Specifications

Table Of Contents
ST72361xx-Auto Electrical characteristics
Doc ID 12468 Rev 3 231/279
19.3.3 Auxiliary voltage detector (AVD) thresholds
Subject to general operating conditions for T
A
.
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
DD
is
approximately 2V. As a consequence, the I/Os may toggle when V
DD
is below this voltage.
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).
Symbol Parameter Conditions Min Typ Max Unit
V
IT+(AVD)
10 AVDF flag toggle
threshold (V
DD
rise)
4.4
(1)
1. Data based on characterization results, not tested in production.
4.6 4.9
V
V
IT-(AVD)
01 AVDF flag toggle
threshold (V
DD
fall)
4.2 4.4 4.65
(1)
V
hys(AVD)
AVD voltage threshold
hysteresis
V
IT+(AVD)
-V
IT-(AVD)
250
mV
V
IT-
Voltage drop between AVD
flag set and LVD reset
activated
V
IT-(AVD)
-V
IT-(LVD)
450
5V
2V
V
IT+
LVD RESET
V
D
D
t
Reset state
in this area
not defined