NXP Semiconductors NXQ1TXH5, User Manual, Page: 4 / 15

NXP Semiconductors
UM11152
NXQ1TXH5DB1355 plugin board
UM11152 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
User manual Rev. 1 — 6 December 2018
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2 NXQ1TXH5DB1355 board connections
Figure 1. NXQ1TXH5DB1355 board connections
The NXQ1TXH5DB1355 board as shown in Figure 1 can be used in combination with the
TTL-232R- 3V3 cable from FTDI.
Table 1 shows the pinout of the connector on the FTDI cable. The NXQ1TXH5DB1355
board only uses GND, TXD, and RXD. The FTDI cable connects to header X4 of the
NXQ1TXH5DB1355 board.
Table 1. Pinout connector FTDI cable
Pin number Name Color Description
1 GND black device ground supply pin
2 CTS# brown clear to send control input/handshake signal
3 VCC red +5 V output
4 TXD orange transmit asynchronous data output
5 RXD yellow receive asynchronous data input
6 RTS# green receive to send control output/handshake signal
The NXQ1TXH5DB1355 is connected to the I
2
C interface of the NXQ1TXH5. The pull-
up resistors for the SDA and SCL lines are already on the NXQ1TXH5DB1355 board.
Connect the SDA, SCL, and GND pins of header X3 to the design with the NXQ1TXH5.
To power the components on the NXQ1TXH5DB1355 board, connect a 5 V supply to pin
9 and its GND connection. This supply can be obtained from a separate lab supply or
from the NXQ1TXH5 application.