參數(shù)資料
型號(hào): 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): 16/153頁
文件大?。?/td> 2862K
代理商: ST7FLIT19BF1U6TR
ST7LITE1xB
112/153
13.3.4 Auxiliary Voltage Detector (AVD) Thresholds
TA = -40 to 125°C, unless otherwise specified
13.3.5 Internal RC Oscillator and PLL
The ST7 internal clock can be supplied by an internal RC oscillator and PLL (selectable by option byte).
Symbol
Parameter
Conditions
Typ
Unit
VIT+(AVD)
1=>0 AVDF flag toggle threshold
(VDD rise)
High Threshold
Med. Threshold
Low Threshold
4.50
4.00
3.35
V
VIT-(AVD)
0=>1 AVDF flag toggle threshold
(VDD fall)
High Threshold
Med. Threshold
Low Threshold
4.40
3.85
3.20
Vhys
AVD voltage threshold hysteresis
VIT+(AVD)-VIT-(AVD)
170
mV
V
IT-
Voltage drop between AVD flag set and
LVD reset activation
VDD fall
0.15
V
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VDD(RC)
Internal RC Oscillator operating voltage
Refer to operating range
of VDD with TA, section
2.7
5.5
V
VDD(x4PLL) x4 PLL operating voltage
2.7
3.7
VDD(x8PLL) x8 PLL operating voltage
3.3
5.5
tSTARTUP
PLL Startup time
60
PLL
input
clock
(fPLL)
cycles
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