深圳市桑尼奇科技有限公司

 DM9621A USB2.0 to 10/100M Fast Ethernet Controller

1、芯片描述：

The DM9621A USB to 10/100Mbps Fast Ethernet controller is a high performance and highly integrated ASIC with embedded SSRAM for packet buffering. It enables low cost and affordable Fast Ethernet network connection to desktop, notebook PC, and embedded system using popular USB ports. It has an USB interface to communicate with USB host controller and is compliant with USB specification V1.0, V1.1 and V2.0. It implements 10/100Mbps Ethernet LAN function based on IEEE802.3, and IEEE802.3u standards. DM9621A integrates an on-chip 10/100Mbps Ethernet PHY to simplify system design and provides an optional Reduce media-independent interface (RMII)（点击即可咨询芯片详细信息）

2、芯片特性：

· USB Interface

USB2.0 Device

Support 12Mbps full speed operation

Support 480Mbps high speed operation

Support suspend mode and remote wake-up resume

Support USB standard commands

Support vendor specific commands  

Efficient TX/RX FIFO auto management. 

Embedded SRAM for RX/TX packet buffering

Supports 4endpoints (Control, Interrupt, Bulk IN, Bulk OUT)

Supported Classes: USB Common Class / USB Communications Class

 ·Ethernet

Support IEEE802.3u 100BASE-TX and with IEEE802.3 10BASE-T standards

Support IEEE802.3x flow control function for 100BASE-TX and 10BASE-T.

Support IEEE 802.3az Energy Efficient Ethernet (EEE)

Built-in 10/100Mbps Fast-Ethernet PHY with Auto-MDIX

Supports RMII interface or 8 pins GPIO

Support Auto-Negotiation function

Back Pressure Mode for Half-Duplex mode flow Control

PAUSE frame for Full-Duplex flow control

Support Power management: Wake-on-LAN, ARP/NDP Offload

Supports GPIO, wakeup frame, link status change and Magic packet events for remote wake-up

Support TCP / UDP / IPv4 checksum offload checking and generating

· EEPROM Interface

Supports 128/256/512 bytes (93C46/93C56/93C66) of serial EEPROM(for storing USB Descriptors)

 93C46/93C56/93C66 auto-detection

3、应用线路图：

5. 封装（脚位）

在线咨询

建议零售价格仅用于预算，以元为单位，并且价格是浮动的。 若要查询有关批量价格、本地货币价格或交付报价的信息，请与公司联系。（点击咨询）

建议零售价格仅用于预算，以元为单位，并且价格是浮动的。 若要查询有关批量价格、本地货币价格或交付报价的信息，请与公司联系。（点击咨询）

桑尼奇科技是深圳市知名的IC代理商，能为广大工程师与采购朋友提供众多类型产品，小批量当天交货，10K以上5-10天交货。