
Electrical characteristics ST72321xx-Auto
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19.3 Operating conditions
19.3.1 General operating conditions
Note: Some temperature ranges are only available with a specific package and memory size.
Refer to Section 21: Device configuration and ordering information on page 223.
Figure 73. f
CPU
max versus V
DD
Table 107. General operating conditions
Symbol Parameter Conditions Min Max Unit
f
CPU
Internal clock frequency 0 8 MHz
V
DD
Standard voltage range (except Flash
Write/Erase)
3.8 5.5
V
Operating voltage for Flash Write/Erase V
PP
= 11.4 to 12.6V 4.5 5.5
T
A
Ambient temperature range
A suffix version
-40
85
°CB suffix version 105
C suffix version 125
f
CPU
[MHz]
SUPPLY VOLTAGE [V]
8
4
2
1
0
3.5 4.0 4.5 5.5
FUNCTIONALITY
FUNCTIONALITY
GUARANTEED
IN THIS AREA
NOT GUARANTEED
IN THIS AREA
3.8
6
(UNLESS
OTHERWISE
SPECIFIED
IN THE TABLES
OF PARAMETRIC
DATA)
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