Texas Instruments TMUXRTJ-RRQEVM, User Manual

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5 Header Connections and Test Points
There are 20 headers located around the board with designators J1 through J20. These 3-by-2 headers serve as
connections to power planes and to signals of the DUT (U1). Each pin of the DUT has similar header and test
point configuration. At four different locations around the board, a legend shows the connections of the pins of
the nearby five headers.
Figure 5-1 shows a representation of the header associated with pin 1 of U1.
Figure 5-1. Header J1 for U1.1
The silkscreen legend represents the connections of the pins of J1. Figure 5-2 shows the pin numbers of this
header from this same perspective.
www.ti.com Header Connections and Test Points
SCDU027 – AUGUST 2021
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TMUXRTJ-RRQEVM User's Guide 7
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