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2 Power Supply
This chapter explains the operating voltage of the S1C33210.
2.1 Power Supply Pins
The S1C33210 has the power supply pins shown in Table 2.1.1.
Pin name
V
8, 27, 47, 74, 93, 111 Power supply (+)
DD
V
3, 22, 39, 54, 67, 90,
SS
AV
DD
2.7 to 3.6 V
2.7 to 3.6 V
GND
2.2 Operating Voltage (V
The core CPU, internal peripheral circuits, and external signal interfaces operate on the voltage difference between
the V
and V
pins. The following operating voltage can be used:
DD
SS
V
= 2.7 V to 3.6 V (V
DD
Note: The S1C33210 has 6 V
pins. Do not open any of them.
The operating clock frequency range (OSC3) is 5 MHz to 50 MHz with this voltage.
S1C33210 PRODUCT PART
Table 2.1.1 Power Supply Pins
Pin No.
QFP15-128
Power supply (-); GND
102, 104
30
Analog system power supply (+); AV
V
DD
AV
DD
V
SS
Figure 2.1.1 Power Supply System
, V
DD
= GND)
SS
pins and 8 V
DD
Function
Internal
CPU core
peripheral
circuit
I/O
interface circuit
Analog circuits
(A/D converter)
)
SS
pins. Be sure to supply the operating voltage to all the
SS
EPSON
2 POWER SUPPLY
= V
DD
DD
I/O pins
A-11
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