Texas Instruments TMUX-24PW-EVM, User Manual, Page: 7 / 19

5 TMUX-24PW-EVM Header Connections and Test Points
There are 24 headers located around the board with designators J1 through J24. 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 3 of U1.
Figure 5-1. Header J3 for U1.3
The silkscreen legend represents the connections of the pins of J3. Figure 5-2 shows the pin numbers of this
header from this same perspective.
Figure 5-2. Pinout of Headers
Table 5-1 also shows the connections.
Table 5-1. Connections by Header Pin Number
Header pin number Connection
1 No connection
2 VDD
3 GND
4 U1
5 GND
6 VSS
For all headers J1 through J24, the connections are the same, but are rotated by a multiple of 90° according to
their position on the board. A legend is included for each rotation.
www.ti.com TMUX-24PW-EVM Header Connections and Test Points
SCDU026 – JULY 2021
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TMUX-24PW-EVM User's Guide 7
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