FSSD06 FAIRCHILD | Alldatasheet

Document overview

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Technical content

Features

ƒ On Resistance Typically 4Ω, VDDH=2.7V ƒ Ftoggle: > 120MHz ƒ Low On Capacitance: 9pF Typical ƒ Low Power Consumption: 1µA Maximum ƒ Conforms to Secure Digital (SD), Secure Digital I/O (SDIO), and Multimedia Card (MMC) Specifications ƒ Supports 1-Bit / 4-Bit Host Controllers (VDDH=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) - VDDH=1.65 to 3.6V, VDDC1/C2=VDDH to 3.6V ƒ 24-Lead MLP (3.5 x 4.5mm) and UMLP Packages

Applications

ƒ Cell Phone, PDA, Digital Camera, Portable GPS ƒ LCD Monitor, Home Theater PC/TV, All-in-One Printer

Description

The FSSD06 is a two-port multiplexer that allows Secure Digital (SD), Secure Digital I/O (SDIO), and Multimedia Card (MMC) host controllers to be expanded out to multiple cards or peripherals. This configuration enables the CMD, CLK, and D[3:0] signals to be multiplexed to dual-card peripherals. It is optimized for 1-bit / 4-bit SD / MMC applications. 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 for the FSSD06 is a uni-directional buffer with an integrated pull-up for high-impedance mode. Typical applications involve switching in portables and consumer applications: cell phones, digital cameras, home theater monitors, portable GPS units, and printers. IMPORTANT NOTE: For additional performance info rmation, please contact analogswitch@fairchildsemi.com. Analog Symbol Diagram GND 1CLK 2CLK DAT[0:3], CMD CLK Control /OE S VDDC1 RPU 1DAT[0:3], 1CMD 2DAT[0:3], 2CMD VDDC2 RPU VDDC1 VDDC2 VDDH Figure 1. Analog Symbol Diagram

Ordering Information

Part Number Pb-Free Operating Temperature Range Package Description Packing Method FSSD06BQX -40°C to +85°C 24-Lead Molded Leadless Package (MLP), JEDEC MO-220, 3.5 x 4.5mm Tape & Reel FSSD06UMX (Preliminary) -40°C to +85°C 24-Lead Ultrathin Molded Leadless Package (UMLP) (Preliminary) Tape & Reel

© 2007 Fairchild Semiconductor Corporation www.fairchildsemi.com FSSD06 Rev. 1.0.1 14 FSSD06 — SD/SDIO and MMC Two-Port Multiplexer CONFIDENTIAL AND PROPRIETARY — DO NOT DISTRIBUTE