Texas Instruments TMUX-24PW-EVM, User Manual, Page: 10 / 19

Terminal block J25 is the power input for the board. Three power rails (VSS, GND, and VDD) are labeled on the
board’s silkscreen layer, indicating the identities of the input pins of the header. Connect the power supply rails at
this terminal block to power the board.
6 TMUX-24PW-EVM Setup
Figure 6-1. DUT Footprint U1
The TMUX-24PW-EVM will not have any device connected at footprint U1, and there are not any devices
included with the EVM for this footprint. Attach any compatible Texas Instruments TMUX device to this location,
which will serve as the Device Under Test (DUT). Compatible devices include 24-pin parts with PW package
names.
The headers of the TMUX-24PW-EVM can be easily connected to a power rail using 2.54 mm shunts on J1-J24.
Connecting the shunt between pin 4 of the header and pin 3 (GND) to connect the corresponding pin of U1 to
GND. Alternatively, the pins of U1 can be shorted to VDD or VSS by connecting between pin 4 of the header
and pin 2 or pin 6 respectively.
Figure 5-2 and Table 5-1 includes detailed descriptions of the connections on J1
through J24.
Figure 6-2. Signal Line Circuitry (3D)
As shown in Figure 6-2 and Figure 6-3 as R4 and R16 on the J4 (pin 4 of U1) signal line, the TMUX-24PW-EVM
includes 0 Ω series resistors (0805 package) on each signal line.
TMUX-24PW-EVM Setup www.ti.com
10 TMUX-24PW-EVM User's Guide SCDU026 – JULY 2021
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