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Chapter 27
Electrical Specification
User’s Manual U16702EE3V2UD00
27.6 Voltage Regulator Characteristics
27.6.1 General
condition
-40°C
≤
T
A
≤
+110°C (µPD70F3402)
-40°C
≤
T
A
≤
+85°C (µPD70F3403, µPD70F3403A)
V
SS0
=V
SS1
=AV
SS
=BV
SS
=0 V
27.6.2 Regulator
0
27.6.3 Regulator
1
Figure 27-2:
Voltage Regulator Startup Timing
Notes: 1.
Make sure that RESET = V
SS
= 0 V when starting V
DD0/1
.
2.
The on-chip POC function generates a reset signal during the regulator stabilization time
(no external control of the RESET signal pin required)
Parameter
Symbol
Condition
MIN.
TYP.
MAX.
Unit
Output voltage stabiliza-
tion time
t
REG0
After V
DD
reaches 4.0 V,
C= 1.0 µF
-
-
1
ms
Parameter
Symbol
Condition
MIN.
TYP.
MAX.
Unit
Output voltage stabiliza-
tion time
t
REG1
After V
DD
reaches 4.0 V,
C= 4.7 µF
-
-
1
ms
V
DD0/1
V
RO
RESET
t
REG0/1
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