Details, datasheet, quote on part number: STM708
PartSTM708
Category
Description3V Supervisor
CompanyST Microelectronics, Inc.
DatasheetDownload STM708 datasheet
Quote
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Features, Applications

PRECISION VCC MONITOR T: 3.00V VRST S: 2.88V VRST STM706P: 2.59V VRST 2.70V RST AND RST OUTPUTS 200ms (TYP) trec WATCHDOG TIMER - 1.6sec (TYP) MANUAL RESET INPUT (MR) POWER-FAIL COMPARATOR (PFI/PFO) LOW SUPPLY CURRENT - 40A (TYP) GUARANTEED RST (RST) ASSERTION DOWN TO VCC = 1.0V OPERATING TEMPERATURE: to 85C (Industrial Grade)

Watchdog Input STM706P(2) STM708 Watchdog Output Active-Low RST(1) Active-High RST(1) Manual Reset Input Power-fail Comparator

Note: 1. Push-Pull Output 2. The STM706P is identical to the STM706R, except its reset output is active-high.

FEATURES SUMMARY. 1 Figure 1. Packages. 1 Table 1. Device Options. 1 SUMMARY DESCRIPTION. 4 Figure 2. Logic Diagram (STM706/706P). 4 Figure 3. Logic Diagram (STM708). 4 Table 2. Signal Names. 4 Figure STM706/706P SO8 Connections. 5 Figure STM706/706P TSSOP8 Connections. 5 Figure STM708 SO8 Connections. 5 Figure STM708 TSSOP8 Connections. 5 Table 3. Pin Description. 5 Figure 8. Block Diagram (STM706/706P). 6 Figure 9. Block Diagram (STM708). 7 Figure 10.Hardware Hookup. 7 OPERATION. 8 Reset Output. 8 Push-button Reset Input. 8 Watchdog Input (STM706/706P). 8 Watchdog Output (STM706/706P). 8 Power-fail Input/Output. 8 Ensuring a Valid Reset Output Down to VCC 0V. 8 Figure 11.Reset Output Valid to Ground Circuit. 8 Interfacing to Microprocessors with Bi-directional Reset Pins. 9 Figure 12.Interfacing to Microprocessors with Bi-directional Reset I/O. 9 TYPICAL OPERATING CHARACTERISTICS. 9 Figure 13.Supply Current vs. Temperature (no load). 9 Figure 14.VPFI Threshold vs. Temperature. 10 Figure 15.Reset Comparator Propagation Delay vs. Temperature. 10 Figure 16.Power-up trec vs. Temperature. 10 Figure 17.Normalized Reset Threshold vs. Temperature. 11 Figure 18.Watchdog Time-out Period vs. Temperature. 11 Figure 19.PFI to PFO Propagation Delay vs. Temperature. 12 Figure 20.RST Output Voltage vs. Supply Voltage. 12 Figure 21.RST Output Voltage vs. Supply Voltage. 13 Figure 22.RST Response Time (Assertion). 13 Figure 23.RST Response Time (Assertion). 14 Figure 24.Power-fail Comparator Response Time (Assertion). 14 Figure 25.Power-fail Comparator Response Time (De-Assertion). 15 Figure 26.VCC to Reset Propagation Delay vs. Temperature. 15

Figure 27.Maximum Transient Duration vs. Reset Threshold Overdrive. 16 MAXIMUM RATING. 16 Table 4. Absolute Maximum Ratings. 16 DC and AC PARAMETERS. 17 Table 5. Operating and AC Measurement Conditions. 17 Figure 28.AC Testing Input/Output Waveforms. 17 Figure 29.Power-fail Comparator Waveform. 17 Figure 30.MR Timing Waveform. 18 Figure 31.Watchdog Timing (STM706/706P). 18 Table 6. DC and AC Characteristics. 18 PACKAGE MECHANICAL. 20 Figure 8-lead Plastic Small Outline, 150 mils body width, Package Mechanical. 20 Table 8-lead Plastic Small Outline, 150 mils body width, Package Mechanical Data. 20 Figure 8-lead, Thin Shrink Small Outline, 3x3mm body size, Outline. 21 Table 8-lead, Thin Shrink Small Outline, 3x3mm body size, Mechanical Data. 21 PART NUMBERING. 22 Table 9. Ordering Information Scheme. 22 Table 10. Marking Description. 23 REVISION HISTORY. 24 Table 11. Document Revision History. 24


 

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