RX21A_15 Datasheet, PDF (115/132 Pages) Renesas Technology Corp – Renesas MCUs

RX21A Group
5. Electrical Characteristics
5.10 Power-on Reset Circuit and Voltage Detection Circuit Characteristics
Table 5.44 Power-on Reset Circuit and Voltage Detection Circuit Characteristics (1)
Conditions: VCC = AVCC0 = AVCCA, VSS = AVSS0 = AVSSA = VREFL = VREFL0 = VREFDSL = 0 V, T_a = –40 to +105°C
Item
Symbol
Min.
Typ.
Max. Unit Test Conditions
Voltage detection
level
Power-on reset
(POR)
Low power
consumption
function disabled*¹
V_POR
1.30
1.40
1.55
V Figure 5.64 and
Figure 5.65
Low power
consumption
function enabled*²
1.00
1.20
1.45
Voltage detection circuit (LVD0)*³
Voltage detection circuit (LVD1)*⁴
V_{det0_1}
V_{det0_2}
V_{det1_7}
V_{det1_8}
V_{det1_9}
V_{det1_A}
V_{det1_B}
V_{det1_C}
V_{det1_D}
V_{det1_E}
V_{det1_F}
2.70
2.80
2.90
1.80
1.90
2.00
2.95
3.10
3.25
2.85
2.95
3.05
2.70
2.80
2.90
2.55
2.65
2.75
2.40
2.50
2.60
2.25
2.35
2.45
2.10
2.20
2.30
1.95
2.05
2.15
1.80
1.90
2.00
V Figure 5.66
V Figure 5.67
At falling edge
VCC
Note: • These characteristics apply when noise is not superimposed on the power supply.
Note 1. When the CPU is in a mode other than software standby and deep software standby modes, when the CPU transits to software
standby mode with the FHSSBYCR.SOFTCUT[2] bit set to 0, or when the CPU transits to deep software standby mode with the
DPSBYCR.DEEPCUT1 bit set to 0.
Note 2. When the CPU transits to software standby mode with the FHSSBYCR.SOFTCUT[2] bit set to 1 or when the CPU transits to
deep software standby mode with the DPSBYCR.DEEPCUT1 bit set to 1.
Note 3. # in the symbol Vdet0_# denotes the value of the LDSEL[1:0] bits.
Note 4. # in the symbol Vdet1_# denotes the value of the LVDLVLR.LVD1LVL[3:0] bits.
R01DS0129EJ0110 Rev.1.10
Aug 28, 2014
Page 115 of 132