55.3.2 Brown-Out Detectors (BOD) Characteristics (105°C)

Table 55-4. BOD33 Characteristics on VDD and VBAT Monitoring in Normal Mode (During Power-up Phase and Active Mode)

DC CHARACTERISTICS			Standard Operating Conditions: VDDIO=VDDANA 1.71 V to 3.63V (unless otherwise stated) Operating temperature -40°C ≤ TA ≤ +105°C
Param. No.	Symbol	Characteristics	Min.(1)	Typical	Max.(2)	Units	Conditions
REG1	VBOD33	VDDANA and VBAT BOD levels	1.453	—	1.565	V	ActiveLEVEL[7:0] = 0x00 (Min Value) , HYST[3:0] =0x02
			1.598	—	1.719	V	ActiveLEVEL[7:0] = 0x19 (Recommended Value) , HYST[3:0] =0x02
			1.616	—	1.737	V	ActiveLEVEL[7:0] = 0x1C (Fuse Value) , HYST[3:0] =0x02
			2.925	—	3.316	V	ActiveLEVEL[7:0] = 0xFF(3) (Max Value) , HYST[3:0] = 0x00
REG3	VBOD33LEVEL_STEP	VBOD33 step size, LEVEL[7:0]	—	6	—	mV
REG4	VBOD33HYST_STEP	VBOD33 Hysteresis step size, HYST[3:0]	—	6	—	mV
REG5	TSTART(4)	Startup time (Time from enable to RDY)	—	27	—	µs

Note:

1. BOD- = VBOD(min) = (1.5 + (LEVEL[7:0] * VBOD33_{LEVEL_STEP)})
2. BOD+ = VBOD(max) = (VBOD(min) + (HYST[3:0] * VBOD33_{HYST_STEP}))
3. If a hysteresis value is programmed, the following equation must be respected to avoid any overflow on VBOD33(max): LEVEL[7:0] value < 255 - HYST[3:0] value.
4. These values are based on design simulation, and not covered by production test limits or characterization.

Table 55-5. BOD33 Characteristics on VDD and VBAT Monitoring in Low-Power Mode (During Standby/Backup/Hibernate Modes)

DC CHARACTERISTICS			Standard Operating Conditions: VDDIO=VDDANA 1.71 V to 3.63V (unless otherwise stated) Operating temperature -40°C ≤ TA ≤ +105°C
Param. No.	Symbol	Characteristics	Min.(1)	Typical	Max.(2)	Units	Conditions
REG7	VBOD33	VDDANA and VBAT BOD levels	1.39	—	1.63	V	ActiveLEVEL[7:0] = 0x00 (Min Value) , HYST[3:0] =0x02
			1.52	—	1.8	V	ActiveLEVEL[7:0] = 0x19 (Recommended Value) , HYST[3:0] =0x02
			1.54	—	1.82	V	ActiveLEVEL[7:0] = 0x1C (Fuse Value) , HYST[3:0] =0x02
			2.8	—	3.28	V	ActiveLEVEL[7:0] = 0xFF(3) (Max Value) , HYST[3:0] = 0x00
REG9	VBOD33LEVEL_STEP	VBOD33 step size, LEVEL[7:0]	—	6	—	mV
REG10	VBOD33HYST_STEP	VBOD33 Hysteresis step size, HYST[3:0]	—	6	—	mV
REG11	TSTART(4)	Startup time (Time from enable to RDY)	—	27	—	µs

Note:

1. BOD- = VBOD(min) = (1.5 + (LEVEL[7:0] * VBOD33_{LEVEL_STEP}))
2. BOD+ = VBOD(max) = (VBOD(min) + (HYST[3:0] * VBOD33_{HYST_STEP}))
3. If a hysteresis value is programmed, the following equation must be respected to avoid any overflow on VBOD33(max): LEVEL[7:0] value < 255 - HYST[3:0] value.
4. These are based on design simulation, and not covered by production test limits or characterization.

Table 55-6. BOD33 Power Consumption

Symbol	CPU Mode	Conditions	TA	Typ.	Max	Units
IDD	Active / Idle	VDD = 1.8V	Max. 105°C Typ 25°C	8.52	13.26	µA
		VDD = 3.3V		10.10	15.70
	Standby with BOD continuous normal mode	VDD = 1.8V		4.71	6.74
		VDD = 3.3V		6.01	8.59
	Standby with BOD continuous low power mode or Hibernate mode	VDD = 1.8V		0.15	0.25
		VDD = 3.3V		0.21	0.33