FSSD07 FAIRCHILD | Alldatasheet

Document overview

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Technical content

Features

ƒ On Resistance: 5Ω Typical, VDDC=2.7V ƒ ftoggle: >75MHz ƒ Low On Capacitance: 6pF Typical ƒ Low Power Consumption: 2µA Maximum ƒ Supports Secure Digital (SD), Secure Digital I/O (SDIO), and Multimedia Card (MMC) Specifications ƒ Supports 1-Bit / 4-Bit Host Controllers DDH1/H2=1.65V to 3.6V) Communicating with High-Voltage (2.7-3.6V) and Dual-Voltage Cards - VDDC=1.65 to 3.6V, VDDH1/H2=1.65 to 3.6V ƒ 24-Lead MLP and UMLP Packages

Applications

ƒ Cell Phone, PDA, Digital Camera, Portable GPS, and Notebook Computer ƒ LCD Monitor, TV, and Set-Top Box IMPORTANT NOTE: For additional performance info rmation, please contact analogswitch@fairchildsemi.com.

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. Analog Symbol Figure 1. Analog Symbol Diagram

Ordering Information

Status Package Description Packing Method FSSD07BQX FSSD07 -40°C to +85°C Green 24-Lead Molded Leadless Package (MLP), JEDEC MO-220, 3.5 x 4.5mm Tape & Reel FSSD07UMX JK -40°C to +85°C Green 24-Lead Ultra-thin Molded Leadless Package (UMLP), 0.4mm pitch Tape & Reel For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.

© 2007 Fairchild Semiconductor Corporation www.fairchildsemi.com FSSD07 Rev. 1.0.0 16 FSSD07 — 1-Bit / 4-Bit SD/SDIO and MMC Dual-Host Multiplexer