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NE56610-39GW Datasheet(PDF) 8 Page - NXP Semiconductors |
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NE56610-39GW Datasheet(HTML) 8 Page - NXP Semiconductors |
8 / 9 page Philips Semiconductors NE56610/11/12 Series System Reset February 23, 2001 8 of 9 document number here Test Circuits Figure 16. Test Circuit 1 Figure 17. Test Circuit 2 2 1 5 4 VCC GND VOUT SUB M/R 3 VCC 10 µF V1 / 10V VRES A2 RL A1 V2 A - DC Ammeter V = DC Voltmeter 2 1 5 4 VCC GND VOUT SUB M/R 3 10 µF / 10V RL CL = 100pF CRT = Oscilliscope CRT 5.0 V Input Pulse VS typ -0.4V +0.4V 0V VS typ Input Pulse Application Information When the manual reset is not needed, the M/R, manual reset pin is connected to ground as shown in Figure 16 - Typical Hard Reset Circuit. A capacitor connected from VCC to ground is recommended when the VCC supply impedance is appreciably high. This may be the situation with a poor quality or aged battery. Figure 16. Typical Hard Reset Circuit The second example, shown in Figure 17 - Manual Reset Circuit, incorporates a manual reset switch from the M/R pin to VCC. When the manual switch is closed, VOUT reset is logic high. Conversely, when it is opened, VOUT reset is logic low. As a precaution a clamp diode is placed from the M/R pin to ground to insure that the pin does not go below - 0.3V. Figure 17. Manual Reset Circuit 23 1 54 VCC GND VOUT SUB M/R RL To VCC To CPU Reset Pin 23 1 54 VCC GND VOUT SUB M/R RL To VCC To CPU Reset Pin Clamp Manual Switch Diode |
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