Fairchild FSSD07 1-bit / 4-bit sd/sdio and mmc dual-host multiplexer Datasheet

FSSD07
1-Bit / 4-Bit SD/SDIO and MMC Dual-Host Multiplexer
Features
Description
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
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.
ƒ Supports 1-Bit / 4-Bit Host Controllers
The architecture includes the necessary bi-directional
data and command transfer capability for single highvoltage cards or dual-voltage supply cards. The clock
path is a uni-directional buffer.
(SDIO), and Multimedia Card (MMC) Specifications
(VDDH1/H2=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)
ƒ
Typical applications involve switching in portables and
consumer applications: cell phones, digital cameras,
home theater monitors, set-top boxes, and notebooks.
VDDC=1.65 to 3.6V, VDDH1/H2=1.65 to 3.6V
24-Lead MLP and UMLP Packages
Analog Symbol
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 information, please contact
[email protected].
Figure 1. Analog Symbol Diagram
Ordering Information
Part
Number
Top
Mark
Operating
Temperature Range
Eco
Status
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
-40°C to +85°C
Green
24-Lead Ultra-thin Molded Leadless Package
(UMLP), 0.4mm pitch
Tape &
Reel
JK
Packing
Method
Package Description
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2007 Fairchild Semiconductor Corporation
FSSD07 Rev. 1.0.0
www.fairchildsemi.com
FSSD07 — 1-Bit / 4-Bit SD/SDIO and MMC Dual-Host Multiplexer
April 2009
FSSD07 — 1-Bit / 4-Bit SD/SDIO and MMC Dual-Host Multiplexer
© 2007 Fairchild Semiconductor Corporation
FSSD07 Rev. 1.0.0
www.fairchildsemi.com
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