6. Pin Functions
Regulator (VRIN system)
BGA
QFP
Name
I/O
RESET
Pin description
Regulator input
Connect Cin = 1.0
μF
to each pin.
Make sure to keep this open when not using the
regulator.
Enables the regulator
Set this to the same level as VRIN when using the
regulator.
Make sure to set this to Low when not using the
regulator.
-
4, 47
VRIN
Power
-
-
45
VROUT_Enb
IN
-
VBUS SW (VBUS_5V_IN system)
BGA
QFP
Name
I/O
RESET
Pin description
VBUS generation input
Voltage input pin for built-in VBUS supply function.
The power supply (VSWIN in 8.3.5) should be
provided even when this function is not used.
VBUS output
VBUS output pin for built-in VBUS supply function.
Leave open when this function will not be used.
-
2
VBUS_5V_IN
Power
-
-
1
VBUS_OUT
Power
-
POWER
BGA
QFP
Name
Voltage
Pin description
Power supply for USB
When using regulator: Connect Cout = 1.0
μF.
When not using regulator: Apply the voltage indicated
to the left.
Internal power supply, test power supply, OSC power
supply
When using regulator: Connect Cout = 1.0
μF.
When not using regulator: Apply the voltage indicated
to the left.
Power supply for main CPU I/F
GND
-
5
UVDD3
3.3V
-
46
LVDD
1.8V
-
-
32
3, 6, 20, 43,
48
CVDD
VSS
1.8 to 5.0V
0V
10
Seiko Epson Corporation
S1R72U01 Data Sheet
(Rev. 1.20)
EPSON [ EPSON COMPANY ]
