參數(shù)資料
型號： ST72124J2T
廠商： 意法半導(dǎo)體
英文描述： 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES
中文描述： 8位單電壓閃存，ADC和16位定時(shí)器，SPI和脊髓損傷界面微控制器
文件頁數(shù)： 111/153頁
文件大小： 1533K
代理商： ST72124J2T
ST72334J/N, ST72314J/N, ST72124J
111/153
OPERATING CONDITIONS
(Cont’d)
16.3.2 Operating Conditions with Low Voltage Detector (LVD)
Subject to general operating conditions for V
DD
, f
OSC
, and T
A
.
Figure 57. High LVD Threshold Versus V
DD
and f
OSC
for FLASH devices
3)
Figure 58. Medium LVD Threshold Versus V
DD
and f
OSC
for FLASH devices
3)
Figure 59. Low LVD Threshold Versus V
DD
and f
OSC
for FLASH devices
2)4)
Notes:
1.
LVD typical data are based on T
A
=25°C. They are given only as design guidelines and are not tested.
2. Data based on characterization results, not tested in production.
3. The V
DD
rise time rate condition is needed to insure a correct device power-on and LVD reset. Not tested in production.
4.If the low LVD threshold is selected, when V
falls below 3.2V, (V
minimum operating voltage), the device is guar-
anteed to continue functioning until it goes into reset state. The specified V
min. value is necessary in the device power
on phase, but during a power down phase or voltage drop the device will function below this min. level.
Symbol
Parameter
Conditions
Min
4.10
2)
3.75
2)
3.25
2)
3.85
2)
3.50
2)
3.00
200
0.2
Typ
1)
4.30
3.90
3.35
4.05
3.65
3.10
250
Max
4.50
4.05
3.55
4.30
3.95
3.35
300
50
40
Unit
V
IT+
Reset release threshold (V
DD
rise)
High Threshold
Med. Threshold
Low Threshold
High Threshold
Med. Threshold
Low Threshold
4)
V
IT+
-V
IT-
V
V
IT-
Reset generation threshold (V
DD
fall)
V
hys
Vt
POR
t
g(VDD)
LVD voltage threshold hysteresis
V
DD
rise time rate
3)
Filtered glitch delay on V
DD 2)
mV
V/ms
ns
Not detected by the LVD
f
OSC
[MHz]
SUPPLY VOLTAGE [V]
16
12
8
0
2.5
3
3.5
4
4.5
5
5.5
FUNCTIONAL AREA
DEVICE UNDER
FUNCTIONALITY AND RESET NOT GUARANTEED IN THIS AREA
FOR TEMPERATURES HIGHER THAN 85°C
RESET
IN THIS AREA
FUNCTIONALITY
NOT GUARANTEED
IN THIS AREA
V
IT-
≥
3.85
f
OSC
[MHz]
SUPPLY VOLTAGE [V]
16
12
8
0
2.5
3
V
IT-
≥
3.5V
4
4.5
5
5.5
FUNCTIONAL AREA
DEVICE UNDER
FUNCTIONALITY AND RESET NOT GUARANTEED IN THIS AREA
FOR TEMPERATURES HIGHER THAN 85°C
RESET
IN THIS AREA
FUNCTIONALITY
NOT GUARANTEED
IN THIS AREA
f
OSC
[MHz]
SUPPLY VOLTAGE [V]
16
12
8
0
2.5
V
IT-
≥
3V
3.5
4
4.5
5
5.5
FUNCTIONAL AREA
DEVICE UNDER
FUNCTIONALITY NOT GUARANTEED IN THIS AREA
FOR TEMPERATURES HIGHER THAN 85°C
RESET
IN THIS AREA
FUNCTIONALITY
NOT GUARANTEED
IN THIS AREA
3.2
SEE NOTE 4
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