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SH7708 Fiches technique(PDF) 339 Page - Renesas Technology Corp

No de pièce SH7708
Description  SuperH??RISC engine
PDF  633 Pages
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Fabricant  RENESAS [Renesas Technology Corp]
Site Internet  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7708 Fiches technique(HTML) 339 Page - Renesas Technology Corp

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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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