參數(shù)資料
型號(hào): DS1305E
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: Timer or RTC
英文描述: 0 TIMER(S), REAL TIME CLOCK, PDSO20
封裝: 0.173 INCH, TSSOP-20
文件頁數(shù): 6/22頁
文件大小: 309K
代理商: DS1305E
DS1305
14 of 22
3-WIRE INTERFACE
The 3-wire interface mode operates similarly to the SPI mode. However, in 3-wire mode there is one I/O
instead of separate data in and data out signals. The 3-wire interface consists of the I/O (SDI and SDO
pins tied together), CE, and SCLK pins. In 3-wire mode, each byte is shifted in LSB first unlike SPI mode
where each byte is shifted in MSB first.
As is the case with the SPI mode, an address byte is written to the device followed by a single data byte
or multiple data bytes. Figure 9 illustrates a read and write cycle. In 3-wire mode, data is input on the
rising edge of SCLK and output on the falling edge of SCLK.
Figure 9. 3-WIRE SINGLE-BYTE TRANSFER
NOTE: IN BURST MODE, CE IS KEPT HIGH AND ADDITIONAL SCLK CYCLES ARE SENT UNTIL THE END OF THE BURST.
*
I/O IS SDI AND SDO TIED TOGETHER.
A0
A1
A2
A3
A4
A5
A6
1
CE
SCLK
I/O*
D0
D1
D2
D3
D4
D5
D6 D7
SINGLE-BYTE WRITE
D0
D1
D2
D3
D4
D5
D6
D7
A0
A1
A2
A3
A4
A5 A6
0
I/O*
CE
SCLK
SINGLE-BYTE READ
SERMODE = GND
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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DS1305E/TR 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Serial Alarm Real-Time Clock