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MicroTCA-Compliant JTAG Multiplexer - RadioRadar

 
Electronics News
16 years ago

MicroTCA-Compliant JTAG Multiplexer


Maxim Integrated Products introduces the DS26900 JTAG signal multiplexer with secondary port autodetection. As MicroTCA-compliant single-chip solution, the DS26900 provides 3 arbitrated master ports and 18 independent secondary ports, which can be cascaded for up to 36 secondary ports. This device provides port autodetection that allows the master to detect device presence on secondary ports, as well as transparent communication between an arbitrated master and a selected secondary port. The DS26900 is ideal for MicroTCA applications, AdvancedMC carrier blades, system-level diagnostics, test equipment, board-level JTAG applications, and ATCA applications. A solution for star architecture JTAG, the DS26900 also features two 32-bit scratchpad registers, internal pullup/pulldown resistors, and operation up to 50MHz. This device is available in a leaded or lead-free, tiny, 20mm x 20mm, 144-pin LQFP package. It is fully specified over the -40°C to +85°C extended temperature range. Pricing starts at $6.50 (10,000-up, FOB USA).


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