STM1815R STMICROELECTRONICS [STMicroelectronics], STM1815R Datasheet
STM1815R
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STM1815R Summary of contents
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STM1810, STM1811, STM1812, STM1813 STM1815, STM1816, STM1817, STM1818 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 ...
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STM1810/1811/1812/1813/1815/1816/1817/1818 TABLE OF CONTENTS FEATURES SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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MAXIMUM RATING ...
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STM1810/1811/1812/1813/1815/1816/1817/1818 SUMMARY DESCRIPTION STM181x devices are low power reset devices used to monitor power supplies for microcontrol- lers. They perform a single function: asserting a reset signal whenever V supply voltage drops CC below a preset value and keeping it ...
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Figure 4. Hardware Hookup V CC Note: 1. RST for STM1812 and STM1817 (see 2. Only valid for STM1813 and STM1818. FUNCTIONAL BLOCK DIAGRAMS Figure 5. Push-pull Active-Low Output (STM1810/1812/1815/1817 RST Note: 1. RST for STM1812 and ...
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STM1810/1811/1812/1813/1815/1816/1817/1818 PIN DESCRIPTIONS See Figure 2., Logic Diagram Names for a brief overview of the signals connect this device. Active-Low RST Output (Push-pull). Pulses low when V drops below V CC RST long below the ...
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OPERATION Reset Output The STM181x asserts a reset signal to the Micro- controller (MCU) whenever V reset threshold (V ), and is guaranteed valid RST down 1.0V (0° to 105°C). A microcontrol- CC ler’s (MCU) reset input ...
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STM1810/1811/1812/1813/1815/1816/1817/1818 Figure 9. Push-Button Manual Reset with MR Detect (STM1813/1818 STM1813 STM1818 Figure 10. Manual Reset Timing Diagram, Switch Bounce/Debounce (STM1813/1818 (Open) External Push-button RST Figure 11. Interfacing MCUs with Bi-Directional Reset Pins (RST, Open Drain, ...
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Figure 12. Valid Reset (RST) Output Down STM1810 STM1815 Note: 1. ~100 k resistor recommended. Figure 13. Valid Reset (RST) Output Down STM1812 STM1817 Note: 1. ~100 k resistor recommended. STM1810/1811/1812/1813/1815/1816/1817/1818 = ...
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STM1810/1811/1812/1813/1815/1816/1817/1818 TYPICAL OPERATING CHARACTERISTICS Note: Typical values are Figure 14. Supply Current vs. Temperature (no load –40 –20 Figure 15. Normalized Reset Time-out Period (t 1.07 1.05 1.03 1.01 0.99 –40 ...
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Figure 16. V -to-Reset Output Delay vs. Temperature - V CC 3.0 2.5 2.0 1.5 1.0 0.5 0.0 –40 –20 Figure 17. Voltage Output Low vs. I 0.10 0.08 0.06 0.04 0.02 0. STM1810/1811/1812/1813/1815/1816/1817/1818 ...
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STM1810/1811/1812/1813/1815/1816/1817/1818 Figure 18. Voltage Output High vs. I 1.20 1.00 0.80 0.60 0.40 0.20 0.00 0.0 1.0 Figure 19. Normalized Reset Threshold vs. Temperature 1.010 1.005 1.000 0.995 0.990 –40 –20 12/20 SOURCE 2.0 3.0 4.0 I SOURCE (mA) 0 ...
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Figure 20. Max Transient Duration NOT Causing Reset Pulse vs. Reset Threshold Overdrive Note: Reset occurs above the line. STM1810/1811/1812/1813/1815/1816/1817/1818 100 Reset Threshold Overdrive (mV) 1000 AI10408 13/20 ...
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STM1810/1811/1812/1813/1815/1816/1817/1818 MAXIMUM RATING Stressing the device above the rating listed in the Absolute Maximum Ratings” table may cause per- manent damage to the device. These are stress ratings only and operation of the device at these or any other conditions ...
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Table 9. DC and AC Characteristics Alter- Sym Description native V Operating Voltage Supply Current Input High Voltage IH V Input Low Voltage IL V Output High Voltage OH RST Output Source Current I ...
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STM1810/1811/1812/1813/1815/1816/1817/1818 PACKAGE MECHANICAL Figure 22. SOT23-3 – 3-lead Small Outline Transistor Package Outline 0. SOT23-3 Note: Drawing is not to scale. Table 10. SOT23-3 – 3-lead Small ...
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PART NUMBERING Table 11. Ordering Information Scheme Example: Device Type STM181x Reset Threshold Voltage STM1810 - 1813 4.50V to 4.75V (4.62 typ) RST 4.25V to 4.49V (4.37 typ) RST STM1815 - 1818: ...
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... STM1810/1811/1812/1813/1815/1816/1817/1818 Table 12. Marking Description Part Number STM1810L STM1810M STM1811L STM1811M STM1812L STM1812M STM1813L STM1813M STM1815T STM1815S STM1815R STM1816T STM1816S STM1816R STM1817T STM1817S STM1817R STM1818T STM1818S STM1818R 18/20 Reset Threshold 4.62V Push-Pull RST 4.37V Push-Pull RST 4.62V Open Drain RST 4.37V Open Drain RST 4 ...
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REVISION HISTORY Table 13. Document Revision History Date Revision 26-Aug-04 1.0 05-Oct-04 2.0 19-Nov-04 3.0 07-Dec-04 4.0 29-Jun-05 5 STM1810/1811/1812/1813/1815/1816/1817/1818 Revision Details First Issue Update reset characteristics, add typical graphs, remove SC70 references (Figure 11, 12, ...
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STM1810/1811/1812/1813/1815/1816/1817/1818 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its ...