ST72F63 STMICROELECTRONICS [STMicroelectronics], ST72F63 Datasheet - Page 109

• Manufacturer Part Number: ST72F63
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

13.8 I/O PORT PIN CHARACTERISTICS
13.8.1 General Characteristics
Subject to general operating conditions for V
Figure 61. Two typical Applications with unused I/O Pin
Figure 62. Typical I
Notes:
1. Unless otherwise specified, typical data are based on T
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
characteristics, not tested in production.
3. The R
scribed in
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.
Symbol
t
t
t
f(IO)out
r(IO)out
w(IT)in
V
R
V
V
C
V
I
100
I
hys
PU
L
S
IH
IN
IO
90
80
70
60
50
40
30
20
10
IL
0
PU
Figure
Input low level voltage
Input high level voltage
Input voltage
Schmitt trigger voltage hysteresis
Input leakage current
Static current consumption
Weak pull-up equivalent resistor
I/O pin capacitance
Output high to low level fall time
Output low to high level rise time
External interrupt pulse time
pull-up equivalent resistor is based on a resistive transistor (corresponding I
62). This data is based on characterization results.
V
DD
PU
Parameter
10k
Vdd (V)
vs. V
DD
UNUSED I/O PORT
with V
2)
4)
ST72XXX
IN
3)
=V
True open drain I/O pins
Other I/O pins
V
Floating input mode
V
C
Between 10% and 90%
SS
DD
SS
IN
L
-45°C
=50pF
25°C
75°C
, f
V
V
SS
CPU
IN
Conditions
Figure
A
=25°C and V
V
, and T
DD
Figure 63. Typical R
V
61). Data based on design simulation and/or technology
DD
170
160
150
140
130
120
110
100
90
80
70
60
=5V
A
unless otherwise specified.
DD
10k
=5V, not tested in production.
0.7xV
Min
V
50
1
SS
UNUSED I/O PORT
DD
PU
Vdd (V)
Typ
ST72XXX
PU
vs. V
400
90
25
25
5
current characteristics de-
1)
DD
0.3xV
with V
Max
V
200
120
6.0
±1
DD
DD
ST7263B
IN
=V
109/132
Unit
t
mV
CPU
SS
k
pF
ns
V
V
A
-45°C
25°C
75°C