53.6 NVM Block (Flash, Data Flash, NVM Configuration Rows) Electrical Specifications

Table 53-9. Flash NVM AC Electrical Specifications
AC CHARACTERISTICS				Standard Operating Conditions: VDDREG = VDDIO = AVDD 1.71V to 3.6V (unless otherwise stated) Operating Temperature: -40°C ≤ TA ≤ +125°C for Extended Temp
Param. No.	Symbol	Characteristics		Min.	Typ.	Max.	Units	Conditions
NVM_5	FREAD⁽¹⁾	Flash Read⁽¹⁾	0 Wait States	—	—	(*)	MHz	VDDIOx = 3.3V, FCR.CTRLA.AUTOWS = 0
			1 Wait States	—	—	(*)
			2 Wait States	—	—	(*)
			3 Wait States	—	—	(*)
			4 Wait States	—	—	(*)
			5 Wait States	—	—	(*)
			0 Wait States	—	—	(*)	MHz	VDDIOx = 1.8V or VDDIO(min) whichever is greater, FCR.CTRLA.AUTOWS = 0
			1 Wait States	—	—	(*)
			2 Wait States	—	—	(*)
			3 Wait States	—	—	(*)
			4 Wait States	—	—	(*)
			5 Wait States	—	—	(*)
Note: Maximum Flash operating frequencies are given in the table above, but are limited by the Embedded Flash access time when the processor is fetching code out of it. Theses tables provide the device maximum operating frequency defined by the FWS field of the FCW CTRLA register when automatic wait states (AUTOWS) is disabled. This field defines the number of Wait states required to access the Embedded Flash Memory. Cell Endurance is reached with Flash Pre-Programming option disabled. Enabling such option will improve the cell endurance but slow-down the programming time.