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Texas Instruments BUF16821 Evaluation Module USB BUF16821EVM-USB BUF16821EVM-USB Datenbogen

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BUF16821EVM-USB Hardware Setup
2.2
Signal Definitions of J1 (25-Pin Male DSUB)
lists the various signals connected to J1 on the BUF16821EVM-USB test board.
Table 3. Signal Definition of J1 (25-Pin Male DSUB) on BUF16821EVM-USB
Board
Pin on J1
Signal
BUF16821 Pin
1
N/C
No connection
2
N/C
No connection
3
N/C
No connection
4
N/C
No connection
5
N/C
No connection
6
N/C
No connection
7
N/C
No connection
8
N/C
No connection
9
I2C_SCK
No connection
10
I2C_SDA2
No connection
11
N/C
No connection
I
2
C clock signal (SCL) channel 1; can be
12
I2C_SCK_ISO
disconnected using a switch
I
2
C data signal (SDA) channel 1; can be
13
I2C_SDA_ISO
disconnected using a switch
14
N/C
No connection
15
N/C
No connection
16
N/C
No connection
Switched 3V/5V power. Note that when
17
V
DUT
power is switched off, digital I/O is also
switched off.
18
V
CC
No connection
19
N/C
No connection
20
N/C
No connection
21
GND
Common ground connection
22
SPI_SCK
No connection
23
SPI_CS1
No connection
24
SPI_DOUT1
No connection
25
SPI_DIN1
No connection
6
BUF16821EVM-USB Evaluation Board and Software Tutorial
SBOU106
–
May 2011
Copyright
©
2011, Texas Instruments Incorporated