STM6719 STMicroelectronics, STM6719 Datasheet

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... Table 1. Device summary Monitored voltages Part number V V CC1 CC2 ✔ ✔ STM6717 ✔ ✔ STM6718 ✔ ✔ STM6719 ✔ ✔ STM6720 ✔ ✔ STM6777 ✔ ✔ STM6778 ✔ STM6779 ✔ STM6780 August 2011 STM6717/6718/6719/6720 STM6777/6778/6779/6780 Dual/triple ultra-low voltage supervisors with push-button reset (with delay option) ≥ ...

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... Active-low, push-pull reset output (RST) - STM6718/20/78/ Active-low, open drain reset output (RST) - STM6717/19/77/ Push-button reset input (MR Manual reset delay input (MRC) - STM6777/78/79/80 Primary supply voltage monitoring input (V Secondary supply voltage monitoring input (V Adjustable reset comparator input (RSTIN; STM6719/20/79/80 Doc ID 11469 Rev CC1 ) . . . . . . . . . . . . . . . . . 8 CC2 ...

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STM6717/6718/6719/6720/STM6777/6778/6779/6780 List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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... Logic diagram (STM6777/78 Figure 3. Logic diagram (STM6719/20 Figure 4. Logic diagram (STM6779/80 Figure 5. STM6717/18 SOT23-5 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 6. STM6777/78 SOT23-6 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 7. STM6719/20 SOT23-6 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 8. STM6779/80 SOT23-6 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 9. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 10. Hardware hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 11. STM67xx interface to processor with bi-directional reset pins . . . . . . . . . . . . . . . . . . . . . . 10 Figure 12. ...

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STM6717/6718/6719/6720/STM6777/6778/6779/6780 1 Description The STM6717/18/19/20 and STM6777/78/79/80 supervisors are a family of low-voltage/low- supply current processor (micro or DSP) supervisors, designed to monitor two (or three) system power supply voltages. They are targeted at applications such as set-top boxes (STBs), ...

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... Description Figure 1. Logic diagram (STM6717/18 CC2 CC1 STM6717 MR STM6718 V SS Figure 3. Logic diagram (STM6719/20 CC2 CC1 RSTIN STM6719 STM6720 Table 2. Signal names MR Push-button reset input MRC Manual reset delay input RST Active-low reset output V Primary supply voltage input ...

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... STM6717/6718/6719/6720/STM6777/6778/6779/6780 Figure 5. STM6717/18 SOT23-5 connections 5 1 RST Figure 7. STM6719/20 SOT23-6 connections 6 1 RST 1.1 Pin descriptions 1.1.1 Active-low, push-pull reset output (RST) - STM6718/20/78/80 The RST pin is driven low and stays low whenever V factory-trimmed or adjustable reset threshold or when MR goes to logic low. It remains low ...

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... This function is available on the STM6717/18/19/20/77/78. Fixed (customer-selectable, factory-programmed) reset thresholds include 3. 0.79 V. 1.1.7 Adjustable reset comparator input (RSTIN; STM6719/20/79/80) This is a high impedance input. RST is driven low when the voltage at the RSTIN pin falls below 0.626 V (internal reference voltage at this comparator). The monitored voltage reset threshold is set with an external resistor-divider network ...

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... MRC ( input is available on STM6717/18/19/20/77/78. CC2 2. RSTIN available only on STM6719/20/79/80. 3. MRC available only on STM6777/78/79/80. Figure 10. Hardware hookup V CC3 = (626.5mV available only on STM6717/18/19/20/77/78. CC2 2. RSTIN available only on STM6719/20/79/80. 3. MRC available only on STM6777/78/79/80. V CC1 V RST1 COMPARE COMPARE V RST2 V REF/2 = 0.626 COMPARE V CC1 MR ...

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Operation 2 Operation 2.1 Applications information 1. Interfacing to processors with bi-directional reset pins Most processors with bi-directional reset pins can interface directly to the open drain RST outputs (STM6717/19/77/79). Systems simultaneously requiring a push-pull RST output and a bi-directional ...

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STM6717/6718/6719/6720/STM6777/6778/6779/6780 3 Typical operating characteristics Note: Typical values are at T Figure 13. Supply current vs. temperature ( –40 Figure 14. Supply current vs. temperature ( ...

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Typical operating characteristics Figure 15. Supply current vs. temperature ( –40 Figure 16. Supply current vs. temperature ( –40 12/30 ...

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STM6717/6718/6719/6720/STM6777/6778/6779/6780 Figure 17. Normalized V 1.07 1.05 1.03 1.01 0.99 0.97 Figure 18. Maximum V 1000 100 reset time-out period vs. temperature CC –40 – Temperature (°C) transient duration vs. reset threshold overdrive ...

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Typical operating characteristics Figure 19. Normalized V 1.004 1.002 1.000 0.998 0.996 Figure 20. Normalized V 1.004 1.002 1.000 0.998 0.996 14/30 STM6717/6718/6719/6720/STM6777/6778/6779/6780 threshold vs. temperature RST1 –40 – Temperature (°C) threshold vs. temperature RST2 –40 –20 0 ...

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STM6717/6718/6719/6720/STM6777/6778/6779/6780 Figure 21. Reset input threshold vs. temperature 630 629 628 627 626 625 624 –40 Figure 22. V CC1 –40 – Temperature (°C) -to-reset delay vs. temperature – Temperature ...

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Typical operating characteristics Figure 23. Reset input-to-reset output delay vs. temperature 29.0 28.5 28.0 27.5 27.0 26.5 26.0 25.5 25.0 –40 Figure 24. MR-to-reset output delay vs. temperature (V 500 480 460 440 420 400 16/30 STM6717/6718/6719/6720/STM6777/6778/6779/6780 – ...

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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 4. ...

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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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STM6717/6718/6719/6720/STM6777/6778/6779/6780 Table 6. DC and AC characteristics Alter- Sym Description native V Operating voltage supply current CC1 CC1 I V supply current CC2 CC2 (2) I Input leakage current LI Open drain RST output I LO leakage ...

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... RST2 TH2 CC2 V Reset threshold hysteresis HYST RST delay RST pulse width rec RP Adjustable reset comparator input (STM6719/20/79/80) V RSTIN input threshold RSTIN I RSTIN input current RSTIN RSTIN hysteresis RSTIN to RST t RSTIND output delay 20/30 STM6717/6718/6719/6720/STM6777/6778/6779/6780 (1) Test condition T (falling) ...

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STM6717/6718/6719/6720/STM6777/6778/6779/6780 Table 6. DC and AC characteristics (continued) Alter- Sym Description native Manual (push-button) reset input input voltage minimum pulse width (STM6717/18/19/20 MLMH MR MR minimum pulse width (STM6777/78/79/80 ...

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Package mechanical data 6 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 ...

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STM6717/6718/6719/6720/STM6777/6778/6779/6780 Figure 28. SOT23-5 – 5-lead small outline transistor package mechanical drawing Note: Drawing is not to scale. Table 8. SOT23-5 – 5-lead small outline transistor package mechanical data Symb ...

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Package mechanical data Figure 29. SOT23-6 – 6-lead small outline transistor package mechanical drawing Note: Drawing is not to scale. Table 9. SOT23-6 – 6-lead small outline transistor package mechanical data Symb ...

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STM6717/6718/6719/6720/STM6777/6778/6779/6780 Figure 30. Carrier tape for SOT23-5L and SOT23-6L T TOP COVER TAPE K 0 Note: Part pin 1 indicator is on bottom left for shipping method “F” and is on top right for shipping method “R” see Section Table ...

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... These are standard versions and are typically held in stock. A non-standard version may require a higher minimum volumes, and/or longer delivery times. For other options, or for more information on any aspect of this device, please contact the ST sales office nearest you. 2. Available in STM6719 version only. 3. Available in STM6717 version only. 4. Available for STM6720SY, STM6719SF and STM6719SFB versions only. 26/30 STM6717/6718/6719/6720/STM6777/6778/6779/6780 STM67xx ...

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... STM6718TG 3.075 STM6718TW 3.075 STM6718SV 2.925 STM6718SY 2.925 STM6718TZ 3.075 STM6719SF 2.925 STM6719SFB 2.925 STM6719TG 3.075 STM6719SH 2.925 STM6719TW 3.075 STM6719SV 2.925 STM6719SY 2.925 STM6719TZ 3.075 STM6720SF 2.925 STM6720TG 3.075 STM6720TW 3.075 STM6720SV 2.925 STM6720SY 2.925 STM6720TZ 3.075 STM6777SF 2.925 STM6777TG 3 ...

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Part numbering Table 12. Marking description (continued) Part number V threshold (V) RST1 STM6778SF 2.925 STM6778TG 3.075 STM6778TW 3.075 STM6778SV 2.925 STM6778SY 2.925 STM6778TZ 3.075 STM6779L 4.625 STM6779T 3.075 STM6779S 2.925 STM6779Y 2.188 STM6779V 1.575 STM6780L 4.625 STM6780T 3.075 STM6780S ...

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STM6717/6718/6719/6720/STM6777/6778/6779/6780 8 Revision history Table 13. Document revision history Date 18-Oct-2004 25-Oct-2004 14-Jan-2005 09-Feb-2005 08-Apr-2005 28-Jul-2005 13-Sep-2005 07-Oct-2005 07-Feb-2007 12-Jun-2007 05-Dec-2007 22-Mar-2010 02-Aug-2011 Revision 1 First draft 1.1 Descriptive text, sales types 1.2 Update characteristics, pin functions 1.3 Update characteristics ...

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... 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. ...