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RNA51953AFPH0 Datasheet(PDF) 7 Page - Renesas Technology Corp |
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RNA51953AFPH0 Datasheet(HTML) 7 Page - Renesas Technology Corp |
7 / 11 page RNA51953A, B Preliminary R03DS0009EJ0500 Rev.5.00 Page 7 of 10 Jun 19, 2012 Example of Application Circuit Reset Circuit of RNA51953 RL VCC RNA51953x RESET Logic circuit GND Delay capacitor GND Cd Power- supply Power- supply Output Figure 1 Reset Circuit of RNA51953 Notes: 1. The delay time is about 0.34 Cd (pF) s. 2. If the RNA51953 and the logic circuit share a common power source, type A (built-in load type) can be used whether a pull-up resistor is included in the logic circuit or not. 3. The logic circuit preferably should not have a pull-down resistor, but if one is present, add load resistor RL to overcome the pull-down resistor. 4. When a negative supply voltage is used, the supply voltage side of RNA51953 and the GND side are connected to negative supply voltage respectively. Case of Using Reset Signal except Supply Voltage in the RNA51953 Out put RL VCC RNA51953x RNA51953x (a) Reset at ON RESET Logic circuit Out put GND Delay capacitor GND Cd RL VCC (b) Reset at transistor ON RESET Logic circuit GND Delay capacitor GND Cd Control signal Power- supply Power- supply Power- supply Power- supply Figure 2 Case of Using Reset Signal except Supply Voltage in the RNA51953 |
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