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ST72344S2 데이터시트(PDF) 215 Page - STMicroelectronics

부품명 ST72344S2
상세설명  SCI asynchronous serial interface
PDF  247 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
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ST72344S2 데이터시트(HTML) 215 Page - STMicroelectronics

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ST72344xx, ST2345xx
Electrical characteristics
Doc ID 12321 Rev 6
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13.9
I/O port pin characteristics
Table 106.
Electrical sensitivities
Symbol
Parameter
Conditions
Class
LU
Static latch-up class
TA = +25°C
TA = +85°C
A
A
Table 107.
General characteristics (1)
1.
Subject to general operating conditions for VDD, fOSC, and TA unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VIL
Input low level voltage (4)
VSS - 0.3
0.3xVDD
V
VIH
Input high level voltage (4)
0.7xVDD
VDD + 0.3
Vhys
Schmitt trigger voltage
hysteresis (4)
400
mV
IL
Input leakage current
VSS ≤ VIN ≤ VDD
±1
µA
IS
Static current consumption
induced by each floating
input pin (2)
2.
Configuration not recommended, all unused pins must be kept at a fixed voltage: using the output mode of
the I/O for example or an external pull-up or pull-down resistor (see Figure 98). Static peak current value
taken at a fixed VIN value, based on design simulation and technology characteristics, not tested in
production. This value depends on VDD and temperature values.
Floating input mode
400
RPU
Weak pull-up equivalent
resistor (3)
3.
The RPU pull-up equivalent resistor is based on a resistive transistor.
VIN=VSS
VDD=5V
50
120
250
k
Ω
VDD=3V
160
CIO
I/O pin capacitance
5
pF
tf(IO)out
Output high to low level fall
time (4)
4.
Data based on validation/design results.
CL=50 pF
Between 10% and
90%
25
ns
tr(IO)out
Output low to high level rise
time (4)
25
tw(IT)in
External interrupt pulse
time (5)
5.
To generate an external interrupt, a minimum pulse width has to be applied on an I/O port pin configured
as an external interrupt source.
1tCPU



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