Texas Instruments DAC43401, User Manual, Page: 9 / 31

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9 SLAU805 – July 2019
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DAC53401EVM
Table 6. BOOSTXL-DAC-PORT J13 Pin Definitions
Pin# Signal Description
11 GPIO General-purpose I/O
12 CS SPI CS or general-purpose I/O
13 GPIO SPI
14 MISO SPI MISO
15 MOSI SPI MOSI
16 RST MCU reset output
17 GPIO General-purpose I/O
18 GPIO General-purpose I/O
19 GPIO General-purpose I/O
20 GND Ground
31 GPIO General-purpose I/O
32 GPIO General-purpose I/O
33 GPIO General-purpose I/O
34 GPIO General-purpose I/O
35 EXT_LDAC External LDAC I/O
36 EXT_LDAC External LDAC I/O
37 SPI_BUF_EN Digital, SPI buffer enable
38 GPIO General-purpose I/O
39 GPIO General-purpose I/O
40 GPIO General-purpose I/O
Table 7. BOOSTXL-DAC-PORT J14 Pin Definitions
Pin# Signal Description
1 +3.3V 3.3-V power supply
2 GPIO General-purpose I/O
3 GPIO General-purpose I/O
4 GPIO General-purpose I/O
5 GPIO General-purpose I/O
6 GPIO General-purpose I/O
7 SCLK_A0 SPI SCLK or I
2
C A0
8 GPIO General-purpose I/O
9 SCL I
2
C SCL
10 SDA I
2
C SDA
21 +5V 5-V power supply
22 GND Ground
23 GPIO General-purpose I/O
24 GPIO General-purpose I/O
25 VDD_SENSE Sense Input for VDD
26 VIO_SENSE Sense Input for VIO
27 GPIO General-purpose I/O
28 GPIO General-purpose I/O
29 GPIO General-purpose I/O
30 GPIO General-purpose I/O