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XRA1201 Scheda tecnica(PDF) 5 Page - Exar Corporation

Il numero della parte XRA1201
Spiegazioni elettronici  16-BIT I2C/SMBUS GPIO EXPANDER
PDF  17 Pages
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Produttore elettronici  EXAR [Exar Corporation]
Homepage  http://www.exar.com
Logo EXAR - Exar Corporation

XRA1201 Scheda tecnica(HTML) 5 Page - Exar Corporation

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XRA1201/1201P
5
REV. 1.0.0
16-BIT I2C/SMBUS GPIO EXPANDER
1.1.1
I2C-bus Addressing
There could be many devices on the I2C-bus. To distinguish itself from the other devices on the I2C-bus, the
XRA1201/1201P has up to 32 I2C slave addresses using the A2-A0 address lines. Table 1 below shows the
different addresses that can be selected.
TABLE 1: I C ADDRESS MAP
C ADDRESS
GND
SCL
GND
0x20 (0010 000X)
GND
SCL
VCC
0x22 (0010 001X)
GND
SDA
GND
0x24 (0010 010X)
GND
SDA
VCC
0x26 (0010 011X)
VCC
SCL
GND
0x28 (0010 100X)
VCC
SCL
VCC
0x2A (0010 101X)
VCC
SDA
GND
0x2C (0010 110X)
VCC
SDA
VCC
0x2E (0010 111X)
GND
SCL
SCL
0x30 (0011 000X)
GND
SCL
SDA
0x32 (0011 001X)
GND
SDA
SCL
0x34 (0011 010X)
GND
SDA
SDA
0x36 (0011 011X)
VCC
SCL
SCL
0x38 (0011 100X)
VCC
SCL
SDA
0x3A (0011 101X)
VCC
SDA
SCL
0x3C (0011 110X)
VCC
SDA
SDA
0x3E (0011 111X)
GND
GND
GND
0x40 (0100 000X)
GND
GND
VCC
0x42 (0100 001X)
GND
VCC
GND
0x44 (0100 010X)
GND
VCC
VCC
0x46 (0100 011X)
VCC
GND
GND
0x48 (0100 100X)
VCC
GND
VCC
0x4A (0100 101X)
VCC
VCC
GND
0x4C (0100 110X)
VCC
VCC
VCC
0x4E (0100 111X)
GND
GND
SCL
0x50 (0101 000X)
GND
GND
SDA
0x52 (0101 001X)
GND
VCC
SCL
0x54 (0101 010X)
GND
VCC
SDA
0x56 (0101 011X)
VCC
GND
SCL
0x58 (0101 100X)
VCC
GND
SDA
0x5A (0101 101X)
VCC
VCC
SCL
0x5C (0101 110X)
VCC
VCC
SDA
0x5E (0101 111X)
2
A2
A1
A0
I2



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