FSSD07

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1-Bit / 4 Bit SD/SDIO and MMC Dual-Host Multiplexer

General Description

The FSSD07 is a 2:1 multiplexer that allows dual Secure Digital (SD), Secure Digital I/O (SDIO), and Multimedia Card (MMC) host controllers to share a common peripheral. The host controllers can be equal to, greater than, or less than peripheral card supply with minimal power consumption. This configuration enables dual host CMD, CLK, and D[3:0] signals to be multiplexed to a common peripheral.
The architecture includes the necessary bi-directional data and command transfer capability for single high-voltage cards or dual-voltage supply cards. The clock path is a uni-directional buffer.
Typical applications involve switching in portables and consumer applications: cell phones, digital cameras, home theater monitors, set-top boxes, and notebooks.

Product Status/Pricing/Packing

Product Product Status Eco Status *Pricing Package Type Leads Packing Method Package Drawing **Package Marking Convention RoHS IPC1752 RoHS/REACH/JIG Certificate of Compliance
FSSD07BQX Full Production Green as of Jun 2008 $0.73 DQFN 24 TAPE REEL PDF Line 1:$Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code) &K
Line 2:FSSD
Line 3:07
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FSSD07UMX Full Production Green as of Jun 2008 $0.73 UMLP 24 TAPE REEL PDF Line 1:JK
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Features

    ■ On Resistance: 5Ω Typical, VDDC=2.7V
    ■ ftoggle: 75MHz
    ■ Low On Capacitance: 6pF Typical
    ■ Low Power Consumption: 2µA Maximum
    ■ Supports Secure Digital (SD), Secure Digital I/O (SDIO), and Multimedia Card (MMC) Specifications
    ■ Supports 1-Bit / 4-Bit Host Controllers (VDDH1/H2=1.65V to 3.6V) Communicating with High-Voltage (2.7-3.6V) and Dual-Voltage Cards (1.65-1.95V, 2.7-3.6V)
    ■ VDDC=1.65 to 3.6V, VDDH1/H2=1.65 to 3.6V
    ■ 24-Lead MLP and UMLP Packages

Applications

  • Media Tablets
  • Mobile Handsets
  • PMP/MP3 Players
  • Storage & Peripherals
  • Wireless LAN Card & Broadband Access
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