Datasheet

STM8S207xx, STM8S208xx Electrical characteristics
Doc ID 14733 Rev 12 75/103
Figure 32. Typ. V
DD -
V
OH
@ V
DD
= 3.3 V (high sink ports)
10.3.7 Reset pin characteristics
Subject to general operating conditions for V
DD
and T
A
unless otherwise specified.
Figure 33. Typical NRST V
IL
and V
IH
vs V
DD
@ 4 temperatures
0
0.25
0.5
0.75
1
1.25
1.5
1.75
2
02468101214
-40˚C
25˚C
85˚C
125˚C
I OL [mA]
V
DD
- V
OH
[V]
Table 41. NRST pin characteristics
Symbol Parameter Conditions Min Typ
1)
Max Unit
V
IL(NRST)
NRST Input low level voltage
(1)
-0.3 V 0.3 x V
DD
VV
IH(NRST)
NRST Input high level voltage
(1)
0.7 x V
DD
V
DD
+ 0.3
V
OL(NRST)
NRST Output low level voltage
(1)
I
OL
= 2 mA 0.5
R
PU(NRST)
NRST Pull-up resistor
(2)
30 55 80 kΩ
t
IFP(NRST)
NRST Input filtered pulse
(3)
75 ns
t
INFP(NRST)
NRST Input not filtered pulse
(3)
500 ns
t
OP(NRST)
NRST output pulse
(1)
15 µs
1. Data based on characterization results, not tested in production.
2. The R
PU
pull-up equivalent resistor is based on a resistive transistor
3. Data guaranteed by design, not tested in production.
0
1
2
3
4
5
6
2.5 3 3.5 4 4.5 5 5.5 6
-40˚C
25˚C
85˚C
125˚C
V DD [V]
V
IL
/V
IH
[V]