Data Sheet

© 2007 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSSD07 Rev. 1.0.2 6
FSSD07 — 1-Bit / 4-Bit SD/SDIO and MMC Dual-Host Multiplexer
DC Electrical Characteristics at 1.8V V
DDC
All typical values are for V
DDC
=1.8V 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 1.80 1.80 I
IK
=-18mA -1.2 V
V
IH
Control Input Voltage
High
1.80 1.80 1.3 V
V
IL
Control Input Voltage
Low
1.80 1.80 0.5 V
I
IN
S, OE Input High
Current
1.95 1.95 V
CNTRL
=0V to V
DDC
-1 1 µA
I
OZ
Off Leakage, Current of
all ports
1.95 1.95 V
SW
=0V to V
DDC
-1.0 0.5 1.0 µA
V
OHC
CLK Output Voltage
High
(3)
1.95 1.95 I
OH
=-2mA 1.6 V
V
OLC
CLK Output Voltage
Low
(3)
1.65 1.65 I
OL
=-2mA 90 mV
R
ON
Switch On Resistance
(4)
1.65 1.65
V
CMD, DAT[3:0]
=0V,
I
ON
=-2mA
Figure 5
10 
R
ON
Delta On Resistance
(3, 5)
1.65 1.65
V
CMD, DAT[3:0]
=0V,
I
ON
=- 2mA
0.85 
Power Supply
I
CC(VDDC)
Quiescent Supply
Current (Card)
1.95 0 V
SW
=0 or V
DDC
, I
OUT
=0 2 µA
I
CC(VDDH1/H2)
Quiescent Supply
Current (Hosts)
1.95 1.95
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 Host Powered Off
1.95
1.95 / 0
0 / 1.95
V
SW
=0 or V
DDx,
I
OUT
=0,
V
CLKI
=V
DDHX
,
V
CLKO
=Open, OE=V
DDC
2 µA
Notes:
3. Guaranteed by characterization, not production tested.
4. On resistance is determined by the voltage drop between the switch I/O pins at the indicated current through the
switch.
5.  R
ON
=R
ON max
– R
ON min
measured at identical V
CC
, temperature, and voltage.