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參數(shù)資料
| 型號(hào)： | R2023K-E2 |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | XO, clock |
| 英文描述： | 2-wire Serial Interface Real Time Clock IC |
| 中文描述： | REAL TIME CLOCK, QCC12 |
| 封裝： | 2 X 2 MM, 1 MM HEIGHT, FFP-12 |
| 文件頁數(shù)： | 44/50頁 |
| 文件大小： | 512K |
| 代理商： | R2023K-E2 |
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R2023K/T
Connection of
INTRA
or
INTRB
Pin
44
The INTRA or INTRB 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 5.5v regardless of supply voltage.
System power supply
VDD
OSCIN
OSCOUT
INTRA or INTRB
*1)
32768Hz
B
A
Backup power supply
VSS
Connection of 32KOUT Pin
As the 32KOUT pin is CMOS output, the supply voltage of the R2023K/T and any devices to be connected should
be the same. When the device is powered down, the 32KOUT output pin should be disabled.
When the CLKC pin is connected to the system power supply through the pull-up resistor, the pull-up resistor
should be 0
to 10k
, and the 32KOUT pin should be connect to the host device through the resistor (approx.
10k
)
VDD
CLKC
VSS
Back-up Power Supply
CPU Power Supply
32KOUT
R3111
XXXXC
VDD
CPU
VSS
Back-up Power supply
CPU Power Supply
Approx.10K
32KOUT
0 to 10K
CLKC
*1) Depending on whether the
INTRB pin is 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.
INTRA
or
相關(guān)PDF資料 |
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| R2023T | 2-wire Serial Interface Real Time Clock IC |
| R2023T-E2 | 2-wire Serial Interface Real Time Clock IC |
| R2025D | High precision I2C-Bus Real-Time Clock Module |
| R2025S | High precision I2C-Bus Real-Time Clock Module |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| R2023T | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2-wire Serial Interface Real Time Clock IC |
| R2023T-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2-wire Serial Interface Real Time Clock IC |
| R2-0257-02 | 制造商:Southco 功能描述: |
| R2-0259-02 | 制造商:Southco 功能描述: |
| R2025D | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:High precision I2C-Bus Real-Time Clock Module |
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