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Número de pieza | STM1810 | |
Descripción | (STM1810 - STM1818) Low Power Reset Circuit | |
Fabricantes | ST Microelectronics | |
Logotipo | ||
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STM1810, STM1811, STM1812, STM1813
STM1815, STM1816, STM1817, STM1818
Low Power Reset Circuit
PRELIMINARY DATA
FEATURES SUMMARY
■ PRECISION MONITORING OF 3V, 3.3V,
AND 5V SUPPLY VOLTAGES
■ FOUR OUTPUT CONFIGURATIONS
– Push-Pull, Active-High (STM1812,1817)
– Push-Pull, Active-Low (STM1810,1815)
– Open Drain, Active-Low (STM1811,1816)
– Open Drain, Active-Low with Push-Button
Detect (STM1813,1818)
■ RESET PULSE WIDTH - 100ms (min)
■ LOW SUPPLY CURRENT - 4uA (typ)
■ GUARANTEED ASSERTION DOWN TO
VCC = 1.0V (0°C to 105°C)
■ FACTORY-TRIMMED RESET
THRESHOLDS OF 2.55V, 2.88V, 3.06V,
4.37V, and 4.62V (typ)
■ POWER SUPPLY TRANSIENT IMMUNITY
■ PUSH-BUTTON/MANUAL RESET DETECT
(STM1813/1818)
■ OPERATING TEMPERATURE:
–40°C TO 105°C
■ ±2.5% RESET THRESHOLD ACCURACY
(–40°C TO 105°C)
■ AVAILABLE IN THE SOT23-3 PACKAGE
■ FULLY COMPATIBLE WITH DS181x AND
MXD181x PRODUCTS
Figure 1. Packages
SOT23-3 (WX)
Table 1. Device Options
5V
3.3V/
3.0V
Active-Low
RESET
(Push-Pull)
Active-Low
RESET
(Open Drain)
Active-High
Active-Low RESET
RESET
(Open Drain,
(Push-Pull) Bi-directional, with MR Detect)
STM1810L/M ✔
✔
STM1811L/M ✔
✔(1)
STM1812L/M ✔
✔
STM1813L/M ✔
✔
STM1815T/S/R
✔✔
STM1816T/S/R
✔
✔(1)
STM1817T/S/R
✔
✔
STM1818T/S/R
✔
✔
Note: 1. Active-low RST with internal pull-up resistor
Rev 5
June 2005
1/20
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
1 page Figure 4. Hardware Hookup
VCC
STM1810/1811/1812/1813/1815/1816/1817/1818
VCC
STM181x
RST(1)
VSS
VCC
MCU
Push-button
RESET(2)
RESET
Input
VSS
Note: 1. RST for STM1812 and STM1817 (see Table 1., Device Options)
2. Only valid for STM1813 and STM1818.
AI09652a
FUNCTIONAL BLOCK DIAGRAMS
Figure 5. Push-pull Active-Low Output (STM1810/1812/1815/1817)
VCC VRST
COMPARE
trec
Generator
RST(1)
Note: 1. RST for STM1812 and STM1817.
Figure 6. Open Drain, Active-Low Output (STM1811/1816)
VCC
VRST
COMPARE
trec
Generator
AI09651a
5.5kΩ(1)
RST
Note: 1. 5.5kΩ internal pull-up resistor
AI09672
Figure 7. Open Drain, Active-Low Output (Bi-directional, Manual Reset Detect, STM1813/1818)
VCC
VRST
COMPARE
trec
Generator
Push-button
Detect
Note: 1. 5.5kΩ internal pull-up resistor
5.5kΩ(1)
RST
AI09673
5/20
5 Page STM1810/1811/1812/1813/1815/1816/1817/1818
Figure 16. VCC-to-Reset Output Delay vs. Temperature - VOD = VTH – VCC
3.0
2.5
2.0
1.5
1.0
0.5
0.0
–40 –20 0 20 40 60
Temperature (°C)
Figure 17. Voltage Output Low vs. ISINK
0.10
80 100
AI10404
0.08
0.06
VCC = 3V
0.04
0.02
0.00
01 23456
ISINK (mA)
AI10406
11/20
11 Page |
Páginas | Total 20 Páginas | |
PDF Descargar | [ Datasheet STM1810.PDF ] |
Número de pieza | Descripción | Fabricantes |
STM1810 | (STM1810 - STM1818) Low Power Reset Circuit | ST Microelectronics |
STM1811 | (STM1810 - STM1818) Low Power Reset Circuit | ST Microelectronics |
STM1812 | (STM1810 - STM1818) Low Power Reset Circuit | ST Microelectronics |
STM1813 | (STM1810 - STM1818) Low Power Reset Circuit | ST Microelectronics |
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