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JMB38X SD/MMC Host Controller
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Applies to:

JMB38X MS SD SD/MMC xD Card Reader




Input/Output Devices


Windows 7

File Size:

3.5 MB

File Name:


Release Date:



Last Updated:



/5 from 20 reviews.


  • Type: Media Card Reader
  • Interface: Built In
  • Memory: SD/MMC ports for SD/MMC cards
  • Lanes: 1-lane PCI Express
  • Power Regulator: 3.3v-to-1.8


The JMB38X SD/MMC Host Controller includes 1394a OHCI and a memory card reader. This product family from HP is a 1-lane PCI Express that can be connected to 1/2-port 1394a and 1/2-slot SD/MMC/MS/xD Memory Card Reader Host Controller. The other features of the JMB38X SD/MMC Host Controller include External Serial EEPROM support, integration for code power with a 3.3v-to-1.8 regulator, integration for memory card power control with Power Switch and integration with 2-port 1394a PHY.

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The JMB38X SD/MMC Host Controller offers peripheral components that support EEPROM external serial and 3.3v-to-3.3/1.8v power switch for power of SDA3.0 IO. This HP input/output device comes with a 3.3V CMOS Standard Logic Process fabricated at 0.18um. The original MultiMediaCard was a flash memory card standard introduced by Siemens AG and SanDisk in 1997. It was based on the NAND-based flash memory of Toshiba, which made it smaller than past system-based memory like CompactFlash.