FSSD06 — SD/SDIO and MMC Two-Port Multiplexer Features Description On Resistance Typically 4Ω, VDDH=2.7V Ftoggle: > 120MHz Low On Capacitance: 9pF Typical Low Power Consumption: 1µA Maximum Conforms to Secure Digital (SD), Secure Digital I/O 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. (SDIO), and Multimedia Card (MMC) Specifications 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 The architecture includes the necessary bi-directional data and command transfer capability for single highvoltage 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. 24-Lead MLP (3.5 x 4.5mm) and UMLP Packages Applications IMPORTANT NOTE: Cell Phone, PDA, Digital Camera, Portable GPS LCD Monitor, Home Theater PC/TV, All-in-One For additional performance information, please contact [email protected]. Printer Analog Symbol Diagram VDDC1 /OE S Control VDDC2 VDDH 5 DAT[0:3], CMD 5 CLK 1DAT[0:3], 1CMD 5 V DD C 1 V DD C2 RPU RPU 2DAT[0:3], 2CMD 1CLK 2CLK GND Figure 1. Analog Symbol Diagram Ordering Information Part Number Pb-Free Operating Temperature Range FSSD06BQX -40°C to +85°C FSSD06UMX (Preliminary) -40°C to +85°C © 2007 Fairchild Semiconductor Corporation FSSD06 Rev. 1.0.1 Package Description 24-Lead Molded Leadless Package (MLP), JEDEC MO-220, 3.5 x 4.5mm 24-Lead Ultrathin Molded Leadless Package (UMLP) (Preliminary) Packing Method Tape & Reel Tape & Reel www.fairchildsemi.com FSSD06 — SD/SDIO and MMC Two-Port Multiplexer September 2007 CONFIDENTIAL AND PROPRIETARY — DO NOT DISTRIBUTE FSSD06 — SD/SDIO and MMC Two-Port Multiplexer © 2007 Fairchild Semiconductor Corporation FSSD06 Rev. 1.0.1 www.fairchildsemi.com 14