FSSD06UMX

FSSD06 — SD/SDIO and MMC Two-Port Multiplexer September 2007 FSSD06 — SD/SDIO and MMC Two-Port Multiplexer Features 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 (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) 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 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. - VDDH=1.65 to 3.6V, VDDC1/C2=VDDH to 3.6V 24-Lead MLP (3.5 x 4.5mm) and UMLP Packages Applications Cell Phone, PDA, Digital Camera, Portable GPS LCD Monitor, Home Theater PC/TV, All-in-One Printer IMPORTANT NOTE: For additional performance information, please contact analogswitch@fairchildsemi.com. Analog Symbol Diagram VDDC1 VDDC2 VDDH 5 DAT[0:3], CMD 5 5 2DAT[0:3], 2CMD Control /OE S 1DAT[0:3], 1CMD V DD C 1 V DD C2 RPU RPU CLK 1CLK 2CLK GND Figure 1. Analog Symbol Diagram Ordering Information Part Number FSSD06BQX FSSD06UMX (Preliminary) © 2007 Fairchild Semiconductor Corporation FSSD06 Rev. 1.0.1 Pb-Free Operating Temperature Range -40°C to +85°C -40°C to +85°C 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 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