36.4 Supply Voltage

Table 36-4. Supply Voltage
Symbol Min. Typ. ✝ Max. Unit Conditions
Supply Voltage(1)
VDD 1.8(2) — 5.5 V
RAM Data Retention(3)
VDR 1.7 — — V Device in Power-Down mode
Power-on Reset Release Voltage(5)
VPOR — 1.6 — V BOD disabled(4)
tPOR — — — μs BOD disabled(4)
Power-on Reset Re-Arm Voltage(5)
VPORR — 1.1 — V BOD disabled(4)
tPORR — — — μs BOD disabled(4)
VDD Slope(6)
SVDD — — 0.2 V/µs BOD disabled(4)

✝ Unless otherwise specified, data in the “Typ.” column is at TA = 25°C and VDD = 3.0V . These parameters are not tested and are for design guidance only.

Note:
  1. The Brown-out Detector (BOD) configured with BODLEVEL0 is forced ON during Chip Erase. The erase attempt will fail if the supply voltage VDD is below VBOD for BODLEVEL0.
  2. Operation is ensured down to 1.8V or BOD triggering level VBOD when BOD is active.
  3. This is the limit to which VDD can be lowered in sleep mode without losing RAM data.
  4. Refer to 36.11 RSTCTRL and BOD for BOD trip point information.
  5. Refer to Figure 36-1.
  6. For design guidance only and not tested in production.
Figure 36-1. POR and POR Re-Arm with Slow Rising VDD
Note: When POR is low, the device is held in Reset.