MB86C311 Datasheet – USB 3.0-SATA Bridge IC – Fujitsu

Part Number: MB86C311

Function : USB 3.0-SATA Bridge IC

Package: LQFP 64 Pin Type

Manufacturer: Fujitsu, Socionext



The MB86C311 series are ASSP ICs intended for an external USB HDD unit that is connected to PC. Especially this product is suitable for simple USB HDD that is composed of single HDD, for example, a low-end oriented desktop model and a portable model. This product can easily enable you to grade up legacy USB2.0 storage unit to up-to-date USB3.0 storage unit.

Block Diagram :



1. Compliant to USB3.0 specification

MB86C311 solution complies with USB3.0, 5Gbps that provides a maximum of over 10 times the data transfer rate of USB 2.0. The maximum transmission speed of USB3.0 allows for example 10GB to 30GBytes of video data to be copied to a 3.5 inch hard disk drive in 1/4 to 1/3 the time compared to the existing USB2.0 interface.

2. UAS (USB Attached SCSI) protocol

86C311 solution supports UAS protocol, which is a new protocol for USB storage devices. UAS enables NCQ (Native Command Queuing) function that can achieve random access performance of SATA device such as HDD and SSD.

3. 1-chip integration of necessary functions for USB storage using SATA device MB86C311 integrates all needed interface blocks and a control block on one chip. Thus it can easily enable to build USB3.0 storage unit with a few peripheral ICs and SATA device, which is HDD or Blu-ray.

Official Homepage: http://www.socionext.com/


MB86C311 Datasheet PDF


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CM108 Datasheet – USB Audio Controller – C-Media

Part Number: CM108

Description: High Integrated USB Audio I/O Controller

Package: 48 Pin LQFP Type ( 7mm×7mm×1.4mm )

Manufacturer: C-MEDIA ELECTRONICS ( http://www.cmedia.com.tw )




The CM108 is a highly integrated single chip USB audio solution. All essential analog modules are embedded in CM108, including dual DAC and earphone driver, ADC, microphone booster, PLL, regulator, and USB transceiver. It is very suitable for USB headset, USB earphone or USB audio interface box application. Many features are programmable with jumper pins or external EEPROM. In addition, audio adjustment can be easily controlled via specific HID compliant volume control pins. For value added application, external codec or audio DSP can be connected to CM108 via I2S pin for further processing. 4 GPIO pins can be accessed with customer application software for additional value added application.



1. Compliant with USB 2.0 Full Speed Operation

2. Compliant with USB Audio Device Class Specification v1.0

3. Supports USB Suspend / Resume Mode and Remote Wakeup with Volume Control Pins

4. Single 12MHz Crystal Input with On-chip PLL and Embedded USB Transceiver

5. Jumper Pin for Speaker Mode (Playback Only) or Headset Mode (Playback + Recording)

6. For Headset Mode, USB Audio Function Topology has 2 Input Terminals, 2 Output Terminals, 1 Mixer Unit, 1 Selector Unit, and 3 Feature Units

7. Jumper Pin for Mixer Unit Enable / Disable under Headset Mode

8. For Speaker Mode, USB Audio Function Topology has 1 Input Terminal, 1 Output Terminal, and 1 Feature Unit

9. Support One Control Endpoint, One Isochronous Out Endpoint, One Isochronous In Endpoint, and One Interrupt In Endpoint






CM108 Datasheet


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