Supply Voltage

Table 1. Supply Voltage
Symbol	Min.	Typ.	Max.	Units	Conditions
Supply Voltage⁽¹⁾⁽²⁾
V_DD	1.8	—	5.5	V
V_DDIO2	1.62	—	5.5	V
S_VDD	—	—	250	V/ms	1.8V < V_DD < 5.5V
RAM Data Retention⁽³⁾
V_DR	1.7	—	—	V	Device in Power-Down mode
Power-on Reset Release⁽⁴⁾
V_POR	—	1.6	—	V	BOD disabled⁽²⁾
t_POR	—	1	—	μs	BOD disabled⁽²⁾
Power-on Reset Rearm⁽⁴⁾
V_PORR	—	1.25	—	V	BOD disabled⁽²⁾
t_PORR	—	2.7	—	μs	BOD disabled⁽²⁾
V_DD Slope to Ensure Internal Power-on Reset Signal⁽⁴⁾
S_VDD	0.05	—	—	V/ms	BOD disabled⁽²⁾
Notes: 1.During Chip Erase, the Brown-out Detector (BOD) configured with BODLEVEL0 is forced ON. If the supply voltage V_DD is below V_BOD for BODLEVEL0, the erase attempt will fail. 2.Refer to section Reset Controller Specifications for BOD trip point information. 3.This is the limit to which V_DD can be lowered in sleep mode without losing RAM data. 4.Refer to Figure 1.

Figure 1. POR and PORR with Slow Rising V_DD

Note: