Electrical characteristics
Figure 32. Typ. V
STM8S207xx, STM8S208xx
V
@ V = 3.3 V (high sink ports)
DD - OH
DD
-40˚C
2
25˚C
1.75
1.5
85˚C
125˚C
1.25
1
0.75
0.5
0.25
0
0
2
4
6
8
10
12
14
IOL [mA]
10.3.7
Reset pin characteristics
Subject to general operating conditions for V and T unless otherwise specified.
DD
A
Table 41. NRST pin characteristics
Symbol
Parameter
Conditions
Min
Typ 1)
Max
Unit
VIL(NRST)
VIH(NRST)
VOL(NRST)
RPU(NRST)
tIFP(NRST)
NRST Input low level voltage (1)
NRST Input high level voltage (1)
-0.3 V
0.3 x VDD
VDD + 0.3
0.5
0.7 x VDD
V
NRST Output low level voltage (1)
NRST Pull-up resistor (2)
IOL= 2 mA
30
40
60
kΩ
ns
ns
µs
NRST Input filtered pulse (3)
75
tINFP(NRST) NRST Input not filtered pulse (3)
tOP(NRST)
NRST output pulse (1)
500
15
1. Data based on characterization results, not tested in production.
2. The RPU pull-up equivalent resistor is based on a resistive transistor
3. Data guaranteed by design, not tested in production.
Figure 33. Typical NRST V and V vs V @ 4 temperatures
IL
IH
DD
-40˚C
25˚C
85˚C
125˚C
6
5
4
3
2
1
0
2.5
3
3.5
4
4.5
DD [V]
5
5.5
6
V
76/103
Doc ID 14733 Rev 9
STMICROELECTRONICS [ ST ]
