33.3 General Operating Ratings

The device must operate within the ratings listed in this section for all other electrical characteristics and typical characteristics of the device to be valid.
Table 33-2. General Operating Conditions
SymbolDescriptionConditionMin.Max.Unit
VDDOperating supply voltage1.8(2)5.5V
TOperating temperature range(1)Standard temperature range-40105°C
Extended temperature range(3)-40125
Note:
  1. Refer to the device ordering codes for the device temperature range.
  2. Operation is ensured down to 1.8V or BOD triggering level, VBOD. VBOD may be below the minimum Operating Supply Voltage for some devices. Where this is the case, the device is tested down to VDD = VBOD during production.
    • During Chip Erase, the BOD is forced ON. If the supply voltage VDD is below the configured VBOD, the Chip Erase will fail. See Chip Erase.
  3. The extended temperature range is only ensured down to 2.7V.
Table 33-3. Operating Voltage and Frequency
SymbolDescriptionConditionMin.Max.Unit
CLK_CPUOperating system clock frequency

VDD = [1.8, 5.5]V
T = [-40, 105]°C(1)

05MHz

VDD = [2.7, 5.5]V
T = [-40, 105]°C(2)

010

VDD = [4.5, 5.5]V
T = [-40, 105]°C(3)

020

VDD = [2.7, 5.5]V
T = [-40, 125]°C(2)

08

VDD = [4.5, 5.5]V
T = [-40, 125]°C(3)

016
Note:
  1. Operation ensured down to BOD triggering level, VBOD with BODLEVEL0.
  2. Operation ensured down to BOD triggering level, VBOD with BODLEVEL2.
  3. Operation ensured down to BOD triggering level, VBOD with BODLEVEL7.

The maximum CPU clock frequency depends on VDD. As shown in the following figure, the maximum frequency vs. VDD is linear between 1.8V < VDD < 2.7V and 2.7V < VDD < 4.5V.

Figure 33-1. Maximum Frequency vs. VDD for [-40, 105]°C, Standard Temperature Range
Figure 33-2. Maximum Frequency vs. VDD for [-40, 125]°C, Extended Temperature Range