2.1 Power-on Hours (POH_Q(T_J, VDD))

Table 2-1. Power-on Hours
Ordering Code	Tier	Indicative T_A ⁽¹⁾	T_J	Arm® Core Frequency	VDDCORE	Power-on Hours
SAM9X70-I/4PB SAM9X72-I/4PB SAM9X75-I/4PB	Industrial	85°C	T_J100°C	800 MHz 600 MHz	1.15 V 1.05 V	9207 Hrs 25028 Hrs
SAM9X70-V/4PB SAM9X72-V/4PB SAM9X75-V/4PB	Extended Industrial	105°C	125°C	800 MHz 600 MHz	1.15 V 1.05 V	2347 Hrs 6379 Hrs
SAM9X70-V/6GW SAM9X72-V/6GW SAM9X75-V/6GW	Extended Industrial	105°C	125°C	800 MHz 600 MHz	1.15 V 1.05 V	2347 Hrs 6379 Hrs
SAM9X75-V/4PBVAO	Automotive	105°C	125°C	800 MHz 600 MHz	1.15 V 1.05 V	2347 Hrs 6379 Hrs

Note:

Indicative ambient temperature. Depends mainly on package variant, board construction and dissipated power.

2.1 Power-on Hours (POHQ(TJ, VDD))