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STM812SW16F

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STM809/810/811/812 DC and AC parameters
Doc ID 9873 Rev 5 13/21
5 DC and AC parameters
This section summarizes the operating measurement conditions, and the DC and AC
characteristics of the device. The parameters in the DC and AC characteristics tables that
follow, are derived from tests performed under the measurement conditions summarized in
Table 4.. Designers should check that the operating conditions in their circuit match the
operating conditions when relying on the quoted parameters.
Table 4. Operating and AC measurement conditions
Figure 13. AC testing input/output waveforms
Figure 14. MR
timing waveform
1. RST for STM810/812
Parameter STM809/810/811/812 Unit
V
CC
supply voltage 1.0 to 5.5 V
Ambient operating temperature (T
A
) –40 to 85 °C
Input rise and fall times ≤ 5ns
Input pulse voltages 0.2 to 0.8 V
CC
V
Input and output timing ref. voltages 0.3 to 0.7 V
CC
V
AI02568
0.8V
CC
0.2V
CC
0.7V
CC
0.3V
CC
AI07837a
RST
(1)
MR
tMLRL
trec
tMLMH
DC and AC parameters STM809/810/811/812
14/21 Doc ID 9873 Rev 5
Table 5. DC and AC characteristics
Sym
Alter-
native
Description Test condition
(1)
Min Typ Max Unit
V
CC
Operating voltage
T
A
= –40 to +85 °C 1.2 5.5 V
T
A
= 0 to +70 °C 1.0 5.5 V
I
CC
V
CC
supply current
V
CC
< 3.6 V 5.5 10 µA
V
CC
< 5.5 V 7 15 µA
V
IH
MR input high voltage
V
CC
> V
RST
(max), STM8XXL/M 2.2 V
V
CC
> V
RST
(max), STM8XXR/S/T 0.7 V
CC
V
V
IL
MR input low voltage
V
CC
> V
RST
(max), STM8XXL/M 0.8 V
V
CC
> V
RST
(max), STM8XXR/S/T 0.25 V
CC
V
V
OL
RST output low voltage
(active high
(2)
or low)
STM8XXR/S/T only,
I
OL
= 1.2 mA
V
CC
= V
RST
(min)
0.3 V
STM8XXL/M only,
I
OL
= 3.2 mA
V
CC
= V
RST
(min)
0.4 V
V
OL
RST output low voltage I
OL
= 50 µA; V
CC
> 1.0 V 0.3 V
V
OH
RST output high voltage
STM8XXR/S/T only,
I
OH
= 500 µA
0.8 V
CC
V
STM8XXL/M only,
I
OH
= 800 µA
0.8 V
CC
V
RST output high voltage
I
OH
= 150 µA,
1.8 V < V
CC
< V
RST
(min)
0.8 V
CC
V
Reset thresholds
V
RST
Reset threshold
STM8XXL
25 °C 4.56 4.63 4.70 V
–40 to 85 °C 4.50 4.75 V
STM8XXM
25 °C 4.31 4.38 4.45 V
–40 to 85 °C 4.25 4.50 V
STM8XXT
25 °C 3.04 3.08 3.11 V
–40 to 85 °C 3.00 3.15 V
STM8XXS
25 °C 2.89 2.93 2.96 V
–40 to 85 °C 2.85 3.00 V
STM8XXR
25 °C 2.59 2.63 2.66 V
–40 to 85 °C 2.55 2.70 V
V
RST
temperature
coefficient
V
CC
= 3.3 V 45
ppm/
°C
V
CC
to RST delay
V
CC
= V
RST
to
(V
RST
– 100 mV)
STM8XXL/M 40 µs
STM8XXR/S/T 20 µs
STM809/810/811/812 DC and AC parameters
Doc ID 9873 Rev 5 15/21
Push-button reset input
t
MLMH
t
MR
MR pulse width 10 µs
t
MLRL
t
MRD
MR to RST output
delay
(3)
0.5 µs
MR
glitch immunity
(4)
100 ns
MR pull-up resistance 10 20 30 kΩ
t
rec
RST pulse width 140 210 280 ms
1. Valid for ambient operating temperature: T
A
= –40 to 85 °C; V
CC
= 1.2 V to 5.5 V (except where noted).
2. For active high (RST); V
CC
= V
RST
(max)
3. RST output for STM810/812
4. “Glitches” of 100 ns or less typically will not generate a reset pulse.
Sym
Alter-
native
Description Test condition
(1)
Min Typ Max Unit
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STM812SW16F

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Buy STM812SW16F
Manufacturer:
STMicroelectronics
Description:
Supervisory Circuits 2.93V Reset 140ms
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