NE56604-42 Philips Semiconductors, NE56604-42 Datasheet
NE56604-42
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NE56604-42 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 ...
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... Watchdog when connected to ground. Used in conjunction with C Detection threshold adjustment pin. The detection threshold can be increased by connecting this pin to V threshold can be decreased by connecting this pin to ground with a pull-down resistor. Reset LOW output pin. 3 NE56604-42 TEMPERATURE RANGE VERSION SOP005 –20 to +70 C ...
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... RESET RESET Watchdog operation during power-on reset operation RESET RESET 1 M resistor (pin 2 to GND) pull-up resistor NE56604-42 MIN. MAX. –0.3 10 –0.3 10 –0.3 10 –0.3 10 –20 70 –40 125 – 250 MIN. TYP. – 0.7 = falling 4.05 4 ...
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... CC ), Watchdog reset time (t ), and power-on reset delay time (t WDR , t , and t values: PR WDM WDR 1000 1000 open NE56604-42 MIN. TYP. MAX. pulse 5.0 V 8.0 – CC 3.0 – 20 – = open 50 100 150 CT 1.0 2.0 3 100 150 T = 100 pF – ...
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... TO WATCHDOG 5.0 6.0 7.0 8.0 9.0 10.0 SL01303 3.0 4.0 5.0 6.0 SL01302 amb T = –25 C amb –0.8 –1.0 –1.2 –1.4 –1.6 –1.8 SL01300 6 NE56604-42 6.0 RESET PULL- 5 – amb 4.0 3 1.0 2.0 3.0 4.0 5.0 6 POWER SUPPLY VOLTAGE (V) CC Figure 4. RESET output voltage vs. supply voltage. 4 RISING ( ...
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... amb –8 –10 –12 –14 –16 –18 SL01298 100 SL01296 100 SL01294 7 NE56604-42 5 amb 4.4 4.2 4.0 3.8 3.6 0 –2.0 –4.0 –6.0 –8.0 –10 – RESET HIGH OUTPUT LEAKAGE CURRENT ( A) OM Figure 10. RESET HIGH-level voltage vs. current. ...
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... T Figure 17. Watchdog reset time vs. C 2003 Oct –1 10 1.0 10 SL01290 . 1 –1 10 1.0 10 SL01307 . T 8 NE56604- 5 amb 10 1.0 –1 –2 –3 –2 – 1 CAPACITANCE ( F) T Figure 16. Watchdog reset time vs 5 ...
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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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... CLK WDM C D TIME Figure 20. Timing diagram. 10 NE56604-42 causes the RESET signal CC is within normal T undervoltage threshold is reached. At that time, SL starts to rise, and the RESET voltage rises with V CC voltage does not start to ramp up until ‘F’, when V T upper threshold. ...
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... LOGIC SYSTEM 5.0 RESET 4.9 CLK 4.8 RESET 4.7 4.6 GND R 2 4.5 4.4 4.3 0 SL01328 Figure 24. Reset detection threshold vs. external R 11 Product data NE56604-42 from Pin shown in Figure 21. See use. 1 from Pin 7 to ground, as shown in Figure 23 use 5 amb 100 ...
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... Also see Figures 11 through 18 for typical time relationship performance. The effect the Watchdog timer monitoring time at room CT temperature for shown in Figure 25. T 2003 Oct 15 ), and power-on reset delay WDR Figure 25. Watchdog monitoring vs. pull-up resistor R 12 NE56604-42 100 amb ...
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... V (observed on CRT CC O1 value when V (observed on CRT from 3.0 V and observe the value of V CLK value when V (observed on CRT CC O1 value when V (observed on CRT NE56604- CLK CT RESET RESET ON 5 – ON 5 ...
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... PD1 5 PD2 5 – – – – NE56604- CLKA – 1 5 5 5.0 V – 5.0 V 5.0 V – 5.0 V 5.0 V – ...
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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 BAND BARCODE LABEL BOX 2003 Oct 15 TAPE 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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... This data sheet contains data from the product specification. Philips Semiconductors reserves the right to make changes at any time in order to improve the design, manufacturing and supply. Relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). Fax: + 24825 17 NE56604-42 Koninklijke Philips Electronics N.V. 2003 All rights reserved. Printed in U.S.A. Date of release: 10-03 Document order number: ...