參數(shù)資料
型號: ST7FLIT19BF1U6TR
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, QCC20
封裝: LEAD FREE, QFN-20
文件頁數(shù): 15/153頁
文件大?。?/td> 2862K
代理商: ST7FLIT19BF1U6TR
ST7LITE1xB
111/153
13.3.3 Operating Conditions with Low Voltage Detector (LVD)
13.3.3.1 Operating Conditions with LVD at TA = -40 to 125°C, unless otherwise specified
Notes:
1. The VDD rise time rate condition is needed to insure a correct device power-on and LVD reset. Not tested in production.
2. Use of LVD with capacitive power supply: with this type of power supply, if power cuts occur in the application, it is rec-
ommended to pull VDD down to 0V to ensure optimum restart conditions. Refer to circuit example in Figure 105 on
page 133 and note 4.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VIT+(LVD)
Reset release threshold
(VDD rise)
High Threshold
Med. Threshold
Low Threshold
3.80
3.20
2.65
4.20
3.55
2.85
4.60
3.90
3.10
V
VIT-(LVD)
Reset generation threshold
(VDD fall)
High Threshold
Med. Threshold
Low Threshold
3.70
3.10
2.50
4.00
3.35
2.70
4.35
3.70
2.90
Vhys
LVD voltage threshold hysteresis
VIT+(LVD)-VIT-(LVD)
200
mV
VtPOR
VDD rise time rate
1)2)
100
ms/V
tg(VDD)
Filtered glitch delay on VDD
1)
Not detected by the LVD
150
ns
IDD(LVD)
LVD/AVD current consumption
200
A
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