JMC261 Datasheet PDF – Card Reader Driver – JMicron

Part Number : JMC261

Function : PCI Express to Fast Ethernet & Card Reader Host Controller

Package : 64-pin LQFP

Manufacturers : JMicron Technology

Images :

JMC261 datasheet


Description :

The JMC261 is a single-chip PCI-Express Fast Ethernet combo Card Reader Host controller. The  Fast Ethernet  function  is compliant  to  IEEE  802.3  Media  Access  Controller,  and  IEEE 802.3u 100BASE-TX/10BASE-T. The MAC supports IPV4, IPV6, TCP, UDP checksum, segmentation task-offload, priority encoding and IEEE802.1Q VLAN features. It also supports Receive Side Scaling (RSS) to balance the loading for received data processing across multiple CPUs.


1. Compliant with PCI Express Base Spec. Revision 1.1
2. Integrated one-lane 2.5GHz PCI Express PHY
3. Support multi-entry MSI and multi-vector MSI-X.
4. Compliant with IEEE 802.3, IEEE 802.3u, and IEEE 802.3ab
5. Integrated 10/100Mbps transceiver
6. Support Auto Negotiation
7. Support Wake-on-LAN

Other data sheets within the file : JMC251

JMC261 Datasheet PDF Download

JMC261 pdf


JMS539 Datasheet PDF – USB to SATA II 3.0G Bridge – JMicron

Part Number : JMS539

Function : SuperSpeed USB to SATA II 3.0G Bridge controller

Package : 64-pin LQFP, 64-pin QFN

Manufacturers : JMicron

Images :

JMS539 datasheet


Description :

The JMS539 is a bridge controller, which translates the communication protocol between SATA II 3.0G and SuperSpeed USB commands. The integrated 60MIPS 8051, SATA II, Hi-Speed USB and SuperSpeed USB technology enable users to perform SuperSpeed USB to SATA II 3.0G, applications in a signal chip.


1. Complies with Gen2i/Gen2m of Serial ATA II Electrical Specification 2.6
2. Supports SATA II Asynchronous Signal Recovery (Hot Plug) feature
3. Complies with USB 3.0 Specification, USB Mass Storage Class, Bulk-Only Transport Specification
4. Supports USB Super-Speed/High-Speed/Full-Speed Operation
5. Supports 25MHz external crystal
6. Embedded 3.3V to 1.2V voltage regulator
7. 0.13um CMOS technology


Other data sheets within the file : MS539

JMS539 Datasheet PDF Download

JMS539 pdf