43.5 Power Supply DC Module Electrical Specifications

Table 43-6. Power Supply DC Electrical Specifications
AC CharacteristicsStandard Operating Conditions: VDD = 1.9V to 3.6V (unless otherwise stated) Operating Temperature: -40°C ≤ TA ≤ +85°C for Industrial Temp -40°C ≤ TA ≤ +125°C for Extended Temp
Param. No.SymbolCharacteristicsMin.Typ.Max.UnitsConditions
REG_20VDDVoltage range of VDD (main power supply)1.93.33.6VOperating range of 1.9-3.6V
REG_39AVDD Analog VDD supply input voltage rangeVDD-0.3VDD+0.3VOperating range
REG_21AVSSAnalog VSS supplyVSS-0.3VSS+0.3VGND
REG_36VDDCOREVDDCORE voltage range1.2VCLDO output voltage
REG_37VDDIOVDDIO input voltage range3.33.6V
REG_38RFLDO_OUTRF LDO power supply1.2VRF LDO output voltage
REG_40VDDREG (PMU_MLDO_OUT)PMU output voltage - regulator voltage range1.35VPMU output voltage
REG_40A

VPMU_VDD

(Buck mode)

PMU input supply voltage range2.43.33.6VInput supply voltage range (Buck mode)
REG_40BVDDREG_IN (MLDO mode)PMU input supply voltage range1.93.33.6VInput supply voltage range (MLDO mode)
Note:
  • These parameters are characterized but not tested in manufacturing.
  • VDD and AVDD must be at the same voltage level.
  • For more details on power supply pins filtering, refer to the Design Package available on the product page.
Table 43-7. POR Electrical Characteristics
AC CharacteristicsStandard Operating Conditions: VDD = 1.9V to 3.6V (unless otherwise stated) Operating Temperature: -40°C ≤ TA ≤ +85°C for Industrial Temp -40°C ≤ TA ≤ +125°C for Extended Temp
Param. No.SymbolCharacteristicsMin.Typ.Max.UnitsConditions
DC16VPORVDD Start voltage to ensure internal Power-on Reset signal 1.521.58VVDD voltage must remain at VSS for a minimum of 200 μs to ensure POR. VDDIO Power-up/Power-down (See VDDIO Ramp Rate)
DC17SVDD_RVDDIO Rise ramp rate to ensure internal Power-on Reset signal0.030.115V/msFailure to meet this specification may lead to start-up or unexpected behaviors
DC18SVDD_F

VDDIO Falling ramp rate to ensure internal Power-on Reset signal

1.39V/msFailure to meet this specification may cause the device to not detect reset
Note: These parameters are characterized but not tested in manufacturing.
Table 43-8. BOR Electrical Characteristics
AC CharacteristicsStandard Operating Conditions: VDD = 1.9V to 3.6V (unless otherwise stated) Operating Temperature: -40°C ≤ TA ≤ +85°C for Industrial Temp -40°C ≤ TA ≤ +125°C for Extended Temp
Param. No.SymbolCharacteristicsMin.Typ.Max.UnitsConditions
B011VBHYSBrown-out hysteresis5153.454mV
B012 VZPBOR Zero-power BOR 1.9 V
Note: These parameters are characterized but not tested in manufacturing.
Table 43-9. Reset Timing Characteristics
AC CharacteristicsStandard Operating Conditions: VDD = 1.9V to 3.6V (unless otherwise stated) Operating Temperature: -40°C ≤ TA ≤ +85°C for Industrial Temp -40°C ≤ TA ≤ +125°C for Extended Temp
Param. No.SymbolCharacteristicsMin.Typ.Max.UnitsConditions
SY00TPUPower-up period400600μs
SY02TSYSDLYSystem delay period before first instruction is fetched1 μs + 8 SYSCLK cycles
SY20TMCLRMCLR pulse width (low)2μsMinimum reset active time to guarantee MCU reset
SY30TBORBOR pulse width (low)1μsCRU combines BOR12 and BOR33
Note: These parameters are characterized but not tested in manufacturing.