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ST72321B Datasheet(PDF) 149 Page - STMicroelectronics

Part # ST72321B
Description  64/44-pin 8-bit MCU with 32 to 60K Flash/ROM, ADC, five timers, SPI, SCI, I2C interface
PDF  187 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72321B Datasheet(HTML) 149 Page - STMicroelectronics

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CLOCK CHARACTERISTICS (Cont’d)
12.5.4 RC Oscillators
Figure 76. Typical fOSC(RCINT) vs TA
Note: To reduce disturbance to the RC oscillator,
it is recommended to place decoupling capacitors
between VDD and VSS as shown in Figure 96
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fOSC (RCINT)
Internal RC oscillator frequency
See Figure 76
TA=25°C, VDD=5V
23.5
5.6
MHz
3
3.2
3.4
3.6
3.8
4
-45
0
25
70
130
TA(°C)
Vdd = 5V
Vdd = 5.5V



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