stm1818r STMicroelectronics, stm1818r Datasheet
stm1818r
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stm1818r Summary of contents
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STM1810 STM1811 STM1812 STM1813 STM1815 STM1816 STM1817 STM1818 Features Precision monitoring 3.3 V, and 5 V supply voltages Four output configurations: – Push-Pull, Active-High (STM1812,1817) – Push-Pull, Active-Low (STM1810,1815) – Open Drain, Active-Low (STM1811,1816) – Open ...
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Contents Contents 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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STM1810/1811/1812/1813/1815/1816/1817/1818 List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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List of figures List of figures Figure 1. Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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STM1810/1811/1812/1813/1815/1816/1817/1818 1 Description STM181x devices are low power reset devices used to monitor power supplies for microcontrollers. They perform a single function: asserting a reset signal whenever V supply voltage drops below a preset value and keeping it asserted until ...
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Description Table 2. Signal names V Ground SS RST Active-low Reset Output (1) RST Active-high Reset Output V Supply Voltage and Input for Reset Threshold Monitor CC 1. For STM1812, STM1817. Figure 3. SOT23-3 connections 2. RST for STM1812 and ...
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STM1810/1811/1812/1813/1815/1816/1817/1818 1.1 Functional block diagrams Figure 5. Push-pull active-low output (STM1810/1812/1815/1817 RST for STM1812 and STM1817. Figure 6. Open drain, active-low output (STM1811/1816) 1. 5.5 k internal pull-up resistor. Figure 7. Open drain, active-low output (bidirectional, manual reset ...
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Description 1.2.3 Active-high RST output (push-pull) Pulses high when V threshold. It remains high for t 1.2.4 Active-low RST output (open drain with internal 5.5 k pull-up) with manual reset detect Pulses low when V remains low for t PBRST ...
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STM1810/1811/1812/1813/1815/1816/1817/1818 2 Operation 2.1 Reset output The STM181x asserts a reset signal to the Microcontroller (MCU) whenever V below the reset threshold (V 105 °C). A microcontroller’s (MCU) reset input starts the MCU in a known state. The STM1810 - ...
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Operation threshold and lasts 20 µs or less will not cause a reset pulse. A 0.1 µF bypass capacitor mounted as close as possible to the V 2.5 Valid RST output down to V When V falls below 1 V, ...
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STM1810/1811/1812/1813/1815/1816/1817/1818 Figure 10. Manual reset timing diagram, switch bounce/debounce (STM1813/1818 (Open) External Push-button RST Figure 11. Interfacing MCUs with bidirectional reset pins (RST, open drain, STM1811/1816) Figure 12. Valid reset (RST) output down ~100 k ...
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Operation Figure 13. Valid reset (RST) output down ~100 k resistor recommended. 12/25 STM1810/1811/1812/1813/1815/1816/1817/1818 STM1812 CC STM1817 RST (push-pull ( MCU RST Input V ...
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STM1810/1811/1812/1813/1815/1816/1817/1818 3 Typical operating characteristics Typical values are at T Figure 14. Supply current vs. temperature (no load –40 Figure 15. Normalized reset time-out period ( 155 153 151 149 147 ...
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Typical operating characteristics Figure 16 Figure 17. Voltage output low vs. I 0.20 0.16 0.12 0.08 0.04 0.00 14/25 STM1810/1811/1812/1813/1815/1816/1817/1818 -to-reset output delay vs. temperature - –40 – Temperature ...
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STM1810/1811/1812/1813/1815/1816/1817/1818 Figure 18. Voltage output high vs. I Figure 19. Normalized reset threshold vs. temperature SOURCE 0.30 0.25 0.20 0.15 0.10 0.05 0.00 0.0 0.5 1.0 1.5 Output Current (mA) 1.010 1.005 1.000 0.995 0.990 –40 – Temperature ...
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Typical operating characteristics Figure 20. Max transient duration NOT causing reset pulse vs. reset threshold overdrive 1. Reset occurs above the line. 16/25 STM1810/1811/1812/1813/1815/1816/1817/1818 100 Reset Threshold Overdrive ...
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... These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute maximum rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. Table 7. ...
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DC and AC parameters 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 ...
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STM1810/1811/1812/1813/1815/1816/1817/1818 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 ...
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Package mechanical 6 Package mechanical In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the ...
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STM1810/1811/1812/1813/1815/1816/1817/1818 Table 10. SOT23-3 – 3-lead small outline transistor package mechanical data Symbol Typ Min Max 0.89 1.12 0.01 0.10 0.88 1.02 0.30 0.50 0.08 ...
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Part numbering 7 Part numbering Table 11. Ordering information scheme Example: Device Type STM181x Reset Threshold Voltage STM1810 - 1813 4. 4.75 V (4.62 V typ) RST 4. ...
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... STM1815S STM1815R STM1816T STM1816S STM1816R STM1817T STM1817S STM1817R STM1818T STM1818S STM1818R letter assigned to indicate assembly work week (i.e WW01 and WW02 WW03 and WW04 WW05 and WW06..., Z = WW51, WW52, and WW53). Reset Threshold Output 4.62 V Push-pull RST 4.37 V Push-pull RST 4.62 V Open Drain RST 4 ...
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Revision history 8 Revision history Table 13. Document revision history Date Revision 26-Aug-04 05-Oct-04 19-Nov-04 07-Dec-04 29-Jun-05 11-Oct-05 28-Aug-2007 24/25 STM1810/1811/1812/1813/1815/1816/1817/1818 1.0 First Issue. 2.0 Update reset characteristics, add typical graphs, remove SC70 references (Figure , 11, ...
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... STM1810/1811/1812/1813/1815/1816/1817/1818 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...