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SCANSTA112

Part Number	SCANSTA112
Manufacturer	National Semiconductor
Description	7-port Multidrop IEEE 1149.1 (JTAG) Multiplexer
Published	Dec 16, 2005
Detailed Description	SCANSTA112 7-port Multidrop IEEE 1149.1 (JTAG) Multiplexer May 2004 SCANSTA112 7-port Multidrop IEEE 1149.1 (JTAG) Mul...
Datasheet	SCANSTA112 PDF File

Overview

SCANSTA112 7-port Multidrop IEEE 1149.
1 (JTAG) Multiplexer May 2004 SCANSTA112 7-port Multidrop IEEE 1149.
1 (JTAG) Multiplexer General Description The SCANSTA112 extends the IEEE Std.
1149.
1 test bus into a multidrop test bus environment.
The advantage of a multidrop approach over a single serial scan chain is improved test throughput and the ability to remove a board from the system and retain test access to the remaining modules.
Each SCANSTA112 supports up to 7 local IEEE1149.
1 scan chains which can be accessed individually or combined serially.
Addressing is accomplished by loading the instruction register with a value matching that of the Slot inputs.
Backplane and inter-board testing...

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