Specifications

WM_PRJ_Q2501_PTS_002 - 001
March 2004
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3.3.3.2 Two-wire bus
The 2-wire interface includes clock and data signals complying with a standard
96 kHz interface.
Each signal has to be pulled-up to VCC via an external 2.2 kΩ resistor.
The maximum speed transfer is 400 kbits/s.
Pin description
Signal Pin # I/O I/O type Description
SCL/SPI_CLK 30 O 3X Serial Clock
SDA/SPI_IO 28 I/O CMOS/3X Serial Data
WISMO Q2501
Application
processor
(DTE)
SDA/SPI_IO
SCL/SPI_CLK
Figure 15: example of 2 wire bus application