Auxiliary Voltage Detector (Avd) Thresholds; Supply Current Characteristics; Figure 98. Lvd Startup Behavior - STMicroelectronics ST72361 Auto Series Manual

ST72361xx-Auto
19.3.3

Auxiliary voltage detector (AVD) thresholds

Subject to general operating conditions for T
Symbol
V
IT+(AVD)
V
IT-(AVD)
V
hys(AVD)
V
IT-
1. Data based on characterization results, not tested in production.

Figure 98. LVD startup behavior

Note: When the LVD is enabled, the MCU reaches its authorized operating voltage from a reset
state. However, in some devices, the reset signal may be undefined until V
approximately 2V. As a consequence, the I/Os may toggle when V
Because Flash write access is impossible below this voltage, the Flash memory contents
will not be corrupted.
19.4

Supply current characteristics

The following current consumption specified for the ST7 functional operating modes over
temperature range does not take into account the clock source current consumption. To get
the total device consumption, the two current values must be added (except for HALT mode
for which the clock is stopped).
Parameter
10 AVDF flag toggle
threshold (V rise)
DD
01 AVDF flag toggle
threshold (V fall)
DD
AVD voltage threshold
hysteresis
Voltage drop between AVD
flag set and LVD reset
activated
5V
V
IT+
2V
Reset state
not defined
in this area
Doc ID 12468 Rev 3
.
A
Conditions
V -V
IT+(AVD) IT-(AVD)
V -V
IT-(AVD) IT-(LVD)
Electrical characteristics
Min Typ Max
(1)
4.4 4.6 4.9
(1)
4.2 4.4 4.65
250
450
LVD RESET
t
is
DD
is below this voltage.
DD
231/279
Unit
V
mV