Datasheet

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March 2012

FSSD06 • Rev. 1.0.5

FSSD06 — SD/SDIO and MMC Two-Port Multiplexer

Features

 On Resistance Typically 4, V

DDH

=2.7V

 f

toggle

: > 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 (V

DDH

=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)

- V

DDH

=1.65 to 3.6V, V

DDC1/C2

DDH

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

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.

Analog Symbol Diagram

GND

1CLK

2CLK

DAT[0:3], CMD

CLK

Control

/OE

DDC1

1DAT[0:3], 1CMD

2DAT[0:3], 2CMD

DD C2

VDDC1

VDDC2

VDDH

Figure 1. Analog Symbol Diagram

Ordering Information

Part Number

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 -40°C to +85°C 24-Lead Ultrathin Molded Leadless Package (UMLP) Tape & Reel

Summary of content (14 pages)

PAGE 1
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.
PAGE 2
DAT[2] 3 22 VDDC1 DAT[3] 4 21 1CLK CMD 5 20 1DAT[0] VDDH 6 19 GND 7 CLK 1DAT[3] 1CMD VDDC1 23 1DAT[2] 1DAT[3] 1CMD 24 /OE 1DAT[2] 1 DAT[2] /OE 2 24 23 22 21 20 19 DAT[3] 1 18 1CLK CMD 2 17 1DAT[0] 1DAT[1] VDDH 3 16 1DAT[1] 18 2DAT[2] GND 4 15 2DAT[2] 8 17 2DAT[3] CLK 5 14 2DAT[3] DAT[0] 9 16 2CMD DAT[0] 6 13 2CMD DAT[1] 10 15 VDDC2 2DAT[0] 2CLK Figure 3. 9 10 11 12 VDDC2 2DAT[1] MLP Pin Assignments 8 2CLK S Figure 2.
PAGE 3
VDDH 1.65 – 3.60V VDDC1 FSSD06 VDD H to 3.6V RT GND CMD, DAT[3:0] 1CMD, 1DAT[3:0] 5 5 Processor 1CLK Secure Data / Multimedia Card 2:1 Peripheral Expander CLK WiFi, Bluetooth, MMC or SD Module VDDC2 VDD H to 3.6V RT Note: External resistors (R T) are recommended if card supplies are allowed to float in the application. The resistors should be >500K to minimize power consumption. GND 2CMD, 2DAT[3:0] 5 2CLK /OE S GND Figure 4.
PAGE 4
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol Parameter Conditions Min. Max. Unit 4.6 V 4.6 V VDDH Supply Voltage -0.
PAGE 5
All typical values are for VDDH=1.8V at 25°C unless otherwise specified. Symbol Parameter VDDC1 / VDDC2 (V) Conditions TA=- 40°C to +85°C Min. Typ. Max. Unit Common Pins VIK Clamp Diode Voltage 2.7 IIK=-18mA VIH Control Input Voltage High 2.7 VIL Control Input Voltage Low 2.7 IIN S, /OE Input High Current 3.6 VDDH=1.95V, VCNTRL=0V to VDDH IOZ Off Leakage, Current of all ports 3.6 VDDH=1.95V, VSW =0V to VDDX IPU CLK Pull-up Current 3.
PAGE 6
All typical values are for VDDH=2.7V at 25°C unless otherwise specified. Symbol Parameter VDDC1 / VDDC2 (V) Conditions TA=- 40°C to +85°C Min. Typ. Max. Unit Common Pins VIK Clamp Diode Voltage 2.7 VIH Control Input Voltage High 2.7 VIL Control Input Voltage Low 2.7 IIN S, /OE Input High Current 3.6 IOZ Off Leakage Current of all ports 3.6 IPU CLK Pull-up Current IIK=-18mA VDDH=2.7V -1.2 1.8 V 0.8 VDDH=3.6V, VCNTRL=0V to VDDH VDDH=3.6V, VSW =0V to VDDX 3.
PAGE 7
All typical values are for VDDH=1.8V at 25°C unless otherwise specified. Symbol Parameter VDDC1 / VDDC2 (V) tON1 Turn-On Time, S, /OE to CMD, DAT[3:0] 2.7 to 3.6 tOFF1 Turn-Off Time, S, /OE to CMD, DAT[3:0] Switch Propagation Delay(9) Conditions TA=- 40°C to +85°C Unit Typ. Max. VSW =0V, RL=1kΩ, CL=30pF See Figure 7, Figure 8 10 24 ns 2.7 to 3.6 VSW =0V, RL=1kΩ, CL=30pF See Figure 7, Figure 8 7 22 ns 2.7 to 3.6 See Figure 9 1 ns Switch Skew CMD, DAT[3:0] 2.7 to 3.
PAGE 8
All typical values are for VDDH=2.7V at 25°C unless otherwise specified. Symbol Parameter VDDC1 / VDDC2 (V) Conditions TA=- 40°C to +85°C Min. Typ. Max. Unit tON1 Turn-On Time S, /OE to CMD, DAT[3:0] 2.7 to 3.6 VSW =0V, RL=1kΩ, CL=30pF See Figure 7, Figure 8 8 17 ns tOFF1 Turn-Off Time S, /OE to CMD, DAT[3:0] 2.7 to 3.6 VSW =0V, RL=1kΩ, CL=30pF See Figure 7, Figure 8 6 13 ns Switch Propagation Delay(11) 2.7 to 3.6 See Figure 9 tPD 1 ns 1.5 ns (12) Switch Skew CMD, DAT[3:0] 2.
PAGE 9
V ON nDAT[3:0],nCMD I OZ NC DAT[3:0],CMD A V IN GND Select RON = Figure 5. Select GND VS = V ddl 0 orV VS = VON / ION V IN I ON On Resistance Figure 6. GND 0 orV V ddl Off Leakage (Each Switch Port is Tested Separately) V DDx tRISE = 2.5ns DAT[3:0], CMD nDAT[3:0],nCMD RL VSW Vddx V OUT CL RS GND tFALL = 2.
PAGE 10
tRISE = 2.5ns t FALL = 2.5ns Network Analyzer RS Vddx 90% Input - VCLKI V ddx /2 10% GND 90% V ddx /2 10% VS VOHC VOLC tpLH VS GND V OUT GND RT RS and R T are function of application environment (see AC Tables for specific values) 50% 50% V IN GND GND Output - VCLKO Figure 11. GND RT tpHL GND Off -Isolation = 20 Log (VOUT / VIN ) CLK Propagation Delay Waveforms Figure 12.
PAGE 11
Package Designator Tape Selection Number Cavities Cavity Status Cover Tape Status Leader (Start End) 125 (Typical) Empty Sealed Carrier 3000 Filled Sealed Trailer (Hub End) 75 (Typical) Empty Sealed MPX Tape Dimensions Dimensions are in millimeters unless otherwise noted. FSSD06 — SD/SDIO and MMC Two-Port Multiplexer Tape and Reel Specifications Reel Dimensions Dimensions are in inches (millimeters) unless otherwise noted. Tape Size (12.00mm) A B C D N W1 W2 13.000 0.059 0.
PAGE 12
FSSD06 — SD/SDIO and MMC Two-Port Multiplexer Physical Dimensions Figure 16. 24-Lead Molded Leadless Package Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision.
PAGE 13
2.80 2.23 0.66 0.10 C A 2.50 2X 24 B 0.56 19 1 0.40 2.23 PIN #1 IDENT 3.70 3.40 13 7 0.10 C 0.23 2X TOP VIEW RECOMMENDED LAND PATTERN 0.55 MAX. 0.10 C 0.15 SEATING PLANE 0.08 C C 0.05 0.00 SIDE VIEW FSSD06 — SD/SDIO and MMC Two-Port Multiplexer Physical Dimensions 7 23X 0.35 0.45 13 0.40 1 24 0.45 0.55 19 BOTTOM VIEW Figure 17. 0.15 24X 0.25 0.10 C A B 0.
PAGE 14
FSSD06 — SD/SDIO and MMC Two-Port Multiplexer © 2007 Fairchild Semiconductor Corporation FSSD06 • Rev. 1.0.5 www.fairchildsemi.