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HA16117FPC Datasheet(PDF) 2 Page - Renesas Technology Corp |
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HA16117FPC Datasheet(HTML) 2 Page - Renesas Technology Corp |
2 / 31 page HA16117F Series Rev.3.00 Jun 15, 2005 page 2 of 30 Pin Arrangement 8 7 6 5 VCC P-RUN CF CR 1 2 3 4 Tadj ACC GND (Top view) RES Pin Description Pin No. Symbol Function 1 VCC Power supply voltage input 2 P-RUN Watchdog timer (WDT) input 3 CF Connected capacitor CF determines WDT filter characteristic (normal frequency range) 4 CR Connected capacitor CR determines tON for power-on reset and tOFF, tRH, and tRL for auto-reset 5 RES Reset signal output from WDT and voltage supervision circuits 6 GND Ground 7 ACC WDT on/off control input (on when ACC is low) 8 Tadj * For adjusting tRH and tOFF (divide VCC to get the adjustment voltage) Note: The low-voltage threshold cannot be modified by changing the external resistors connected to the Tadj pin. |
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