STM705M6F STMicroelectronics, STM705M6F Datasheet
STM705M6F
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STM705M6F Summary of contents
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Features ■ operating voltage ■ Precision V monitor CC – STM705/707/813L – 4. 4.75 V RST – STM706/708 – 4.25 V 4.50 V RST ■ RST and RST outputs ■ 200 ms (typ) t rec ■ ...
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Contents Contents 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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STM705, STM706, STM707, STM708, STM813L List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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List of figures List of figures Figure 1. Logic diagram (STM705/706/813L ...
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STM705, STM706, STM707, STM708, STM813L 1 Description The STM705/706/707/708/813L supervisors are self-contained devices which provide microprocessor supervisory functions. A precision voltage reference and comparator monitors the V CC occurs, the reset output (RST) is forced low (or high in the ...
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Description Table 2. Signal names 1. For STM813L only. Figure 3. STM705/706/813L SO8 connections 1. For STM813L, reset output is active-high. Figure 4. STM705/706/813L TSSOP8 connections 1. For STM813L, reset output is active-high. 6/33 STM705, STM706, STM707, STM708, STM813L MR ...
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STM705, STM706, STM707, STM708, STM813L Figure 5. STM707/708 SO8 connections Figure 6. STM707/708 TSSOP8 connections SO8 RST RST PFI PFO 4 5 TSSOP8 RST RST ...
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Pin descriptions 2 Pin descriptions 2 logic low on MR asserts the reset output. Reset remains asserted as long low and for t after MR returns high. This active-low input has an internal pull-up. It ...
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STM705, STM706, STM707, STM708, STM813L 2.7 PFO When PFI is less than V unused. Output type is push-pull. Table 3. Pin description Pin STM707 STM813L STM708 — 8 — — ...
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Pin descriptions Figure 8. Block diagram (STM707/708 PFI Figure 9. Hardware hookup Unregulated voltage For STM705/706/813L. 10/33 STM705, STM706, STM707, STM708, STM813L COMPARE V RST V PFI COMPARE 5 V Regulator V ...
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STM705, STM706, STM707, STM708, STM813L 3 Operation 3.1 Reset output The STM705/706/707/708/813L supervisor asserts a reset signal to the MCU whenever V goes below the reset threshold (V CC MR), or when the push-button reset input (MR) is taken low. ...
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Operation 3.4 Watchdog output (STM705/706/813L) When V drops below the reset threshold, WDO will go low even if the watchdog timer has CC not yet timed out. However, unlike the reset output, WDO goes high as soon as V exceeds ...
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STM705, STM706, STM707, STM708, STM813L 3.7 Interfacing to microprocessors with bidirectional reset pins Microprocessors with bidirectional reset pins can contend with the STM705-708 reset output. For example, if the reset output is driven high and the micro wants to pull ...
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Typical operating characteristics 4 Typical operating characteristics Typical values are at T Figure 12. Supply current vs. temperature (no load –40 –20 Figure 13. V threshold vs. temperature PFI 1.270 1.265 V CC ...
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STM705, STM706, STM707, STM708, STM813L Figure 14. Reset comparator propagation delay vs. temperature –40 –20 Figure 15. Power-up t vs. temperature rec 240 235 230 225 220 215 210 ...
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Typical operating characteristics Figure 16. Normalized reset threshold vs. temperature 1.004 1.002 1.000 0.998 0.996 –40 –20 Figure 17. Watchdog time-out period vs. temperature 1.90 1.85 1.80 1.75 1.70 1.65 1.60 –40 –20 16/33 STM705, STM706, STM707, STM708, STM813L 0 ...
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STM705, STM706, STM707, STM708, STM813L Figure 18. PFI to PFO propagation delay vs. temperature 4.0 3.0 2.0 1.0 0.0 –40 –20 Figure 19. Output voltage vs. load current (V 5.00 4.98 4.96 4. Temperature ...
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Typical operating characteristics Figure 20. RST output voltage vs. supply voltage Figure 21. RST output voltage vs. supply voltage 18/33 STM705, STM706, STM707, STM708, STM813L V RST V ...
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STM705, STM706, STM707, STM708, STM813L Figure 22. RST response time (assertion RST 4.603 °C. RST Typical operating characteristics 5 µs / div Doc ID 10520 Rev 9 1 ...
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Typical operating characteristics Figure 23. RST response time (assertion div RST div 4.603 °C. RST Figure 24. Power-fail comparator response time (assertion ...
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STM705, STM706, STM707, STM708, STM813L Figure 25. Power-fail comparator response time (de-assertion) PFO 0 V PFI 0 V Figure 26. Maximum transient duration vs. reset threshold overdrive 6000 5000 4000 3000 2000 1000 500 ...
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Maximum ratings 5 Maximum ratings Stressing the device above the rating listed in the absolute maximum ratings table may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other ...
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STM705, STM706, STM707, STM708, STM813L 6 DC and AC parameters This section summarizes the operating and measurement conditions, and the DC and AC characteristics of the device. The parameters in the DC and AC characteristics tables that follow, are derived ...
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DC and AC parameters Figure 29. MR timing waveform MR t MLRL (1) RST 1. RST for STM805. Figure 30. Watchdog timing (STM705/706/813L rec RST WDI WDO 24/33 STM705, STM706, STM707, STM708, STM813L t rec t MLMH ...
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STM705, STM706, STM707, STM708, STM813L Table 6. DC and AC characteristics Sym Description V Operating voltage supply current CC CC Input leakage current (MR) Input leakage current (PFI Input leakage current (WDI) V Input high ...
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DC and AC parameters Table 6. DC and AC characteristics Sym Description Reset thresholds (3) V Reset threshold RST Reset threshold hysteresis t RST pulse width rec Push-button reset input t MLMH MR pulse width ( ...
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STM705, STM706, STM707, STM708, STM813L 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 ...
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Package mechanical data Figure 31. SO8 – 8-lead plastic small outline, 150 mils body width, outline Drawing is not to scale. Table 7. SO8 - 8-lead plastic small outline, 150 mils body width, pack. mech. data Symbol ...
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STM705, STM706, STM707, STM708, STM813L Figure 32. TSSOP8 – 8-lead, thin shrink small outline body size, outline Drawing is not to scale. Table 8. TSSOP8 - 8-lead, thin shrink small outline ...
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Part numbering 8 Part numbering Table 9. Ordering information scheme Example: Device type and reset threshold voltage STM705/707/813L = V STM706/708 = V RST RST pulse width Blank = 140 to 280 ms ( 160 to 280 ms ...
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STM705, STM706, STM707, STM708, STM813L 9 Revision history Table 11. Document revision history Date Sep-2003 31-Oct-2003 12-Dec-2003 16-Jan-2004 09-Apr-2004 25-May-2004 02-Jul-2004 21-Sep-2004 08-Mar-2005 02-Nov-2009 06-Aug-2010 Revision 1 Initial release. 1.1 Update Table 6. Reformatted; update characteristics 2 29, 30, Table ...
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... STM705, STM706, STM707, STM708, STM813L 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. ...