STM6822SWY6F STMicroelectronics, STM6822SWY6F Datasheet

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Features ■ Precision V monitoring power supplies ■ RST outputs (active-low, push-pull or open drain) ■ RST outputs (active-high, push-pull) ■ Reset pulse width ...

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Contents Contents 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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STM6321/6322STM6821/6822/6823/6824/6825 List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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List of figures List of figures Figure 1. Logic diagram (STM6821/6822/6823 ...

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STM6321/6322STM6821/6822/6823/6824/6825 1 Description The STM6xxx supervisors are self-contained devices which provide microprocessor supervisory functions. A precision voltage reference and comparator monitors the V for an out-of-tolerance condition. When an invalid V (RST) is forced low (or high in the case ...

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Description Figure 3. STM6822/6823 SOT23-5 connections 1. Open drain for STM6822. Figure 4. STM6821 SOT23-5 connections 1. Push-pull only. Figure 5. STM6322/6825 SOT23-5 connections 1. Open drain for STM6322. 2. Push-pull only. Figure 6. STM6321/6824 SOT23-5 connections 1. Open drain ...

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STM6321/6322STM6821/6822/6823/6824/6825 1.1 Pin descriptions 1.1.1 Active-low, push-pull reset output (RST) - 6823/6824/6825 Pulses low when triggered, and stays low whenever V when logic low. It remains low for t threshold, the watchdog triggers a reset ...

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Description Figure 7. Block diagram (STM6821/6822/6823) 1. Push-pull for STM6823, open drain for STM6822. 2. Active-high (push-pull) for STM6821. Figure 8. Block diagram (STM6321/6824) 3. Active-low (open drain) for STM6321, active-low (push-pull) for STM6824. 4. Push-pull only. Figure 9. Block ...

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STM6321/6322STM6821/6822/6823/6824/6825 Figure 10. Hardware hookup 1. For STM6321/6821/6822/6823/6824. 2. For STM6322/6821/6822/6823/6825. 3. For STM6821/ (RST output only). 4. For STM6321/6322/6824/6825 (both RST and RST outputs). Doc ID 11110 Rev 10 Description 9/29 ...

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Operation 2 Operation 2.1 Reset output The STM6xxx supervisor asserts a reset signal to the MCU whenever V reset threshold (V (MR) is taken low. Reset is guaranteed valid for °C. During power-up, once V the reset ...

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STM6321/6322STM6821/6822/6823/6824/6825 2.3 Push-button reset input (STM6322/6821/6822/6823/6825) A logic low on MR asserts reset. Reset remains asserted while MR is low, and for t Figure 25 on page resistor, allowing left open if not used. This input can ...

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Operation Figure 12. Ensuring RST valid to V Figure 13. Ensuring RST valid This configuration does not work on open drain outputs of the STM6321/6322/6822. 2.6 Interfacing to microprocessors with bidirectional reset pins Microprocessors with bidirectional reset ...

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STM6321/6322STM6821/6822/6823/6824/6825 3 Typical operating characteristics Figure 15 Figure 16. Supply current vs. temperature -to-reset output delay vs. temperature Doc ID 11110 Rev 10 Typical operating characteristics 13/29 ...

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Typical operating characteristics Figure 17. MR-to-reset output delay vs. temperature Figure 18. Normalized power-up t 14/29 STM6321/6322STM6821/6822/6823/6824/6825 vs. temperature rec Doc ID 11110 Rev 10 ...

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STM6321/6322STM6821/6822/6823/6824/6825 Figure 19. Normalized reset threshold voltage vs. temperature Figure 20. Normalized power-up watchdog timeout period Typical operating characteristics Doc ID 11110 Rev 10 15/29 ...

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Typical operating characteristics Figure 21. Voltage output low vs. I Figure 22. Voltage output high vs. I 16/29 STM6321/6322STM6821/6822/6823/6824/6825 SINK SOURCE Doc ID 11110 Rev 10 ...

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STM6321/6322STM6821/6822/6823/6824/6825 Figure 23. Maximum transient duration vs. reset threshold overdrive Typical operating characteristics Doc ID 11110 Rev 10 17/29 ...

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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 documents. Table 4. ...

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STM6321/6322STM6821/6822/6823/6824/6825 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 ...

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Package mechanical data 6 Package mechanical data Table 6. DC and AC characteristic Alter- Sym Description native V Operating voltage CC V supply current CC (MR and WDI unconnected supply current CC (MR unconnected; STM6322/6825) Input leakage ...

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STM6321/6322STM6821/6822/6823/6824/6825 Table 6. DC and AC characteristic (continued) Alter- Sym Description native Output high voltage (RST Output high voltage (RST) Reset thresholds (5) V Reset threshold RST Reset threshold hysteresis V to RST delay CC (V – V ...

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Package mechanical data Table 6. DC and AC characteristic (continued) Alter- Sym Description native Reset threshold temperature coefficient Push-button reset input pulse width MLMH RST output delay MLRL MRD MR glitch immunity ...

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STM6321/6322STM6821/6822/6823/6824/6825 7 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ...

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Package mechanical data Figure 27. SOT23-5 – 5-lead small outline transistor package mechanical drawing 1. Drawing is not to scale. Table 7. SOT23-5 – 5-lead small outline transistor package mechanical data Symb ...

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STM6321/6322STM6821/6822/6823/6824/6825 Figure 28. Carrier tape for SOT23-5 package T TOP COVER TAPE K 0 Table 8. Carrier tape dimensions for SOT23-5 package Package 8.00 1.50 1.75 SOT23-5 +0.30 +0.10/ ±0.10 –0.10 –0. ...

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Part numbering 8 Part numbering Table 9. Ordering information scheme Example: Device type STM6xxx Reset threshold voltage 4.514 to 4.746 V RST 4.270 to 4.490 V RST 3.000 to 3.150 V ...

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... Part number STM6321LWY6F STM6321MAWY6F STM6321MWY6F STM6321TWY6F STM6321SWY6F STM6321RWY6F STM6322LWY6F STM6322MWY6F STM6322TWY6F STM6322SWY6F STM6322RWY6F STM6821LWY6F STM6821MWY6F STM6821TWY6F STM6821SWY6F STM6821RWY6F STM6822LWY6F STM6822MWY6F STM6822TWY6F STM6822SWY6F STM6822RWY6F STM6822ZWY6F STM6822YWY6F STM6823LWY6F STM6823MWY6F STM6823TJWY6F STM6823TWY6F STM6823SJWY6F STM6823SWY6F STM6823RJWY6F STM6823RWY6F STM6823ZWY6F STM6824LWY6F STM6824MWY6F STM6824TWY6F STM6824SWY6F STM6824RWY6F STM6825LWY6F STM6825MWY6F ...

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Revision history 9 Revision history Table 11. Document revision history Date 25-Aug-2004 15-Dec-2004 10-Mar-2005 17-Jun-2005 11-Apr-2006 11-Aug-2006 25-May-2007 03-Jun-2008 09-Apr-2009 06-Jan-2011 28/29 STM6321/6322STM6821/6822/6823/6824/6825 Revision 1 First draft 2 Update characteristics 3 Document promoted to Datasheet status 4 Package marking update ...

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... STM6321/6322STM6821/6822/6823/6824/6825 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. ...