參數(shù)資料
型號： ST7FLU05MAE
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO8
封裝： 0.150 INCH, LEAD FREE, PLASTIC, SOP-8
文件頁數(shù)： 9/124頁
文件大?。?/td> 2186K
代理商： ST7FLU05MAE
Obsolete
Product(s)
- Obsolete
Product(s)
Electrical characteristics
ST7LUS5, ST7LU05, ST7LU09
106/124
12.8
I/O port pin characteristics
Subject to general operating conditions for VDD, fOSC, and TA unless otherwise specified.
Figure 46.
Two typical applications with unused I/O pin
Table 79.
General characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VIL
Input low level voltage
-40°C to 125°C
0.3VDD
V
VIH
Input high level voltage
0.7VDD
Vhys
Schmitt trigger voltage
hysteresis(1)
1.
Data based on characterization results, not tested in production
400
mV
Ilkg
Input leakage current
VSS < VIN < VDD
±1
A
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 58). 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)(4)
3.
The RPU pull-up equivalent resistor is based on a resistive transistor (corresponding IPU current
characteristics described in Figure 56).
4.
RPU not applicable on PA3 because it is multiplexed on RESET pin
VIN =VSS
VDD = 5V
70
120
200
k
VDD = 3.3V
200(1)
CIO
I/O pin capacitance
5
pF
tf(IO)out
Output high to low level fall
time(1)
CL = 50 pF
between 10% and 90%
25
ns
tr(IO)out
Output low to high level rise
time(1)
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
10k
Unused I/O port
ST7XXX
10k
Unused I/O port
ST7XXX
VDD
Caution: During normal operation the ICCCLK pin must be pulled up, internally or externally (external pull-up of 10k mandatory
Note: I/O can be left unconnected if it is configured as output (0 or 1) by the software. This has the advantage of greater EMC
robustness and lower cost.
in noisy environment). This is to avoid entering ICC mode unexpectedly during a reset.
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