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ST7263BEx Scheda tecnica(PDF) 143 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) 143 Page - STMicroelectronics

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ST7263Bxx
Electrical characteristics
Doc ID 7516 Rev 8
143/186
Figure 56.
Typ. IDD in Wait at fCPU= 4 and 8 MHz
13.5
Clock and timing characteristics
Subject to general operating conditions for VDD, fCPU, and TA.
Idd WFI (mA) at fcpu=4 and 8MHz
0
2
4
6
8
10
4
4.2
4.4
4.6
4.8
5
5.2
5.4
Vdd (V)
8MHz
4MHz
ai15594
Table 61.
General timings
Symbol
Parameter
Conditions
Min
Typ(1)
1.
Data based on typical application software.
Max
Unit
tc(INST) Instruction cycle time
fCPU=8 MHz
23
12
tCPU
250
375
1500
ns
tv(IT)
Interrupt reaction time(2)
tv(IT) = Δtc(INST) + 10 tCPU
2.
Time measured between interrupt event and interrupt vector fetch.
Δt
c(INST) is the number of tCPU cycles
needed to finish the current instruction execution.
fCPU=8 MHz
10
-
22
tCPU
1.25
-
2.75
μs
Table 62.
Control timing characteristics
Symbol
Parameter
Conditions
Value
Unit
Min
Typ.
Max
fOSC
Oscillator frequency
-
-
24
MHz
fCPU
Operating frequency
-
-
8
MHz
tRL
External reset input pulse width
2520
-
-
ns
tPORL
Internal power reset duration
4096
-
-
tCPU
tWDGL
Watchdog or low voltage reset
output pulse width
200
300
-
ns



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