R01UH0822EJ0100 Rev.1.00
Page 1024 of 1041
Jul 31, 2019
RX13T Group
32. Electrical Characteristics
32.9
Power-On Reset Circuit and Voltage Detection Circuit Characteristics
Note:
These characteristics apply when noise is not superimposed on the power supply. When a setting is made so that the voltage
detection level overlaps with that of the voltage detection circuit (LVD2), it cannot be specified which of LVD1 and LVD2 is used
for voltage detection.
Note 1. n in the symbol Vdet0_n denotes the value of the OFS1.VDSEL[1:0] bits.
Note 2. n in the symbol Vdet1_n denotes the value of the LVDLVLR.LVD1LVL[3:0] bits.
Note 3. n in the symbol Vdet2_n denotes the value of the LVDLVLR.LVD2LVL[1:0] bits.
Table 32.39
Power-On Reset Circuit and Voltage Detection Circuit Characteristics (1)
Conditions: VCC = 2.7 V to 5.5 V, AVCC0 = VCC to 5.5 V, VSS = AVSS0 = 0 V, T
a
= –40 to +105°C
Item
Symbol
Min.
Typ.
Max.
Unit
Test Conditions
Voltage detection
level
Power-on reset (POR)
V
POR
1.35
1.50
1.65
V
Voltage detection circuit
(LVD0)*
V
det0_0
3.67
3.84
3.97
Figure 32.40
At falling edge VCC
V
det0_1
2.70
2.82
3.00
V
det0_2
2.37
2.51
2.67
Voltage detection circuit
(LVD1)*
V
det1_0
4.12
4.29
4.42
Figure 32.41
At falling edge VCC
V
det1_1
3.98
4.14
4.28
V
det1_2
3.86
4.02
4.16
V
det1_3
3.68
3.84
3.98
V
det1_4
2.99
3.10
3.29
V
det1_5
2.89
3.00
3.19
V
det1_6
2.79
2.90
3.09
V
det1_7
2.68
2.79
2.98
V
det1_8
2.57
2.68
2.87
Voltage detection circuit
(LVD2)*
V
det2_0
4.08
4.29
4.48
Figure 32.42
At falling edge VCC
V
det2_1
3.95
4.14
4.35
V
det2_2
3.82
4.02
4.22
V
det2_3
3.62
3.84
4.02