Data Sheet

© 2007 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSSD07 Rev. 1.0.2 7
FSSD07 — 1-Bit / 4-Bit SD/SDIO and MMC Dual-Host Multiplexer
DC Electrical Characteristics at 2.7V V
DDC
All typical values are for V
DDC
=2.7V at 25°C unless otherwise specified.
Symbol Parameter V
DDC
(V)
V
DDH1
/
V
DDH2
(V)
Conditions
T
A
=-40 to +85°C
Unit
Min. Typ. Max.
Common Pins
V
IK
Clamp Diode Voltage 2.7 2.7 I
IK
=-18mA -1.2
V
V
IH
Control Input Voltage
High
2.7 2.7 1.8
V
IL
Control Input Voltage
Low
2.7 2.7 0.8
I
IN
S, OE Input High Current 3.6 3.6 V
CNTRL
=0V to V
DDC
-1 1 µA
I
OZ
Off Leakage Current of
all Ports
3.6 3.6 V
SW
=0V to V
DDC
-1.0 0.5 1.0 µA
V
OHC
CLK Output Voltage
High
(6)
2.7 2.7 I
OH
=-2mA 2.4 V
V
OLC
CLK Output Voltage
Low
(6)
3.6 3.6 I
OL
=-2mA 90 mV
R
ON
Switch On Resistance
(7)
2.7 2.7
V
CMD, DAT[3:0]
=0V,
I
ON
=-2mA
Figure 5
5.0 8.0 
R
ON
Delta On Resistance
(6, 8)
2.7 2.7
V
CMD, DAT[3:0]
=0V,
I
ON
=- 2mA
0.8 
Power Supply
I
CC(VDDC)
Quiescent Supply Current
(Card)
3.6 0 V
SW
=0 or V
DDC
, I
OUT
=0 2 µA
I
CC
(VDDH1/C2)
Quiescent Supply Current
(Hosts)
3.6 3.6
V
SW
=0 or V
DDx,
I
OUT
=0,
V
CLKI
=V
DDHX
, V
CLKO
=Open,
OE=V
DDC
2 µA
I
HOST
Delta I
CC(VDDH1, VDDH2)
for
One Card Powered Off
3.6
3.6 / 0
0 / 3.6
V
SW
=0 or V
DDx,
I
OUT
=0,
V
CLKI
=V
DDHX
, V
CLKO
=Open,
OE=V
DDC
2 µA
Notes:
6. Guaranteed by characterization, not production tested.
7. On resistance is determined by the voltage drop between the switch I/O pins at the indicated current through the
switch.
8.  R
ON
=R
ON max
– R
ON min
measured at identical V
CC
, temperature, and voltage.