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ST7263BEx Scheda tecnica(PDF) 144 Page - STMicroelectronics

Il numero della parte ST7263BEx
Spiegazioni elettronici  Low speed USB 8-bit MCU family with up to 32 KB Flash/ROM, DFU capability, 8-bit ADC, WDG, timer, SCI and I²C
PDF  186 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7263BEx Scheda tecnica(HTML) 144 Page - STMicroelectronics

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Electrical characteristics
ST7263Bxx
144/186
Doc ID 7516 Rev 8
Figure 57.
Typical application with an external clock source
tWDG
Watchdog timeout
fCPU = 8MHz
49152
-
3145728
tCPU
6.144
-
393.216
ms
tOXOV
Crystal oscillator startup time
20(1)
30
40(1)
ms
tDDR
Power up rise time
from VDD = 0 to 4 V
-
-
100(1)
ms
1.
Not tested in production, guaranteed by characterization.
Table 62.
Control timing characteristics
Table 63.
External clock source
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VOSCINH OSCIN input pin high level voltage
see Figure 57
0.7xVDD
-VDD
V
VOSCINL OSCIN input pin low level voltage
VSS
-0.3xVDD
tw(OSCINH)
tw(OSCINL)
OSCIN high or low time(1)
15
-
-
ns
tr(OSCIN)
tf(OSCIN)
OSCIN rise or fall time(1)
--
15
IL
OSCx input leakage current
VSS≤VIN≤VDD
--
±1
μA
1.
Data based on design simulation and/or technology characteristics, not tested in production.
OSCIN
OSCOUT
fOSC
EXTERNAL
ST72XXX
CLOCK SOURCE
Not connected internally
VOSCINL
VOSCINH
tr(OSCIN)
tf(OSCIN)
tw(OSCINH)
tw(OSCINL)
IL
90%
10%



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