ADM705 Analog Devices, ADM705 Datasheet
ADM705
Specifications of ADM705
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ADM705 Summary of contents
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... The ADM705 and ADM706 are identical except for the reset threshold monitor levels, which are 4.65 V and 4.40 V, respectively. The ADM707 and ADM708 provide a similar functionality to the ADM705 and ADM706 and only differ in that a watchdog timer function is not available. Instead, an active high reset output (RESET) is available as well as the active low reset output ( RESET ) ...
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... D to Rev. E Added RM-8 (MSOP) Package ......................................... Universal Changes to Table 2 ............................................................................ 4 Updated Outline Dimensions ....................................................... 12 Changes to Ordering Guide .......................................................... 12 Power-Fail RESET Output ...........................................................8 Manual Reset ..................................................................................8 Watchdog Timer (ADM705/ADM706) .....................................8 Power-Fail Comparator ................................................................8 Valid RESET Below Applications Information .............................................................. 10 Monitoring Additional Supply Levels ...................................... 10 Microprocessor with Bidirectional RESET ............................. 10 Outline Dimensions ....................................................................... 11 Ordering Guide .......................................................................... 12 11/05— ...
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... V − 1.5 CC 0.4 100 250 600 150 0.8 2.0 250 1.2 1.25 1.3 −25 +0.01 +25 V − 1.5 CC 0.4 Rev Page ADM705/ADM706/ADM707/ADM708 Unit Test Conditions/Comments V μA V ADM705/ADM707 V ADM706/ADM708 800 μA SOURCE 3.2 mA SINK μA CC SINK 1 100 μA CC SINK V ADM707/ADM708 800 μA SOURCE ...
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... ADM705/ADM706/ADM707/ADM708 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 2. Parameter V CC All Other Inputs Input Current V CC GND Digital Output Current Power Dissipation, N-8 PDIP θ Thermal Impedance JA Power Dissipation, R-8 SOIC θ Thermal Impedance JA Power Dissipation, RM-8 MSOP θ Thermal Impedance JA Operating Temperature Range ...
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... V being below the reset threshold low signal on the CC manual reset input (MR). RESET remains low whenever V threshold (4. ADM705/ADM707, 4. ADM706/ADM708). It remains low for 200 ms after V goes above the reset threshold or MR goes from low to CC high. A watchdog timeout does not trigger RESET unless WDO is connected to MR. ...
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... ADM705/ADM706/ADM707/ADM708 TYPICAL PERFORMANCE CHARACTERISTICS A1 4.50V 100 RESET 1V 1V Figure 6. RESET Output Voltage vs. Supply Voltage A1 4.50V 100 RESET Figure 7. ADM707/ADM708 RESET Output Voltage vs. Supply Voltage 1.3V PFI 5V 500msH O 1.2V PFO 500msH O Rev Page 25°C A 500ns/DIV Figure 8 ...
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... 25° 100ns/DIV Figure 10. RESET , RESET Assertion 5V RESET 25° 100ns/DIV Figure 11. RESET , RESET Deassertion ADM705/ADM706/ADM707/ADM708 RESET 0V 5V RESET 0V Rev Page 25°C A 2μs/DIV Figure 12. ADM705/ADM707 RESET Response Time 4V 0V ...
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... RESET MR WDO Figure 13. RESET , MR , and WDO Timing WATCHDOG TIMER (ADM705/ADM706) The watchdog timer circuit can be used to monitor the activity of the microprocessor to check that it is not stalled in an indefinite loop. An output line on the processor is used to toggle the watch- dog input (WDI) line. If this line is not toggled within the timeout period (1 ...
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... MID ⎝ ⎠ R2 ADM705/ADM706/ADM707/ADM708 VALID RESET BELOW The ADM705/ADM706/ADM707/ADM708 are guaranteed to provide a valid reset level with V Performance Characteristics section the internal transistor does not have sufficient drive to hold the voltage RESET pull-down resistor can be connected externally, as shown in required ...
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... This limits the current to a safe level if there are conflicting output reset levels. A suitable resistor value is 4.7 kΩ. If the reset output is required for other uses, it should be buffered, as shown in Figure 21. Rev Page RESET RESET ADM705/ MICROPROCESSOR ADM706 PFI PFO MR GND 5V BUFFERED RESET ...
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... CORNER LEADS MAY BE CONFIGURED AS WHOLE OR HALF LEADS. Figure 22. 8-Lead Plastic Dual-in-Line Package [PDIP] Narrow Body (N-8) Dimensions shown in inches and (millimeters) 0.50 (0.0196) × 45° 0.25 (0.0099) 8° 0° 1.27 (0.0500) 0.25 (0.0098) 0.40 (0.0157) 0.17 (0.0067) Rev Page ADM705/ADM706/ADM707/ADM708 0.325 (8.26) 0.310 (7.87) 0.300 (7.62) 0.195 (4.95) 0.130 (3.30) 0.115 (2.92) 0.014 (0.36) 0.010 (0.25) 0.008 (0.20) 0.430 (10.92) MAX 3.20 3.00 2.80 5 ...
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... ADM705ANZ −40°C to +85°C ADM705AR −40°C to +85°C ADM705AR–REEL −40°C to +85°C ADM705AR–REEL7 −40°C to +85°C 1 ADM705ARZ −40°C to +85°C 1 ADM705ARZ–REEL −40°C to +85°C 1 ADM705ARZ–REEL7 −40°C to +85°C ADM706AN −40°C to +85°C ...