RX220_15 Datasheet, PDF (91/107 Pages) Renesas Technology Corp – Renesas MCUs

RX220 Group
5. Electrical Characteristics
Table 5.38 Power-on Reset Circuit and Voltage Detection Circuit Characteristics (2)
Conditions: VCC = AVCC0, VSS = AVSS0 = VREFL0 = 0 V, T_a = –40 to +105°C
Item
Symbol
Min.
Typ. Max. Unit
Test Conditions
Voltage detection
level
Voltage detection circuit (LVD2)*¹
Internal reset time Power-on reset time
Voltage monitoring 0 reset time
Voltage monitoring 1 reset time
Voltage monitoring 2 reset time
Minimum VCC down time*²
Response delay time
LVD operation stabilization time (after LVD is enabled)
V_{det2_0}
V_{det2_1}
V_{det2_2}
V_{det2_3}
V_{det2_4}
V_{det2_5}
V_{det2_6}
V_{det2_7}
V_{det2_8}
V_{det2_9}
V_{det2_A}
V_{det2_B}
V_{det2_C}
V_{det2_D}
V_{det2_E}
V_{det2_F}
V_CMPA2
t_POR
t_LVD0
t_LVD1
t_LVD2
t_VOFF
t_det
Td_(E-A)
4.00
3.85
3.70
3.55
3.40
3.25
3.10
2.95
2.85
2.70
2.55
2.40
2.25
2.10
1.95
1.80
1.18
—
—
—
—
200
—
—
4.15
4.00
3.85
3.70
3.55
3.40
3.25
3.10
2.95
2.80
2.65
2.50
2.35
2.20
2.05
1.90
1.33
9
9
1.4
1.4
—
—
—
4.30
4.15
4.00
3.85
3.70
3.55
3.40
3.25
3.05
2.90
2.75
2.60
2.45
2.30
2.15
2.00
1.48
—
—
—
—
—
200
15
V Figure 5.55
At falling edge VCC
EXVCCINP2 = 1
ms Figure 5.52
Figure 5.53
Figure 5.54
Figure 5.55
µs Figure 5.51
µs Figure 5.52
µs Figure 5.54 and
Figure 5.55
Power-on reset enable time
t_W(POR)
1
—
—
ms Figure 5.52
VCC = 0.9 V or lower
Hysteresis width (LVD1 and LVD2)
V _LVH
—
100
—
mV When selection is from
among VdetX_0 to 7.
—
50
—
When selection is from
among VdetX_8 to F.
Note: • These characteristics apply when noise is not superimposed on the power supply.
Note 1. # in the symbol Vdet2_# denotes the value of the LVDLVLR.LVD2LVL[3:0] bits.
Note 2. The minimum VCC down time indicates the time when VCC is below the minimum value of voltage detection levels V_POR, V_det0,
V_det1, and V_det2 for the POR/ LVD.
R01DS0130EJ0110 Rev.1.10
Dec 20, 2013
Page 91 of 105