FSSD06BQX_12 FAIRCHILD [Fairchild Semiconductor], FSSD06BQX_12 Datasheet - Page 2

• Manufacturer Part Number: FSSD06BQX_12
• Description: SD/SDIO and MMC Two-Port Multiplexer
• Manufacturer: FAIRCHILD [Fairchild Semiconductor]

© 2007 Fairchild Semiconductor Corporation
FSSD06 • Rev. 1.0.5
Pin Configuration
Pin Definitions
Truth Table
Name
VDDH
VDDC1, VDDC2
/OE
S
1DAT[3:0], 2DAT[3:0], 1CMD, 2CMD
DAT[3:0], CMD
CLK, 1CLK, 2CLK
/OE
LOW
LOW
HIGH
DAT[2]
DAT[3]
DAT[0]
DAT[1]
VDDH
CMD
GND
CLK
Figure 2.
S
LOW
HIGH
X
10
3
4
5
6
7
8
9
2
11
1
Function
CMD, CLK, DAT[3:0] connected to 1CMD, 1CLK, 1DAT[3:0]; 2CLK pulled HIGH via R
CMD, CLK, DAT[3:0] connected to 2CMD, 2CLK, 2DAT[3:0]; 1CLK pulled HIGH via R
All Ports High Impedance; 1CLK, 2CLK pulled HIGH via R
12
MLP Pin Assignments
24
13
23
14
21
18
15
22
20
19
17
16
1CLK
1DAT[0]
1DAT[1]
VDDC1
2DAT[2]
2DAT[3]
2CMD
VDDC2
Output Enable (Active Low)
Description
Power Supply (Host ASIC)
Power Supply (SDIO Peripheral Card Ports)
Select Pin
SDIO Card Ports
SDIO Common Ports
Clock Path Ports
2
DAT[3]
DAT[0]
VDDH
CMD
GND
CLK
Figure 3.
1
2
3
4
5
6
24
7
PU
23
8
UMLP Pin Assignments
22
9
10
21
11
20
12
19
18
17
16
15
14
13
1CLK
1DAT[0]
1DAT[1]
2DAT[2]
2DAT[3]
2CMD
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PU
PU