NXP Semiconductors PCA9955BTW-ARD, Руководство пользователя, Страница: 6 / 38

NXP Semiconductors
UM11761
PCA9955BTW-ARD evaluation board
4.2 Kit featured components
Figure 1 identifies the main components on the board. The main elements are called
out in the picture. The DUT (U2) is located in the center of the board. The on-board
LEDs connected to the driver are placed around the PCA9955B IC. The Arduino port
connectors (J5, J6, J35, J36) are located on the bottom side of the board.
Figure 1. PCA9955BTW-ARD arduino board: top view (up) and bottom view (down)
4.3 Schematic diagram
The schematic diagram of PCA9955BTW-ARD is available at URL: http://www.nxp.com/
PCA9955BTW-ARD .
4.4 General description
Figure 2 shows the block diagram of PCA9955BTW-ARD daughterboard. The block
diagram includes the Arduino interface (J5, J6, J35, J36), the expansion connectors for
UM11761 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2022. All rights reserved.
User manual Rev. 1.0 — 18 March 2022
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