ADM706 Analog Devices, ADM706 Datasheet
ADM706
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ADM706 Summary of contents
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... INPUT (PFI) The ADM706R, ADM706S, and ADM706T are identical except for the reset threshold monitor levels, which are 2.63 V, 2.93 V, and 3.08 V, respectively. The ADM706P is identical to the ADM706R in that the reset threshold is 2. differs only in that it has an active high reset output. The ADM708R/ADM708S/ADM708T provide similar functio- nality as the ADM706R/ADM706S/ADM706T and only differ as low ...
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... A to Rev. B Updated Format .................................................................. Universal Changes to Table 1 ............................................................................ 3 Updated Outline Dimensions ....................................................... 12 Changes to Ordering Guide .......................................................... 13 Power-Fail Reset ......................................................................... 10 Manual Reset ............................................................................... 10 Watchdog Timer (ADM706x) .................................................. 10 Power-Fail Comparator ............................................................. 11 Adding Hysteresis to the Power-Fail Comparator ................. 11 Valid RESET Below Applications Information .............................................................. 12 Monitoring Additional Supply Levels ...................................... 12 Microprocessors with Bidirectional RESET ........................... 12 Outline Dimensions ...
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... ADM706P/ADM706R/ADM706S/ADM706T, ADM708R/ADM708S/ADM708T SPECIFICATIONS 5.5 V (ADM706P/ADM70xR unless otherwise noted. Table 1. Parameter POWER SUPPLY V Operating Voltage Range CC Supply Current LOGIC OUTPUT Reset Threshold (V ) RST Reset Threshold Hysteresis RESET PULSE WIDTH RESET OUTPUT VOLTAGE (ADM70xR/ADM70xS/ADM70xT RESET OUTPUT VOLTAGE (ADM706P) ...
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... ADM706P/ADM706R/ADM706S/ADM706T, ADM708R/ADM708S/ADM708T Parameter MANUAL RESET INPUT MR Pull-Up Current ( Pulse Width MR INPUT THRESHOLD RESET OUTPUT DELAY POWER-FAIL INPUT PFI Input Threshold PFI Input Current PFO OUTPUT VOLTAGE Min Typ Max Unit ...
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... ADM706P/ADM706R/ADM706S/ADM706T, ADM708R/ADM708S/ADM708T 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 Operating Temperature Range Industrial (Version A) Lead Temperature (Soldering, 10 sec) ...
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... ADM706P/ADM706R/ADM706S/ADM706T, ADM708R/ADM708S/ADM708T PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS GND 3 PFI 4 Table 3. Pin Function Descriptions ADM706P/ADM706R/ADM706S/ADM706T Pin No. Mnemonic GND 4 PFI 5 PFO 6 WDI 7 (ADM706R/ADM706S/ RESET ADM706T Only) 7 (ADM706P Only) RESET 8 WDO WDO ADM706P RESET WDI GND ...
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... ADM706P/ADM706R/ADM706S/ADM706T, ADM708R/ADM708S/ADM708T Table 4. Pin Function Descriptions ADM708R/ADM708S/ADM708T Pin No. Mnemonic Description 1 MR Manual Reset Input. When taken below 0 RESET/RESET is generated. MR can be driven from TTL, CMOS logic, or from a manual reset switch because it is internally debounced. An internal 70 μA pull-up current holds the input high when floating. ...
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... ADM706P/ADM706R/ADM706S/ADM706T, ADM708R/ADM708S/ADM708T TYPICAL PERFORMANCE CHARACTERISTICS V CC RESET 400ms/DIV Figure 6. ADM70xR/ADM70xS/ADM70xT RESET Output Voltage vs. Supply Voltage V CC RESET 400ms/DIV Figure 7. RESET Output Voltage vs. Supply Voltage 1.3V PFI 3V 500ns/DIV Figure 8. PFI Assertion Response Time 1.2V PFO 3. 25° 1.2V PFO 0V 0V Rev Page ...
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... ADM706P/ADM706R/ADM706S/ADM RESET 2µs/DIV Figure 12. ADM70xR/ADM70xS/ADM70xT RESET Response Time 706T, ADM708R/ADM708S/ADM708T T = 25° Rev Page ...
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... The reset output is guaranteed to remain valid with This ensures that the microprocessor is held in a stable shutdown condition as the power supply starts up. The ADM706P provides an active high RESET signal; the ADM706R/ADM706S/ADM706T provide an active low RESET signal; and the ADM708R/ADM706S/ADM706T provide both RESET and RESET ...
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... MID VALID RESET BELOW The ADM706R/ADM706S/ADM706T, ADM708R/ADM708S/ ADM708T are guaranteed to provide a valid reset level with V Figure low Refer to the Typical Performance Characteristics section have sufficient drive to hold the voltage on RESET is no longer held pull-down resistor, as shown in be connected externally to hold the line low required ...
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... MICROPROCESSORS WITH BIDIRECTIONAL RESET To prevent contention for microprocessors with a bidirectional reset line, a current limiting resistor inserted between the ADM706R/ADM706S/ADM706T, ADM708R/ADM708S/ ADM708T RESET output pin and the microprocessor reset pin. This limits the current to a safe level if there are conflicting output reset levels. A suitable resistor value is 4.7 kΩ ...
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... ADM706P/ADM706R/ADM706S/ADM706T, ADM708R/ADM708S/ADM708T OUTLINE DIMENSIONS 0.210 (5.33) MAX 0.150 (3.81) 0.130 (3.30) 0.115 (2.92) 0.022 (0.56) 0.018 (0.46) 0.014 (0.36) CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. CORNER LEADS MAY BE CONFIGURED AS WHOLE OR HALF LEADS. 0.25 (0.0098) ...
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... ADM706P/ADM706R/ADM706S/ADM706T, ADM708R/ADM708S/ADM708T ORDERING GUIDE Model Temperature Range ADM706PAN −40°C to +85°C 1 ADM706PANZ −40°C to +85°C ADM706PAR −40°C to +85°C ADM706PAR-REEL −40°C to +85°C 1 ADM706PARZ −40°C to +85°C 1 ADM706PARZ-REEL −40°C to +85°C ADM706RAN −40°C to +85°C ...
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... ADM706P/ADM706R/ADM706S/ADM706T, ADM708R/ADM708S/ADM708T NOTES Rev Page ...
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... ADM706P/ADM706R/ADM706S/ADM706T , ADM708R/ADM708S/ADM708T NOTES ©1995–2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06435-0-5/08(C) Rev Page ...