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ST72321 Scheda tecnica(PDF) 148 Page - STMicroelectronics

Il numero della parte ST72321
Spiegazioni elettronici  8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C INTERFACE
PDF  185 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72321 Scheda tecnica(HTML) 148 Page - STMicroelectronics

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CLOCK AND TIMING CHARACTERISTICS (Cont’d)
Notes:
1. Resonator characteristics given by the ceramic resonator manufacturer.
2. tSU(OSC) is the typical oscillator start-up time measured between VDD=2.8V and the fetch of the first instruction (with a
quick VDD ramp-up from 0 to 5V (<50µs).
3. Resonators all have different characteristics. Contact the manufacturer to obtain the appropriate values of external
components and to verify oscillator performance.
4. 3rd overtone resonators require specific validation by the resonator manufacturer.
Oscil.
Typical Ceramic Resonators (information for guidance only)
CL1
[pF]
CL2
[pF]
tSU(osc)
[ms] 2)
Reference3)
Freq.
Characteristic 1)
LP
CSA2.00MG
2MHz
∆f
OSC=[±0.5%tolerance,±0.3%
∆Ta,±0.3%aging,±x.x%correl]22
22
4
MP
CSA4.00MG
4MHz
∆f
OSC=[±0.5%tolerance,±0.3%
∆Ta,±0.3%aging,±x.x%correl]22
22
2
MS
CSA8.00MTZ
8MHz
∆f
OSC=[±0.5%tolerance,±0.5%
∆Ta,±0.3%aging,±x.x%correl]33
33
1
HS
CSA16.00MXZ0404)
16MHz
∆f
OSC=[±0.5%tolerance,±0.3%
∆Ta,±0.3%aging,±x.x%correl] 33
33
0.7



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