Product Specs

Table Of Contents
18 POWER Power supply
Page
99
Bit number
Id
Reset 0x0000FFFF
31 30
0 0
29
0
28
0
27
0
26
0
25
0
24
0
23 22 21 20
0 0 0 0
19
0
18
0
17
D
0
16
C
0
15
1
14
1
13
1
12
1
11
1
10
1
9
1
8
1
7
1
6
1
5
1
4
1
3
1
2
1
1
B
1
0
A
1
Id RW Field
Value Id
Value
Description
C W S0RETENTION
Keep retention on RAM section S0 when RAM section is
switched off
Off
1
Off
D W S1RETENTION
Off
1
Keep retention on RAM section S1 when RAM section is
switched off
Off
18.10 Electrical specification
18.10.1 Current consumption, sleep
Symbol
Description
Min.
Typ.
Max.
Units
I
OFF
System OFF current, no RAM retention
0.3
µA
I
ON
System ON base current, no RAM retention
1.2
µA
I
RAM
Additional RAM retention current per 4 KB RAM section
20
nA
18.10.2 Device startup times
Symbol
Description
Min.
Typ.
Max.
Units
t
POR
Time in Power on Reset after VDD reaches 1.7 V for all supply
voltages and temperatures. Dependent on supply rise time.
10
t
POR,10us
VDD rise time 10us
1
ms
t
POR,10ms
VDD rise time 10ms
9
ms
t
POR,60ms
VDD rise time 60ms
23
ms
t
PINR
If a GPIO pin is configured as reset, the maximum time taken
to pull up the pin and release reset after power on reset.
Dependent on the pin capacitive load (C)
11
: t=5RC, R = 13kOhm
t
PINR,500nF
C = 500nF
32.5
ms
t
PINR,10uF
C = 10uF
650
ms
t
R2ON
Time from reset to ON (CPU execute)
t
R2ON,NOTCONF
If reset pin not configured
tPOR
ms
t
R2ON,CONF
If reset pin configured
tPOR +
ms
tPINR
t
OFF2ON
Time from OFF to CPU execute
16.5
µs
t
IDLE2CPU
Time from IDLE to CPU execute
3.0
µs
t
EVTSET,CL1
Time from HW event to PPI event in Constant Latency System
0.0625
µs
ON mode
t
EVTSET,CL0
Time from HW event to PPI event in Low Power System ON
0.0625
µs
mode
18.10.3 Power fail comparator
Symbol
Description
Min.
Typ.
Max.
Units
I
POF
Current consumption when enabled
12
<4
µA
V
POF
Nominal power level warning thresholds (falling supply voltage).
Levels are configurable between Min. and Max. in 100mV
1.7
2.8
V
increments.
V
POFTOL
Threshold voltage tolerance
±1
±5
%
10
A step increase in supply voltage of 300 mV or more, with rise time of 300 ms or less, within the valid supply
range, may result in a system reset.
11
To decrease maximum time a device could hold in reset, a strong external pullup resistor can be used.
12
To save power, POF will not operate nor consume in System OFF, or while HFCLK is not running, even if left
enabled by software