Target Board Kit S3A1 (TB-S3A1)
Hardware Layout
R12UM0022EU0100 Rev.1.00
Page 9 of 36
Feb 6, 2018
These test points supply voltage directly to the S3A1 MCU, the S124 J-Link MCU, and other
on-board circuitry. Use caution to ensure that any voltage connected in this manner meets the
power requirements for the active features. Power sources that are outside of the published
operating range for the active devices may cause degraded performance or damage the board.
Option 4: Pin Headers
TB-S3A1 can also be powered through the following pin-headers on the board.
•
J1 (pin J1-15 for +3.3V, pin J1-17 for Return)
•
J2 (pin J2-10 for +3.3V, pin J2-12 for Return)
•
J4 (pin J4-37 for +3.3V, pin J4-36 for Return)
Copper jumper E35 must be open for any of these configurations.
The pin headers supply voltage directly to the S3A1 MCU, the S124 J-Link MCU, and other
on-board circuitry. Use caution to ensure that any voltage connected in this manner meets the
power requirements for the active features. Power sources that are outside of the published
operating range for the active devices may cause degraded performance or damage the board.
See Section 4.5 for more information on the Pin Headers.
Figure 6 5V power input circuit
Figure 7 3.3V power regulator circuit
Summary of Contents for S3A1
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