STM706T STMICROELECTRONICS [STMicroelectronics], STM706T Datasheet
STM706T
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STM706T Summary of contents
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... STM706T/S/R, STM706P, STM708T/S/R Features ■ Precision V monitor CC – STM706/708 T: 3. 3.15 V RST S: 2. 3.00 V RST R: STM706P: 2.59 V ■ RST and RST outputs ■ 200 ms (typ.) t rec ■ Watchdog timer - 1.6 s (typ.) ■ Manual reset input (MR) ■ Power-fail comparator (PFI/PFO) ■ Low supply current - 40 µA (typ.) ■ ...
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... RST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.6 PFI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.7 PFO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.1 Reset output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.2 Push-button reset input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.3 Watchdog input (STM706T/S/R and STM706P 3.4 Watchdog output (STM706T/S/R and STM706P 3.5 Power-fail input/output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 3.6 Ensuring a valid reset output down to V 3.7 Interfacing to microprocessors with bi-directional reset pins . . . . . . . . . . 13 4 Typical operating characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . and AC parameters ...
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... STM706T/S/R, STM706P, STM708T/S/R List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table 2. Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Table 3. Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Table 4. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Table 5. Operating and AC measurement conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Table 6. DC and AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Table 7. SO8 - 8-lead plastic small outline, 150 mils body width, package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Table 8. ...
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... STM706T/S/R and STM706P SO8 connections Figure 4. STM706T/S/R and STM706P TSSOP8 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 5. STM708T/S/R SO8 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 6. STM708T/S/R TSSOP8 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 7. Block diagram (STM706T/S/R and STM706P Figure 8. Block diagram (STM708T/S/ Figure 9. Hardware hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 10. Reset output valid to ground circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 11. Interfacing to microprocessors with bi-directional reset I Figure 12 ...
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... The STM706P is identical to the STM706R, except its reset output is active-high. These devices are available in a standard 8-pin SOIC package or a space-saving 8-pin TSSOP package. Figure 1. Logic diagram (STM706T/S/R and STM706P) 1. For STM706P only. Figure 2. Logic diagram (STM708T/S/R) condition occurs, the reset output ...
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... PFI Power-fail input PFO Power-fail output V Ground connect 1. For STM706P and STM708T/S/R only. Figure 3. STM706T/S/R and STM706P SO8 connections 1. For STM706P reset output is active-high. Figure 4. STM706T/S/R and STM706P TSSOP8 connections 1. For STM706P reset output is active-high. 6/33 STM706T/S/R, STM706P, STM708T/S/R Name SO8 MR 1 ...
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... STM706T/S/R, STM706P, STM708T/S/R Figure 5. STM708T/S/R SO8 connections Figure 6. STM708T/S/R TSSOP8 connections SO8 RST RST PFI 4 5 PFO TSSOP8 RST RST 2 7 PFO 3 6 PFI Doc ID 10518 Rev 10 Description AI08839 AI08840 7/33 ...
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... Output type is push-pull. CC when triggered, and stays low whenever V when triggered, and stays high whenever V , PFO goes low; otherwise, PFO remains high. Connect to PFI Doc ID 10518 Rev 10 STM706T/S/R, STM706P, STM708T/S/R is below the reset CC after either V rises above the rec CC ...
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... Figure 7. Block diagram (STM706T/S/R and STM706P) WDI WDI transitional detector PFI 1. For STM706P only. , PFO goes low; otherwise, PFO remains high. Leave open if PFI STM708T/S/R TSSOP8 SO8 TSSOP8 — ...
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... Pin descriptions Figure 8. Block diagram (STM708T/S/ PFI Figure 9. Hardware hookup Regulator Unregulated V IN voltage For STM706T/S/R and STM706P. 2. For STM706P and STM708T/S/R. 10/33 V COMPARE RST V COMPARE PFI STM706T/S/R; 0.1 F STM706P; STM708T/S/R WDI (1) WDO (1) From microprocessor PFI MR Push-button Doc ID 10518 Rev 10 ...
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... STM706T/S/R and STM706P. The timer remains cleared and does not count for as long as reset is asserted. As soon as reset is released, the timer starts counting. 3.4 Watchdog output (STM706T/S/R and STM706P) When V drops below the reset threshold, WDO will go low even if the watchdog timer has CC not yet timed out ...
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... A resistor value of approximately 100 k will be large enough to not load the output under operating conditions, but still sufficient to pull RST to ground during this low voltage condition (see Figure 10. Reset output valid to ground circuit 12/33 STM706T/S/R, STM706P, STM708T/S/R input to the STM70x or the micro STM70x RST ...
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... STM706T/S/R, STM706P, STM708T/S/R 3.7 Interfacing to microprocessors with bi-directional reset pins Microprocessors with bi-directional reset pins can contend with the STM70x reset output. For example, if the reset output is driven high and the micro wants to pull it low, signal contention will result. To prevent this from occurring, connect a 4.7k resistor between the reset output and the micro's reset I Figure 11 ...
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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 14/ ° Temperature (°C) Doc ID 10518 Rev 10 STM706T/S/R, STM706P, STM708T 100 120 AI09141b ...
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... STM706T/S/R, STM706P, STM708T/S/R Figure 13. V threshold vs. temperature PFI 1.270 1.265 2.5 V 1.260 3 3.3 V 1.255 3.6 V 1.250 1.245 1.240 1.235 1.230 1.225 –40 –20 Figure 14. Reset comparator propagation delay vs. temperature –40 – Temperature (°C) ...
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... Figure 16. Normalized reset threshold vs. temperature 1.004 1.002 1.000 0.998 0.996 –40 –20 16/33 STM706T/S/R, STM706P, STM708T/S Temperature (° Temperature (°C) Doc ID 10518 Rev 3 4 5.5 V 100 120 AI09144b ...
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... STM706T/S/R, STM706P, STM708T/S/R Figure 17. Watchdog timeout period vs. temperature 1.90 1.85 1.80 1.75 1.70 1.65 1.60 –40 –20 Figure 18. PFI to PFO propagation delay vs. temperature 4.0 3.0 2.0 1.0 0.0 –40 – Temperature (˚ Temperature (˚C) Doc ID 10518 Rev 10 Typical operating characteristics 100 120 AI09146b 3 ...
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... Typical operating characteristics Figure 19. Output voltage vs. load current (V 5.00 4.98 4.96 4. 18/33 STM706T/S/R, STM706P, STM708T/S ° OUT (mA) Doc ID 10518 Rev AI10496 ...
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... STM706T/S/R, STM706P, STM708T/S/R Figure 20. RST output voltage vs. supply voltage Figure 21. RST output voltage vs. supply voltage Typical operating characteristics V RST V CC 500 ms / div V RST V CC 500 ms / div Doc ID 10518 Rev ( AI09149b ...
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... Typical operating characteristics Figure 22. Power-fail comparator response time (assertion PFO 1.3 V PFI Figure 23. Power-fail comparator response time (de-assertion) PFO 0 V PFI 0 V 20/33 STM706T/S/R, STM706P, STM708T/S/R 500 ns / div 500 ns / div Doc ID 10518 Rev div 0 V 500 mV / div 0 V AI09153b div 1.3 V ...
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... STM706T/S/R, STM706P, STM708T/S/R Figure 24. Maximum transient duration vs. reset threshold overdrive 6000 5000 4000 3000 2000 1000 Reset occurs above the curve Reset comparator overdrive, V RST – (V) Doc ID 10518 Rev 10 Typical operating characteristics AI09156b 21/33 ...
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... Power dissipation D 1. Reflow at peak temperature of 260 °C. The time above 255 °C must not exceed 30 seconds. 2. Negative undershoot of –1.5 V for positive overshoot of V allowable on the WDI and MR input pins. 22/33 STM706T/S/R, STM706P, STM708T/S/R Parameter Off) –55 to 150 CC –0 –0.3 to 7.0 ...
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... STM706T/S/R, STM706P, STM708T/S 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 measurement conditions summarized in Table 5, operating and AC measurement conditions. Designers should check that the operating conditions in their circuit match the operating conditions when relying on the quoted parameters ...
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... DC and AC parameters Figure 27. MR timing waveform MR t MLRL (1) RST 1. RST for STM706P and STM708T/S/R. Figure 28. Watchdog timing (STM706T/S/R and STM706P RST WDI WDO 24/33 t rec t MLMH t rec Doc ID 10518 Rev 10 STM706T/S/R, STM706P, STM708T/S AI07837a AI08833 ...
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... STM706T/S/R, STM706P, STM708T/S/R Table 6. DC and AC characteristics Symbol Description V Operating voltage supply current CC CC Input leakage current (WDI) Input leakage current I (PFI) LI Input leakage current (MR) V Input high voltage (MR Input high voltage (WDI Input low voltage (MR Input low voltage (WDI) ...
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... Push-button reset input t MLMH MR pulse width ( MLRL MR to RST output delay ( MRD Watchdog timer (STM706T/S/R and STM706P) t Watchdog timeout period WD WDI pulse width 1. Valid for ambient operating temperature (min) = 1.0 V for °C to +85 ° For V falling. ...
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... STM706T/S/R, STM706P, STM708T/S/R 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. ® ECOPACK trademark. Doc ID 10518 Rev 10 Package mechanical data ® ...
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... Doc ID 10518 Rev 10 STM706T/S/R, STM706P, STM708T/S inches Typ. Min. — 0.053 — 0.004 — 0.013 — 0.007 — 0.189 — — — 0.150 0.050 — — 0.228 — ...
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... STM706T/S/R, STM706P, STM708T/S/R Figure 30. TSSOP8 – 8-lead, thin shrink small outline body size, outline A CP Note: Drawing is not to scale. Table 8. TSSOP8 - 8-lead, thin shrink small outline body size, mechanical data Symbol ...
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... Available in SO8 (M) package only. 2. Contact local ST sales office for availability. For other options, or for more information on any aspect of this device, please contact the ST sales office nearest you. 30/33 STM706 T 3. 2.70 V RST Doc ID 10518 Rev 10 STM706T/S/R, STM706P, STM708T/S ...
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... STM706T/S/R, STM706P, STM708T/S/R Table 10. Marking description Part number STM706P STM706T STM706S STM706R STM708T STM708S STM708R Reset threshold Package SO8 2.63 V TSSOP8 SO8 3.08 V TSSOP8 SO8 2.93 V TSSOP8 SO8 2.63 V TSSOP8 SO8 3.08 V TSSOP8 SO8 2.93 V TSSOP8 SO8 2.63 V TSSOP8 Doc ID 10518 Rev 10 Part numbering Topside marking 706P 706T ...
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... Section 2.7, text in Section Updated Table 4, corrected typo in 9 Section 5 and Section 6, 10 Updated Features, Section 4: Typical operating Doc ID 10518 Rev 10 STM706T/S/R, STM706P, STM708T/S/R Changes (Figure 10, 27 13, to 19, 21, to 25). (Figure 15, 19, 21, 22, 25; 3, Table 6). (Table 27). (Figure 2, to 10, 29; ...
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... STM706T/S/R, STM706P, STM708T/S/R 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. ...