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| FSSD07 -- 1-Bit / 4-Bit SD/SDIO and MMC Dual-Host Multiplexer April 2009 FSSD07 1-Bit / 4-Bit SD/SDIO and MMC Dual-Host Multiplexer Features On Resistance: 5 Typical, VDDC=2.7V ftoggle: >75MHz Low On Capacitance: 6pF Typical Low Power Consumption: 2A 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) 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 highvoltage 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. - VDDC=1.65 to 3.6V, VDDH1/H2=1.65 to 3.6V 24-Lead MLP and UMLP Packages Applications Cell Phone, PDA, Digital Camera, Portable GPS, and Notebook Computer LCD Monitor, TV, and Set-Top Box Analog Symbol IMPORTANT NOTE: For additional performance information, please contact analogswitch@fairchildsemi.com. Figure 1. Analog Symbol Diagram Ordering Information Part Number Top Mark Operating Temperature Range -40C to +85C -40C to +85C Eco Status Green Green Package Description 24-Lead Molded Leadless Package (MLP), JEDEC MO-220, 3.5 x 4.5mm 24-Lead Ultra-thin Molded Leadless Package (UMLP), 0.4mm pitch Packing Method Tape & Reel Tape & Reel FSSD07BQX FSSD07 FSSD07UMX JK For Fairchild's definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html. (c) 2007 Fairchild Semiconductor Corporation FSSD07 Rev. 1.0.0 www.fairchildsemi.com FSSD07 -- 1-Bit / 4-Bit SD/SDIO and MMC Dual-Host Multiplexer (c) 2007 Fairchild Semiconductor Corporation FSSD07 Rev. 1.0.0 www.fairchildsemi.com 16 |
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