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ST7263BEx Scheda tecnica(PDF) 159 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) 159 Page - STMicroelectronics

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ST7263Bxx
Electrical characteristics
Doc ID 7516 Rev 8
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13.10.2
SCI interface
Subject to general operating condition for VDD, fCPU, and TA unless otherwise specified.
Refer to I/O port characteristics for more details on the input/output alternate function
characteristics (RDI and TDO).
Table 74.
USB low-speed electrical characteristics
Symbol
Parameter
Conditions
Min
Max
Unit
Driver characteristics:
-
-
tr
Rise time
CL=50 pF
(1)
1.
For more detailed information, please refer to Chapter 7 (Electrical) of the USB specification (version 1.1).
75
-
ns
CL=600 pF
(1)
-300
ns
tf
Fall Time
CL=50 pF
(1)
75
-
ns
CL=600 pF
(1)
-300
ns
trfm
Rise/ fall time matching
tr/tf
80
120
%
VCRS
Output signal crossover voltage
1.3
2.0
V
Table 75.
SCI characteristics
Symbol
Parameter
Conditions
Standard
Baud
Rate
Unit
fCPU
Accuracy
vs.
standard
Prescaler
fTx
fRx
Communication
frequency
8MHz ~0.16%
Conventional mode
TR (or RR)=128, PR=13
TR (or RR)= 32, PR=13
TR (or RR)= 16, PR=13
TR (or RR)= 8, PR=13
TR (or RR)= 4, PR=13
TR (or RR)= 16, PR= 3
TR (or RR)= 2, PR=13
TR (or RR)= 1, PR=13
300
1200
2400
4800
9600
10400
19200
38400
~300.48
~1201.92
~2403.84
~4807.69
~9615.38
~10416.67
~19230.77
~38461.54
Hz



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