1.Introduction Page.1-13
I2C connection [1MHz-SCL / 1MHz-SDA]
( If a target device doesn’t have power supply)
If REX-USB61 supply power(5.0V) to a target device, please use utility
software or application which uses an API library.
( The library is called usb61_power_control(). Refer to (4-4) at Chapter 4.)
ATMEL:
AT24C02B
SDA
SCL
Power
●
●
ATMEL:
AT24C02B
SDA
SCL
Power
●
●
●
●
●
●
※1
●
●
●
●
Be sure to connect the
power terminal.
power supply
REX-USB61 output
5V
Power
1MHz-SDA
1MHz-SCL
●
5V
●
●
●
●
●
●
●
●
●
A target device
supply power.
Address
50h
GND
REX-USB61
Address
51h
* Only after providing power to all devices, set on pull-up resistance.
*1 The pull-up resistance on REX-USB61 is 10K
Ω
.
If necessary, add pull-up resistance.
