Power Supply; Power Supply Pins; Operating Voltage; Dd Ss - Epson CMOS 32-Bit Single Chip Microcomputer S1C33L03 Technical Manual

2 POWER SUPPLY

2 Power Supply
This chapter explains the operating voltage of the S1C33L03.

2.1 Power Supply Pins

The S1C33L03 has the power supply pins shown in Table 2.1.1.
Pin name
V
DD
V 3,27,45,66,82,98,105,114,116,136 Power supply (-); GND
SS
V

DDE

AV
DDE
1.8 to 3.6 V
1.8 to 5.5 V
1.8 to 5.5 V
GND
2.2 Operating Voltage (V
The core CPU and internal peripheral circuits operate with a voltage supplied between the V
following operating voltage can be used:
V = 1.8 V to 3.6 V (V
DD SS
Note: The S1C33L03 has 4 V
pins. Do not open any of them.
The operating clock frequency range (OSC3) is 5 MHz to 50 MHz with this voltage.
A-12
Table 2.1.1 Power Supply Pins
Pin No.
8,51,78,127
21,59,91,132
36
V
DD
V
DDE
AV
DDE
V
SS
Figure 2.1.1 Power Supply System
, V
DD
= GND)
pins and 10 V
DD SS
Function
Power supply (+) for the internal logic
Power supply (+) for the I/O block
Analog system power supply (+); AV
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
EPSON
= V
DDE DDE
I/O pins
and V pins. The
DD SS
S1C33L03 PRODUCT PART