11.1.11.3.2 Power Consumption in Idle and Ultra Low-Power Modes

Table 11-79, Figure 11-56 and Figure 11-57 provide the SAMA7D6 average power consumption in Idle, ULP0 and ULP1 modes versus temperature measured on a few typical devices. They do not provide maximum power consumption specifications.
All power supply inputs are powered within their operating range and in particular VDDCORE = 1.05V, VDDCPU = 1.05V.
There is no consumption on the device I/Os. To reach the best possible power consumption figures, it is important to set each I/O of the device to an appropriate state (pull-up/pull-down, etc.) with respect to the external components connected to these I/Os.
In ULP1, the embedded memories are automatically switched to Deep Sleep mode (default operation, see Embedded Memories Low-Power Management). In ULP0, this is not the case.
USB transceivers are disabled.
All peripheral clocks are disabled.
Current measurement is as shown in the following figure.

Figure 11-55. Current Measurement in ULP0, ULP1 and Idle Modes

Table 11-79. Typical Power Consumptions and Wake-Up Times in Idle, ULP0, ULP1 Modes
Low-Power Mode	P_CORE/P_CPU (mW)
Low-Power Mode	T_J=-40°C		T_J= 25°C		T_J=50°C		T_J=85°C		T_J=105°C		T_J=125°C		Wake-Up Time (µs)
Idle@200 MHz	128.6	29.7	133.1	34.2	137.9	39.9	152.6	56.4	165.7	72.7	186.9	96.0	10 x t_{CPU_CLK}
ULP1	0.3	0.2	3.0	2.4	7.1	5.5	20.3	15.4	34.9	25.9	56.4	40.8	15
ULP0@12 MHz	2.9	0.8	5.9	4.4	10.3	9.6	25.0	25.6	41.3	42.4	65.2	66.4	15
ULP0@32 kHz	2.3	0.4	5.3	4.0	9.7	9.2	24.5	25.3	40.7	42.1	64.9	66.4	5600

The figures below plot the power consumption of the device in ULP0, ULP1 and Idle modes. They show the current consumption in VDDCPU, VDDCORE and VDDIN33:

Power (mW) = I_DDCPU x 1.05V + I_DDCORE x 1.05V + P_IN33 with I_DDCPU and I_DDCORE as measured in the above table. P_IN33 contribution is 2.2 mW in ULP0 and ULP1 modes and 40 mW in Idle mode (application-dependent).

Figure 11-56. Typical Power Consumption in Idle Mode vs. Junction Temperature

Figure 11-57. Typical Power Consumption in ULP0 and ULP1 Modes vs. Junction Temperature

The following table provides the specifications for ULP1 mode current consumption on VDDCORE, VDDCPU and VDDIN33.

Table 11-80. Power Consumption in ULP1 Mode
Symbol	Parameter	Conditions	Min	Max	Unit
P_{CORE_CPU}	Power consumption on VDDCORE and VDDCPU	VDDCORE = 1.05V VDDCPU = 1.05V T_J = 105°C	–	120	mW
P_{CORE_CPU}	Power consumption on VDDCORE and VDDCPU	VDDCORE = 1.05V VDDCPU = 1.05V T_J = 125°C	–	194	mW
P_IN33	Power consumption on VDDIN33	VDDIN33 = 3.3V	–	2.2	mW