ST72521R9-Auto STMicroelectronics, ST72521R9-Auto Datasheet - Page 222

• Manufacturer Part Number: ST72521R9-Auto
• Description: 8-bit MCU for automotive
• Manufacturer: STMicroelectronics

Specifications of ST72521R9-Auto

• Hdflash Endurance: 100 cycles, data retention 20 years
• Clock Sources: crystal/ceramic resonator oscillators, internal RC oscillator and bypass for external clock
• 4 Power Saving Modes: Halt, Active Halt, Wait and Slow

Electrical characteristics
20.3.2
Table 128. Operating conditions with low voltage detector (LVD)
1. Data based on characterization results, tested in production for ROM devices only
2. Data based on characterization results, not tested in production
3. When Vt
4. If the medium or low thresholds are selected, the detection may occur outside the specified operating voltage range. Below
20.3.3
Table 129. Auxiliary voltage detector (AVD) thresholds
1. Data based on characterization results, tested in production for ROM devices only
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V
V
Symbol
V
V
V
Symbol
V
t
Vt
IT+(LVD)
hys(LVD)
g(VDD)
IT-(LVD)
IT+(AVD)
hys(AVD)
IT-(AVD)
V
3.8V, device operation is not guaranteed.
V
POR
IT+(LVD)
IT-
Reset release threshold
(V
Reset generation threshold
(V
LVD voltage threshold
hysteresis
V
V
detected) by LVD
POR
threshold.
10 AVDF flag toggle threshold
(V
01 AVDF flag toggle threshold
(V
AVD voltage threshold hysteresis
Voltage drop between AVD flag set
and LVD reset activated
DD
DD
DD
DD
Operating conditions with low voltage detector (LVD)
Subject to general operating conditions for V
Auxiliary voltage detector (AVD) thresholds
Subject to general operating conditions for V
DD
DD
is faster than 100µs/V, the Reset signal is released after a delay of maximum 42µs after V
rise time
glitches filtered (not
rise)
fall)
rise)
fall)
Parameter
(2)(3)
Parameter
(4)
VD level = High in option byte
VD level = Med. in option byte
VD level = Low in option byte
VD level = High in option byte
VD level = Med. in option byte
VD level = Low in option byte
V
LVD enabled
IT+(LVD)
Doc ID 17660 Rev 1
V
VD level = High in option byte
VD level = Med. in option byte
VD level = Low in option byte
VD level = High in option byte
VD level = Med. in option byte
VD level = Low in option byte
V
IT+(AVD)
IT-(AVD)
-V
Conditions
IT-(LVD)
-V
-V
Conditions
IT-(LVD)
IT-(AVD)
DD
DD
, f
, f
CPU
CPU
, and T
, and T
(2)
(2)
(2)
(2)
3.55
2.95
3.35
A
A
6µs/V
4.0
2.8
.
Min
.
3.8
3.95
3.75
4.4
3.4
4.2
3.2
Min
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
3.75
3.15
3.55
Typ
200
4.2
4.0
3.0
4.15
Typ
200
450
4.6
3.6
4.4
4.0
3.4
DD
ST72521xx-Auto
crosses the
100ms/V
4.65
4.4
4.9
3.8
4.2
3.6
3.35
4.25
3.75
3.15
Max
4.0
Max
4.5
40
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
Unit
mV
Unit
mV
V
ns
V
-