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ST7LITEUSX Datasheet(PDF) 72 Page - STMicroelectronics

Part # ST7LITEUSX
Description  8-bit MCU with single voltage Flash memory, ADC, timers
PDF  108 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7LITEUSX Datasheet(HTML) 72 Page - STMicroelectronics

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12.3.5.2 Internal RC oscillator calibrated at 3.3V
The ST7 internal clock can be supplied by an internal RC oscillator (selectable by option byte).
Notes:
1. See “INTERNAL RC OSCILLATOR ADJUSTMENT” on page 17
2. Guaranteed by Design.
Figure 40. Internal RC oscillator frequency vs. temperature (RCCR=RCCR0) at VDD = 5.0V
Figure 41. Internal RC oscillator frequency vs. temperature (RCCR=RCCR1) at VDD = 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 = RCCR11 ),TA=25°C,VDD=3.3V
8
ACCRC
Accuracy of Internal RC oscillator
with
RCCR=RCCR11)
TA=25°C, VDD=3.3V
-2
+2
%
TA=25°C, VDD=3.0 to 3.6V
-4
+4
%
TA=0 to +85°C, VDD=3.3V
-4
+3.5
%
TA=0 to +85°C, VDD=3.0 to 3.6V
-6
+5
%
TA=0 to +125°C, VDD=3.3V
-5.5
+4.5
%
TA=0 to +125°C, VDD=3.0 to 3.6V
-7
+5.5
%
TA=-40°C to 0°C, VDD=3.0 to 3.6V
-6
+6
%
IDD(RC)
RC oscillator current consumption TA=25°C, VDD=3.3V
900 2)
µA
tsu(RC)
RC oscillator setup time
TA=25°C, VDD=3.3V
4 2)
µs
7.75
8
8.25
-60
-40
-20
0
20
40
60
80
100
120
140
TA (°C)
4.5V
5.0V
5.5V
7.5
7.75
8
8.25
-60
-40
-20
0
20
40
60
80
100
120
140
TA (°C)
3.0V
3.3V
3.6V
1



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