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DS1305E データシートの表示(PDF) - Dallas Semiconductor -> Maxim Integrated
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DS1305E
Serial Alarm Real Time Clock (RTC)
Dallas Semiconductor -> Maxim Integrated
DS1305E Datasheet PDF : 22 Pages
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Configuration 2: Backup Supply is a Rechargeable Battery or Super
Capacitor
DS1305
Configuration 3: Battery Operate Mode
FUNCTION TABLE
Table 3
MODE
CE
SCLK
Disable Reset
L
Input Disabled
Write
H
CPOL=1*
SDI
Input Disabled
Data Bit Latch
SDO
High Z
High Z
Read
CPOL=0
H
CPOL=1
X
Next data bit shift**
CPOL=0
* CPOL is the “Clock Polarity” bit that is set in the control register of the microcontroller.
** SDO remains at High Z until 8 bits of data are ready to be shifted out during a read.
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