40.3.1 Supply Voltage

Table 40-1. 
Standard Operating Conditions (unless otherwise stated)
Param. No. Sym. Characteristic Min. Typ.† Max. Units Conditions
Supply Voltage
D002 VDD 1.8 — 5.5 V FOSC ≤ 16 MHz
2.5 — 5.5 V FOSC > 16 MHz
RAM Data Retention(1)
D003 VDR 1.7 — — V Device in Sleep mode
Power-on Reset Release Voltage(2)
D004 VPOR — 1.6 — V BOR disabled(3)
Power-on Reset Rearm Voltage(2)
D005 VPORR — 1 — V BOR disabled(3)
VDD Rise Rate to ensure internal Power-on Reset signal(2)
D006 SVDD 0.05 — — V/ms BOR disabled(3)

† Data in “Typ.” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not tested.

Note:
  1. This is the limit to which VDD can be lowered in Sleep mode without losing RAM data.
  2. Refer to the “POR and POR Rearm with Slow Rising VDD” figure below.
  3. Refer to the “Reset, WDT, Power-up Timer, and Brown-Out Reset Specifications” section for BOR trip point information.
Figure 40-2. POR and POR Rearm with Slow Rising VDD
Note:
  1. When NPOR is low, the device is held in Reset.