DA6116.010
5 October, 2017
APPLICATION INFORMATION
Application Note 5 – Lower supply voltage MCU communication example 2
A second example where level shifting is needed is shown in the figure below. Open drain buffers are used in the
level shifting between 3V and 5V signal levels. In this example the DATA signal line communication is bi-directional
also on the MCU side.
+3V
+5V
+5V
+3V
4k7
+5V
4k7
DVDD
AVDD
VDD
74LVC1G07
+3V
+5V
4k7
74LVC1G07
MAS6116
MCU
4k7
DATA
GPIO
GPIO
GPIO
GPIO
+3V
+5V
4k7
CLK
XCS
74LVC1G07
+3V
+5V
4k7
74LVC1G07
+3V
+5V
4k7
74LVC1G07
XMUTE
17 (20)
MAS [ MICRO ANALOG SYSTEMS ]
