Connection Diagrams
Figure 1. MicroPak™ (Top View)
Figure 2. Analog Symbol
Figure 3. DQFN (Top Through View)
Figure 4. MSOP (Top Through View)
Pin Descriptions
Pin # MicroPak™ / MSOP
Pin # DQFN
Pin Names
Description
Select Input
Bus B
1
2
S
2, 3, 7, 8
3, 5, 10, 12
1B1, 1B2, 2B2, 2B1
5
4, 6
9
7
GND
1A, 2A
OE
Ground
6, 9
12
Bus A
Bus Switch Enable
Supply Voltage
10
14
VCC
Truth Table
S
OE
Function
Disconnect
A=B1
Don’t Care
LOW
HIGH
LOW
LOW
HIGH
A=B2
© 2005 Fairchild Semiconductor Corporation
FSUSB20 • Rev. 1.0.3
www.fairchildsemi.com
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