Datasheet

DocID15962 Rev 13 91/131
STM8L151xx, STM8L152xx Electrical parameters
112
NRST pin
Subject to general operating conditions for V
DD
and T
A
unless otherwise specified.
Figure 31. Typical NRST pull-up resistance R
PU
vs V
DD
Table 42. NRST
pin characteristics
Symbol Parameter Conditions Min
Typ
Max Unit
V
IL(NRST)
NRST input low level voltage
(1)
V
SS
-0.8
V
V
IH(NRST)
NRST input high level voltage
(1)
1.4 -
V
DD
V
OL(NRST)
NRST output low level voltage
(1)
I
OL
= 2 mA
for 2.7 V  V
DD
 3.6
V
--
0.4
I
OL
= 1.5 mA
for V
DD
< 2.7 V
--
V
HYST
NRST input hysteresis
(3)
10%V
DD
(2)
--mV
R
PU(NRST)
NRST pull-up equivalent resistor
(1)
30 45 60 k
V
F(NRST)
NRST input filtered pulse
(3)
--50
ns
V
NF(NRST)
NRST input not filtered pulse
(3)
300 - -
1. Data based on characterization results, not tested in production.
2. 200 mV min.
3. Data guaranteed by design, not tested in production.
30
35
40
45
50
55
60
1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6
V
DD
[V]
Pull-up resistance [k
Ω
]
-40°C
25°C
90°C
130°C