AT32UC3C1512C Automotive Atmel Corporation, AT32UC3C1512C Automotive Datasheet - Page 47

• Manufacturer Part Number: AT32UC3C1512C Automotive
• Manufacturer: Atmel Corporation

6.1.4
6.1.4.1
6.1.4.2
9166C–AVR-08/11
Power-up Sequence
Maximum Rise Rate
Minimum Rise Rate
Figure 6-2.
To avoid risk of latch-up, the rise rate of the power supplies must not exceed the values
described in
Recommended order for power supplies is also described in this table.
The integrated Power-Reset circuitry monitoring the powering supply requires a minimum rise
rate for the VDDIN_5 power supply.
See
If the application can not ensure that the minimum rise rate condition for the VDDIN power sup-
ply is met, the following configuration can be used:
• A logic “0” value is applied during power-up on pin RESET_N until:
C
IN2
Table 40-2 on page 1247
– VDDIN_5 rises above 4.5V in 5V single supply mode.
– VDDIN_33 rises above 3V in 3.3V single supply mode.
C
C
OUT2
GNDCORE
VDDCORE
IN1
VDDIN_33
Table 40-2 on page
3 Single Power Supply Mode
3.6V
3.0-
+
C
-
OUT1
VDDIO1
VDDIO2
VDDIO3
for the minimum rise rate value.
BOD33
BOD18
1247.
BOD50
POR
3.3V
1.8V
Reg
Reg
VDDIN_5
VDDANA
Analog: ADC, AC, DAC, ...
SCIF, BOD,
Peripherals
Memories
RCSYS
CPU
PLL
GNDANA
AT32UC3C
GNDPLL
GNDIO1
GNDIO2
GNDIO3
47