Datasheet

Section 23 Electrical Characteristics
Rev. 1.50 Sep. 18, 2007 Page 517 of 584
REJ09B0240-0150
23.2.7 Power-Supply-Voltage Detection Circuit Characteristics (Optional)
Table 23.9 Power-Supply-Voltage Detection Circuit Characteristics
V
SS
= 0.0 V, T
a
= –20 to +75°C/–40 to +85°C, unless otherwise indicated.
Values
Item Symbol
Test
Condition
Min. Typ. Max. Unit
Power-supply falling detection
voltage
Vint (D) LVDSEL = 0 3.5 3.7  V
Power-supply rising detection
voltage
Vint (U) LVDSEL = 0  4.1 4.3 V
Reset detection voltage 1*
1
Vreset1 LVDSEL = 0  2.3 2.6 V
Reset detection voltage 2*
2
Vreset2 LVDSEL = 1 3.3 3.6 3.9 V
Lower-limit voltage of LVDR
operation
V
LVDRmin
1.0   V
Notes: 1. This voltage should be used when the falling and rising voltage detection function is
used.
2. Select the low-voltage reset 2 when only the low-voltage detection reset is used.