STM1812 STMicroelectronics, STM1812 Datasheet - Page 19
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STM1812
Manufacturer Part Number
STM1812
Description
Low Power Reset Circuit
Manufacturer
STMicroelectronics
Datasheet
1.STM1810.pdf
(25 pages)
Specifications of STM1812
Operating Temperature
–40 °C to 105 °C
± 2.5% Reset Threshold Accuracy
(–40 °C to 105 °C)
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STM1810/1811/1812/1813/1815/1816/1817/1818
Table 9.
1. Valid for ambient operating temperature: T
2. The STM1811/1813/1816/1818 have an internal pull-up resistor which may sink 1 mA of current.
Reset thresholds
Push-button reset detect (STM1813, STM1818)
t
Sym.
C
PBRST
V
V
V
I
I
V
t
V
I
t
OH
OUT
RST
CC
OL
RD
PB
OH
CC
IH
IL
native
Alter-
t
rec
DC and AC characteristics
Operating voltage
V
Input high voltage
Input low voltage
Output high voltage
RST output source current
RST output source current
RST output sink current
RST output sink current
Output capacitance
Reset threshold
V
RST pulse width
Push-button detect to RST
Push-button RST time-out
Internal pull-up resistance
CC
CC
supply current
to RST delay
Description
(2)
A
= –40 °C to 105 °C; V
V
(STM1810/1811/1813/1815/1816/1818)
Doc ID11464 Rev 8
CC
V
V
STM181xM
STM181xS
STM181xR
STM181xT
V
CC
STM181xL
V
CC
V
≥ V
CC
OUT
CC
≤ V
≥ 2.7 V, reset not asserted,
= (V
(STM1810/STM1815)
(STM1812/STM1817)
RST
V
V
T
STM1813/1818 only
STM1813/1818 only
= 0.4 V, (STM1812/1817)
≥ 2.7 V, reset asserted,
A
Test condition
T
CC
CC
RST
0 < I
From rising edge
(V
A
STM1813/1818
STM1811/1816
STM1813/1818
= –40 to +105 °C
TH
V
(max.), reset not asserted
= 0 to +105 °C
TH
V
= 3.6 V, no load
= 5.5 V, no load
OUT
(min.), reset asserted
CC
OH
CC
+ 100 mV) falling to
– 200 mV)
= 1.2 V to 5.5 V (except where noted).
Rising
< 500 µA
= 0.4 V
–40 to 105 °C
–40 to 105 °C
–40 to 105 °C
–40 to 105 °C
–40 to 105 °C
(1)
25 °C
25 °C
25 °C
25 °C
25 °C
DC and AC parameters
– 0.5
Min.
4.50
4.25
2.98
2.80
2.47
V
V
100
100
1.0
1.2
0.7
1.5
3.5
3.1
10
10
CC
CC
– 0.1
Typ. Max. Unit
4.62
4.37
3.06
2.88
2.55
V
350
350
150
150
5.5
5.5
4
9
2
CC
4.75
4.49
3.15
2.97
2.64
200
200
5.5
5.5
0.4
7.5
7.5
10
16
10
5
19/25
mA
mA
ms
ms
µA
µA
µA
µA
pF
kΩ
kΩ
µs
µs
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V