859
Power Supply Scheme
Chapter 25
Preliminary User’s Manual U17566EE1V2UM00
25.2.3
Device µPD70F3427
Figure 25-5
gives an overview of the allocation of power supply pins of the
µPD70F3427 devices. Their functional assignment is depicted in more detail in
Figure 25-6
.
Note
The diagrams do not show the exact pin location.
Figure 25-5
Power supply pins for µPD70F3427
Figure 25-6
Functional assignment of power supply pins (µPD70F3427)
ADC
VC
A
V
R
E
F
A
V
D
D
A
V
S
S
CPU
RAM
Flash
S
tandard I
/O
Reg
ulator 0
B
V
D
D
5
0
B
V
S
S
5
0
VSS50
VDD50
REGC0
S
M
V
S
S
5
1
S
M
V
D
D
5
1
S
M
V
S
S
5
0
S
M
V
D
D
5
0
VSS51
REGC1
VDD51
BVSS50
BVDD50
Stepper Motor I/O
ClockGen
Peripherals
POC
VDD52
REGC2
VSS52
Regulator
1
BVDD51
BVSS51
DVDD51
DVSS51
LCD Bus I/F I/O
DV
DD50
D
[31:16]
DV
SS50
Ext. Mem. I/F I/O
MV
SS50 to
MV
SS54
MV
SS50 to
MV
SS54
VDD50
VDD51
VSS50
VSS51
VDD52
VSS52
BVDD50
BVDD51
BVSS50
BVSS51
DVDD50
DVSS50
Stepper
Motor
Buffer
SMVDD50
SMVDD51
SMVSS50
SMVSS51
ADC
AVDD
AVREF
AVSS
Voltage
Compa-
rators
I/O
Buffer
LCD I/O
Buffer
LCD I/O
Buffer
LCD
voltage
generation
Reg
0
REGC2
REGC1
REGC0
Peripherals
ClockGen
POC
Core
Reg
1
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