參數(shù)資料
型號(hào)： RS5C348B-E2
廠商： RICOH COMPANY LTD
元件分類： XO, clock
英文描述： Real-Time Clock
中文描述： 0 TIMER(S), REAL TIME CLOCK, PDSO10
封裝： 6.40 X 3.50 MM, 1.25 MM HEIGHT, 0.5 MM PITCH, SSOP-10
文件頁(yè)數(shù)： 43/53頁(yè)
文件大?。?/td> 452K
代理商： RS5C348B-E2
R
×
5C348A/B
40
6.2 Connection of INTR Pin
The INTR pin follows the N-channel open drain output logic and contains no protective diode on the power supply
side. As such, it can be connected to a pull-up resistor of up to 5.5 volts regardless of supply voltage.
6.3 Connection of 32KOUT Pin
The 32KOUT pin follows the Nch. open drain output and contains no protective diode on the power supply side. As
such, it can be connected to a device with a supply voltage of up to 5.5 volts regardless of supply voltage, provided
that such connection involves considerations for the supply current requirements of a pull-up resistor, which can be
roughly calculated by the following equation:
I = 0.5
×
(V
DD
or V
CC
) / Rp
System power supply
R
×
5C348A/B
32.768kHz
A
B
OSCIN
OSCOUT
V
DD
V
SS
INTR
Backup power supply
*
1
System power supply (Vcc)
R
×
5C348A/B
32.768kHz
A
B
OSCIN
OSCOUT
V
DD
V
SS
32KOUT
Backup power supply (V
DD
)
Rp
*
1
*
1) Depending on whether the INTR pin is to be used during
battery backup, it should be connected to a pull-up resistor at
the following different positions:
1) Position A in the left diagram when it is not to be used during
battery backup.
2) Position B in the left diagram when it is to be used during
battery backup.
*
1) Depending on whether the 32KOUT pin is to be used during
battery backup, it should be connected to a pull-up resistor at
the following different positions:
1) Position A in the left diagram when it is not to be used during
battery backup.
2) Position B in the left diagram when it is to be used during
battery backup.
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參數(shù)描述
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RS5C373A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Real-Time Clock
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