IDT74FST163212
24-BIT BUS EXCHANGE SWITCH
INDUSTRIAL TEMPERATURE RANGE
24-BIT BUS EXCHANGE
SWITCH
IDT74FST163212
FEATURES:
DESCRIPTION:
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The FST163212 belongs to IDT's family of Bus switches. Bus switch
devices perform the function of connecting or isolating two ports without
providing any inherent current sink or source capability. Thus they
generate little or no noise of their own while providing a low resistance path
for an external driver. These devices connect input and output ports through
an n-channel FET. When the gate-to-source junction of this FET is
adequately forward-biased the device conducts and the resistance between input and output ports is small. Without adequate bias on the gateto-source junction of the FET, the FET is turned off, therefore with no VCC
applied, the device has hot insertion capability.
The low on-resistance and simplicity of the connection between input and
output ports reduces the delay in this path to close to zero.
The FST163212 provides four 12-bit TTL- compatible ports that support
2 way bus exchange. The S0-2 pins control the bus exchange and switch
enable functions.
Bus switches provide zero delay paths
Low switch on-resistance; 4Ω
Ω
TTL-compatible input and output levels
ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
• Available in SSOP and TSSOP packages
FUNCTIONAL BLOCK DIAGRAM
One of 12 Channels
1B 1
1A 1
1B 2
1A 2
Flow Control
S0
S1
S2
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
MAY 2002
1
© 2002 Integrated Device Technology, Inc.
DSC-3508/2
