User`s manual

23
MCU
VHCT125
VHC125
CB3Q3306
P24 to P27
P10
P60
MCU
VHCT125
VHC125
CB3Q3306
P10
P60
MCU
VHCT125
VHC125
PCA9306
P14 to P17
LVC07
VCC
VCC
VCC
47 kΩ
User system
interface cable
47 kΩ
User system
interface cable
User system
interface cable
47 kΩ
1 kΩ
3 V
P14 to P17
P24 to P27
1 kΩ
3 V
Figure 3.2 User System Interface Circuits (4)