MB3U Datasheet, PDF (2/7 Pages) IC-Haus GmbH – BiSS TO PC-USB ADAPTER

MB3U, MB3U-I2C
BiSS TO PC-USB ADAPTER
BiSS Plug Pin Configuration
Pin Name
1 VB
2 MA +
3 MA -
4 VDD
5 MO -
6 GND
7 SL +
8 SL -
9 MO +
Function
+12 V Sensor supply (90 mA_max)*
Optional: powered by ext. supply
Clock output P
Clock output N
+5 V Sensor supply (50 mA_max)*
+5 V High-level signal
Optional: master data output N
Ground (0 V)
Data input P
Data input N
0 V Low-level signal
Optional: master data output P
Power Supply Socket
Inner contact
Negative pole
Outer contact
Pos. pole (9 to 15 V DC, 1 A_max)
Power Supply Socket
2-pole, 6.6/1.9 mm
DIN 45323
Rev B2, Page 2/7
USB-B Plug
4-pole
I2C Plug
10-pole
2
1
size approx.
42 x 95 x 24 mm
BiSS Plug
9-pole SUB-D
Figure 2: iC-MB3 iCSY MB3U-I2C
PC-USB Adapter With I2C Extension
I2C Plug Pin Configuration For I2C-Link
PIN Name
The BiSS and I2C to PC-USB Adapter has an addi- ^{1 SCL}
tional plug for I2C or SPI communication. The USB ^{2 GND}
port supplies the sensors via the I2C plug with 5 V (up ^{3 -}
to 250 mA, through Pin 4 - no galvanic isolation). If ^{4 +5 V}
there is load applied to the BiSS connector, the max- ^{5 -}
imum current supplied via the I2C plug is decreased. ^{6 -}
For more power, an additional external power supply is ^{7 SDA}
recommended (the wall power supply does not supply ^{8 -}
the I2C plug, see Figure 3). I2C multi-master capability ^{9 SDA}
is not provided.
10 GND
Function
Serial Clock Line
Ground
Reserved
Supply Voltage
Reserved
Reserved
Serial Data Line
Reserved
Serial Data Line
Ground
Note: To use I2C, pin 7 and pin 9 must be short.
Technical Data I2C / SPI Interface
• Serial computer bus communication I2C
• Serial computer bus communication SPI
• Sensor supply sourced from the USB port
(+5 V up to 250 mA) without isolation
• I2C data rates of up to 320 kHz
• USB 2.0 compatible
I2C Plug Pin Configuration For SPI-Link
PIN Name
1 SCLK
2 GND
3-
4 +5 V
5-
6-
7 MOSI
8 NCS
9 MISO
10 GND
Function
Serial Clock
Ground
Reserved
Supply Voltage
Reserved
Reserved
Master Out Slave IN
Not Chip Select
Master In Slave Out
Ground
* 100 mA for +5 V and +12 V available starting from 2008