ne56604-42d NXP Semiconductors, ne56604-42d Datasheet
ne56604-42d
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ne56604-42d Summary of contents
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... NE56604-42 System reset with built-in Watchdog timer Product data Supersedes data of 2001 Aug 22 INTEGRATED CIRCUITS 2003 Oct 15 ...
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... Philips Semiconductors System reset with built-in Watchdog timer GENERAL DESCRIPTION The NE56604-42 is designed to generate a reset signal at a threshold voltage of 4.2 V for a variety of microprocessor and logic systems. Accurate reset signals are generated during momentary power interruptions, or whenever power supply voltages sag to intolerable levels. The NE56604-42 has a built-in Watchdog Timer to monitor the microprocessor and ensure it is operating properly ...
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... PACKAGE TYPE NUMBER TYPE NUMBER NAME DESCRIPTION NE56604-42D SO8 plastic small outline package; 8 leads; body width 3.9 mm Part number marking The package is marked with a four letter code in the first line to the right of the logo. The first three letters designate the product. The fourth letter, represented by ‘ ...
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... Watchdog operation during power-on reset operation 0.2 mA RESET RESET – 0.1 V; RESET resistor (pin 2 to GND) pull-up resistor Product data NE56604-42 MIN. MAX. UNIT –0 –0 –0 –0 – –40 125 C – ...
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... L1 L1 RESET exceeds the upper detection threshold ( and power-on reset delay time (t WDR , t , and t values: PR WDM WDR ( Product data NE56604-42 MIN. TYP. MAX. UNIT 5.0 V 8.0 – – s 3.0 – – – – 100 150 ms 1 ...
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... Figure 6. Detection threshold vs. temperature. 600 RESET PULL- 2.2 k 500 400 T amb 300 200 100 T = –25 C amb 0 –1.4 –1.6 –1.8 0 –2 SL01300 Figure 8. RESET saturation vs. sink current. 6 Product data NE56604- – amb 2.0 3.0 4.0 5.0 6.0 7.0 8 POWER SUPPLY VOLTAGE (V) CC SL01304 ) ...
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... Figure 12. Watchdog monitoring time vs. temperature. 100 100 –40 –20 SL01294 Figure 14. Watchdog monitoring time vs. temperature. 7 Product data NE56604-42 –4.0 –6.0 –8.0 –10 –12 –14 –16 , RESET HIGH OUTPUT LEAKAGE CURRENT ( A) SL01297 100 T , AMBIENT TEMPERATURE ( C) amb ...
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... amb 1.0 –1 10 –2 10 –3 1 SL01307 . Figure 18. Watchdog monitoring time vs Product data NE56604-42 –2 – 1 CAPACITANCE ( F) T SL01291 . OPEN 2 1 470 200 k CT –2 –1 ...
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... If the microprocessor clock signal ceases or becomes erratic, the NE56604-42 outputs a reset signal to the microprocessor. If the microprocessor supply voltage sags to 4.2 volts or less, the NE56604-42 outputs a reset signal for the duration of the supply voltage deficiency. The undervoltage reset signal allows the microprocessor to shut down in an orderly manner to avoid system corruption ...
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... decays even further, RESET also decreases to zero WDM WDR TIME Figure 20. Timing diagram. 10 Product data NE56604-42 causes the RESET signal CC is within normal T continues reaches the T starts falling, CC undervoltage SL ...
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... RESET 4.9 CLK 4.8 RESET 4.7 4.6 GND 4.5 4.4 4.3 0 100 200 R , EXTERNAL PIN 7 TO GROUND RESISTOR ( SL01328 Figure 24. Reset detection threshold vs. external R 11 Product data NE56604- shown in Figure 21. See CC to use use 300 400 500 600 700 RESISTOR ( SL01326 . 5 ...
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... The effect the Watchdog timer monitoring time at room CT temperature for shown in Figure 25. T 2003 Oct 15 100 amb 10k 100k WATCHDOG TIMER CURRENT RESISTOR ( ) CT Figure 25. Watchdog monitoring vs. pull-up resistor R 12 Product data NE56604-42 10M 100M SL01329 . CT ...
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... HIGH state when I CLK value when V (observed on CRT ) transitions to an abrupt LOW state. The value when V (observed on CRT ) starts to track the Product data NE56604- Read CLK CT RESET RESET 5 – – 3.0 V 3.0 V – – ...
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... V A – 5 – 5 – 5 – 5 – 5 – 5 – 5 – 5 Product data NE56604- CRT CLKA CLK – – – – 5 – ...
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... Philips Semiconductors System reset with built-in Watchdog timer PACKING METHOD The NE56604-42 is packed in reels, as shown in Figure 28. GUARD TAPE BAND BARCODE LABEL BOX 2003 Oct 15 REEL ASSEMBLY Figure 28. Tape and reel packing method 15 Product data NE56604-42 TAPE DETAIL COVER TAPE CARRIER TAPE ...
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... Philips Semiconductors System reset with built-in Watchdog timer SO8: plastic small outline package; 8 leads; body width 3.9 mm 2003 Oct 15 16 Product data NE56604-42 SOP005 ...
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... Relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). Fax: + 24825 Document order number: 17 Product data NE56604-42 Koninklijke Philips Electronics N.V. 2003 All rights reserved. Printed in U.S.A. Date of release: 10-03 9397 750 12115 ...