ST72361XX Datasheet, PDF (230/279 Pages) STMicroelectronics – Clock, reset and supply management

Electrical characteristics
ST72361xx-Auto
19.3
19.3.1
Operating conditions
General operating conditions
Symbol
Parameter
f_CPU Internal clock frequency
Extended operating voltage
V_{DD Standard operating voltage}
Operating voltage for flash write/
erase
T_A Ambient temperature range
Conditions
No Flash write/ erase.
Analog parameters not
guaranteed.
V_PP = 11.4 to 12.6V
A Suffix version
C Suffix version
Min Max Unit
0
8 MHz
3.8
4.5
V
4.5
5.5
85
-40
°C
125
Figure 97. f_CPU maximum vs V_DD
f_CPU [MHz]
FUNCTIONALITY GUARANTEED IN THIS AREA
UNLESS OTHERWISE SPECIFIED IN THE TABLES OF
PARAMETRIC DATA
8
FUNCTIONALITY
NOT GUARANTEED ₆
IN THIS AREA
FUNCTIONALITY
GUARANTEED
IN THIS AREA
4
2
1
0
3.5
3.84.0
4.5
5.0
5.5
SUPPLY VOLTAGE [V]
19.3.2
Operating conditions with low voltage detector (LVD)
Subject to general operating conditions for T_A.
Symbol
Parameter
Conditions
Min Typ Max Unit
V_IT+(LVD) Reset release threshold (V_DD rise)
V_IT-(LVD)
Reset generation threshold (V_DD
fall)
V_hys(LVD) LVD voltage threshold hysteresis⁽¹⁾ V_IT+(LVD)-V_IT-(LVD)
Vt_POR V_DD rise time rate⁽¹⁾
4.0⁽¹⁾ 4.2 4.5
V
3.8 4.0 4.25⁽¹⁾
150 200 250 mV
6
µs/V
100 ms/V
t_g(VDD)
V_DD glitches filtered (not detected)
by LVD⁽¹⁾
Measured at V_IT-(LVD)
40 ns
1. Data based on characterization results, not tested in production.
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Doc ID 12468 Rev 3