參數資料
型號: ST7DALI
廠商: 意法半導體
元件分類: ADC
英文描述: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI, DALI
中文描述: 8位單電壓閃存存儲器,數據EEPROM,模數轉換器,定時器,SPI和大理微控制器
文件頁數: 114/141頁
文件大?。?/td> 2175K
代理商: ST7DALI
ST7DALI
114/141
13.8 I/O PORT PIN CHARACTERISTICS
13.8.1 General Characteristics
Subject to general operating conditions for V
DD
, f
OSC
, and T
A
unless otherwise specified.
Notes:
1. Data based on characterization results, not tested in production.
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 69
). Data based on design simulation and/or technology
characteristics, not tested in production.
3. The R
PU
pull-up equivalent resistor is based on a resistive transistor (corresponding I
PU
current characteristics de-
scribed in
Figure 70
).
4. 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.
Figure 69. Two typical Applications with unused I/O Pin
Figure 70. Typical I
PU
vs. V
DD
with V
IN
=V
SS
90
Symbol
V
IL
V
IH
Parameter
Conditions
Min
Typ
Max
0.3xV
DD
V
DD
+ 0.3
Unit
Input low level voltage
Input high level voltage
Schmitt trigger voltage
hysteresis
1)
Input leakage current
Static current consumption
2)
V
SS
- 0.3
0.7xV
DD
V
V
hys
400
mV
I
L
I
S
V
SS
V
IN
V
DD
Floating input mode
±1
200
250
μ
A
R
PU
Weak pull-up equivalent
resistor
3)
V
IN
=
V
SS
V
DD
=5V
V
DD
=3V
50
120
160
5
k
C
IO
I/O pin capacitance
Output high to low level fall
time
1)
Output low to high level rise
time
1)
External interrupt pulse time
4)
pF
t
f(IO)out
C
L
=50pF
Between 10% and 90%
25
ns
t
r(IO)out
25
t
w(IT)in
1
t
CPU
10k
UNUSED I/O PORT
ST7XXX
10k
UNUSED I/O PORT
ST7XXX
V
DD
Caution
: During normal operation the ICCCLK pin must be pulled- up, internally or externally
(external pull-up of 10k mandatory in
noisy environment).
This is to avoid entering ICC mode unexpectedly during a reset.
TO BE CHARACTERIZED
0
10
20
30
40
50
60
70
80
2
2.5
3
3.5
4.5
5
5.5
6
Vd4
I
Ta=140°C
Ta=95°C
Ta=25°C
Ta=-45°C
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