1.8/2.5/3.3V digital I/O interface support.

The KSZ8081RNx offers the Reduced Media Independent Interface (RMII) for direct connection to RMII-compliant MACs in Ethernet processors and switches. As the power-up default, the KSZ8081RNA uses a 25MHz crystal to generate all required clocks, including the 50MHz RMII reference clock output for the MAC. The KSZ8081RND is the version that takes in the 50MHz RMII reference clock as the power-up default.

The KSZ8081MLX and KSZ8081MNX offer the Media Independent Interface (MII) for direct connection with MII-compliant Ethernet MAC processors and switches. A 25MHz crystal is used to generate all required clocks.

To facilitate system bring-up and debugging in production testing and in product deployment, parametric NAND tree support enables fault detection between KSZ8081RNA I/Os and the board. Microchip's LinkMD® TDR-based cable diagnostics identify faulty copper cabling.

The KSZ8081RNA and KSZ8081RND are available in 24-pin, lead-free QFN packages. The KSZ8081MNX and KSZ8081RNB are available in 32-pin, lead-free QFN packages. The KSZ8081MLX is available in 48-pin (7mm x 7mm) LQFP package.

KSZ8081是一款单电源10Base-T/100Base-TX以太网物理层收发器，用于通过标准CAT-5非屏蔽双绞线(UTP)电缆发送和接收数据。KSZ8081是高度集成的PHY解决方案。它通过对差分对使用片内端接电阻、集成低噪声稳压器为1.2V内核供电，以及提供1.8/2.5/3.3V数字I/O接口支持，降低了电路板成本并简化了电路板布局。

KSZ8081RNx提供简化的媒体独立接口(RMII ),用于直接连接到以太网处理器和交换机中符合RMII标准的MAC。作为上电默认设置，KSZ8081RNA使用25MHz晶振来产生所有需要的时钟，包括MAC的50MHz RMII参考时钟输出。KSZ8081RND是采用50MHz RMII参考时钟作为上电默认时钟的版本。

KSZ8081MLX和KSZ8081MNX提供媒体独立接口(MII ),用于直接连接符合MII标准的以太网MAC处理器和交换机。一个25MHz的晶体用来产生所有需要的时钟。

为了方便生产测试和产品部署中的系统启动和调试，参数NAND树支持实现ksz 8081 RNA I/o和板之间的故障检测。Microchip基于LinkMD TDR的电缆诊断可识别有故障的铜缆。

KSZ8081RNA和KSZ8081RND采用24引脚无铅QFN封装。KSZ8081MNX和KSZ8081RNB采用32引脚无铅QFN封装。KSZ8081MLX采用48引脚(7毫米x 7毫米)LQFP封装。

Product Features 产品特性

Single-chip 10Base-T/100Base-TX IEEE 802.3 compliant Ethernet transceiver
MII interface support (KSZ8081MNX)
RMII v1.2 Interface support with a 50MHz reference clock output to MAC, and an option to input a 50MHz reference clock (KSZ8081RNB)
RMII 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
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 linkup speed (10/100Mbps) and duplex (half/full)
Power-down and power-saving modes
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
Available in 24-pin (4mm x 4mm) QFN package, 32-pin (5mm x 5mm) QFN package or 48-pin (7mm x 7mm) LQFP package
符合IEEE 802.3标准的单芯片10Base-T/100Base-TX以太网收发器
MII接口支持(KSZ8081MNX)
RMII v1.2接口支持50MHz参考时钟输出到MAC，并可选择输入50MHz参考时钟(KSZ8081RNB)
100Mbps铜缆中继器的RMII背靠背模式支持
PHY寄存器配置的MDC/MDIO管理接口
可编程中断输出
链接和活动状态指示的LED输出
差分对的片内端接电阻
基线漂移校正
HP Auto MDI/MDI-X通过禁用和启用选项可靠地检测和纠正直通和交叉电缆连接
自动协商，自动选择最高连接速度(10/100Mbps)和双工(半双工/全双工)
掉电和省电模式
基于LinkMD TDR的电缆诊断，用于识别故障铜缆
参数NAND树支持芯片I/o和电路板之间的故障检测
诊断的回送模式
3.3V单电源，带1.8V、2.5V或3.3V VDD I/O选项
提供24引脚(4毫米x 4毫米)QFN封装、32引脚(5毫米x 5毫米)QFN封装或48引脚(7毫米x 7毫米)LQFP封装

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