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ST72334J2TA/XXX Scheda tecnica(PDF) 119 Page - STMicroelectronics

Il numero della parte ST72334J2TA/XXX
Spiegazioni elettronici  8-bit MCU for automotive with single voltage Flash/ROM memory, ADC, 16-bit timers, SPI, SCI interfaces
PDF  150 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72334J2TA/XXX Scheda tecnica(HTML) 119 Page - STMicroelectronics

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CLOCK AND TIMING CHARACTERISTICS (Cont’d)
15.5.3.2 Typical Ceramic Resonators
Note:
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).
Figure 68. Application with Ceramic Resonator
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. The oscillator selection can be optimized in terms of supply current using a high quality resonator with small RS value.
Refer to Table 23 and Table 24 and to the ceramic resonator manufacturer’s documentation for more details.
Symbol
Parameter
Conditions
Typ
Unit
tSU(osc)
Ceramic resonator start-up time
LP
2MHz
4.2
ms
MP
4MHz
2.1
MS
8MHz
1.1
HS
16MHz
0.7
OSC2
OSC1
fOSC
CL1
CL2
i2
RF
ST72XXX
RESONATOR
WHEN RESONATOR WITH
INTEGRATED CAPACITORS
RD
RF(EXT)



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