參數(shù)資料
型號(hào)： R2023T-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, PDSO10
封裝： 4 X 2.90 MM, 1 MM HEIGHT, TSSOP-10
文件頁(yè)數(shù)： 37/50頁(yè)
文件大?。?/td> 512K
代理商： R2023T-E2
R2023K/T
37
32768Hz Oscillation
Power-on reset flag
(PON)
Oscillation halt
sensing flag (XST)
Threshold voltage (2.1V or 1.35V)
VDD
VDD supply voltage
monitor flag (VDET)
Internal initialization
period (1 to 2 sec.)
VDET
←
0
XST
←
1
PON
←
0
VDET
←
0
XST
←
1
PON
←
1
VDET
←
0
XST
←
1
PON
←
0
Internal initialization
period (1 to 2 sec.)
When the PON bit is set to 1 in the control register 2, the DEV, F6 to F0, WALE, DALE, 12 /24, CLEN2 , TEST,
CT2, CT1, CT0, VDSL, VDET, CLEN1 , CTFG, WAFG, and DAFG bits are reset to 0 in the oscillation adjustment
register, the control register 1, and the control register 2. The PON bit is also set to 1 at power-on from 0 volts.
< Considerations in Using Oscillation Halt Sensing Circuit >
Be sure to prevent the oscillation halt sensing circuit from malfunctioning by preventing the following:
1) Instantaneous power-down on the VDD
2) Condensation on the quartz crystal unit
3) On-board noise to the quartz crystal unit
4) Applying to individual pins voltage exceeding their respective maximum ratings
In particular, note that the
XST
bit may fail to be set to 0 in the presence of any applied supply voltage as
illustrated below in such events as backup battery installation. Further, give special considerations to prevent
excessive chattering in the oscillation halt sensing circuit.
VDD
相關(guān)PDF資料
PDF描述
R2025D High precision I2C-Bus Real-Time Clock Module
R2025S High precision I2C-Bus Real-Time Clock Module
R5326Z003B Automatic Mode Shift 2ch 150mA LDO
R5326Z004A Automatic Mode Shift 2ch 150mA LDO
R5326Z004B Automatic Mode Shift 2ch 150mA LDO
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
R2025S 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
R2-0267-02 制造商:Southco 功能描述:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*