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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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SH7708 데이터시트(PDF) 339 Page - Renesas Technology Corp |
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SH7708 데이터시트(HTML) 339 Page - Renesas Technology Corp |
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339 / 633 page  321 12.1.3 Pin Configuration Table 12.1 shows the RTC pin configuration. Table 12.1 RTC Pin Configuration Pin Abbreviation I/O Description RTC oscillator crystal pin EXTAL2 I Connects crystal to RTC oscillator RTC oscillator crystal pin XTAL2 O Connects crystal to RTC oscillator Clock input/clock output TCLK I/O External clock input pin/input capture control input pin/realtime clock (RTC) output pin (shared by TMU) Dedicated power-supply pin for RTC Vcc (RTC) — Dedicated power-supply pin for RTC* Dedicated GND pin for RTC Vss (RTC) — Dedicated GND pin for RTC* Note: * With the SH7708S and SH7708R, except in hardware standby mode, all V CC and VSS pins should be connected to the system power supply (power should be supplied constantly). In hardware standby mode, power should be supplied at least to V CC (RTC) and VSS (RTC). If power is not supplied to V CC and VSS pins other than VCC (RTC) and VSS (RTC), hold the CA pin low. With the SH7708, it is not possible to supply power only to the RTC power supply. |
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