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ST72321 Folha de dados(PDF) 148 Page - STMicroelectronics

Nome de Peças ST72321
Descrição Electrónicos  8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C INTERFACE
PDF  185 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72321 Folha de dados(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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