參數(shù)資料
型號： ST7PLU09MAE
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO8
封裝： 0.150 INCH, ROHS COMPLIANT, PLASTIC, SOP-8
文件頁數(shù)： 119/124頁
文件大?。?/td> 1995K
代理商： ST7PLU09MAE
Electrical characteristics
ST7LUS5, ST7LU05, ST7LU09
12.3.1
Internal RC oscillator
The ST7 internal clock can be supplied by an internal RC oscillator (selectable by option
byte).
Note:
To improve clock stability and frequency accuracy, it is recommended to place a decoupling
capacitor, typically 100nF, between the VDD and VSS pins as close as possible to the ST7
device.
Table 66.
Internal RC oscillator calibrated at 5.0V
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fRC
Internal RC oscillator
frequency
RCCR = FF (reset value), TA =25°C, VDD = 5V
4.5
MHz
RCCR = RCCR0(1), TA = 25°C, VDD =5V
8
ACCRC
RC resolution
VDD = 5V
-2
+2
%
Accuracy of internal RC
oscillator with
RCCR = RCCR0(1)
TA = 0°C to +125°C, VDD = 5V
-5
+5
TA = -40°C to +125°C, VDD =4.5 to 5.5V
TBD
IDD(RC)
RC oscillator current
consumption
TA = 25°C, VDD = 5V
900(2)
A
tsu(RC) RC oscillator setup time
TA = 25°C, VDD = 5V
s
1.
2.
Guaranteed by Design
Table 67.
Internal RC oscillator calibrated at 3.3V
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fRC
Internal RC oscillator
frequency
RCCR = FF (reset value), TA = 25°C, VDD = 3.3V
4.4
MHz
RCCR = RCCR1(1), TA = 25°C, VDD =3.3V
8
ACCRC
RC resolution
VDD = 3.3V
-2
+2
%
Accuracy of internal RC
oscillator with
RCCR = RCCR1(1)
TA = 0°C to +125°C, VDD = 3.3V
-7
+7
TA = -40°C to +125°C, VDD = 3.0 to 3.6V
TBD
IDD(RC)
RC oscillator current
consumption
TA = 25°C, VDD = 3.3V
900(2)
A
tsu(RC) RC oscillator setup time
TA = 25°C, VDD = 3.3V
s
1.
2.
Guaranteed by Design
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