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參數資料
| 型號： | ADN2850ACP250 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 數字電位計 |
| 英文描述： | TERM,RING NON-INSUL. |
| 中文描述： | DUAL 250K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 1024 POSITIONS, QCC16 |
| 封裝： | 5 X 5 MM, LFCSP-16 |
| 文件頁數： | 4/18頁 |
| 文件大?。?/td> | 270K |
| 代理商： | ADN2850ACP250 |
PRELIMINARY TECHNICAL DATA
Nonvolatile Memory Programmable Resistors
ADN2850
REV PrH, 13, AUG 2001
4
Timing Diagram
MSB
LSB
CS
SDI
t
1
t
4
t
6
t
3
t
12
t
9
t
7
RDY
t
16
t
2
MSB
LSB OUT
SDO
t
14
t
15
t
17
t
13
t
10
t
10
t
8
CLK
CPOL=1
t
5
CPHA = 1
*
t
11
than 8-bits together as the
CS
line can remain low (useful for daisy chaining). Processing
of a serial command will not take place until
CS
returns high. The CPOL = 0 micro
controller command aligns the incoming data to the positive edge of the clock .
Figure 2A. CPHA=1 Timing Diagram
t
8
MSB IN
LSB
MSB OUT
LSB
CLK
CPOL=0
CS
SDI
SDO
t
1
t
4
t
6
t
3
t
12
t
9
t
7
RDY
t
16
t
2
t
14
t
15
t
17
t
13
t
11
t
11
t
10
t
5
CPHA = 0
*
*
Note: Not defined, but normally MSB of character just received
CS
however this is not strictly SPI compliant. The CPOL = 0 micro controller
command aligns the incoming data to the positive edge of the clock .
Figure 2B. CPHA=0 Timing Diagram
* Note: Not defined, but normally LSB of character previously transmitted. The CPOL=1 micro
controller command aligns the incoming data to the positive edge of the clock.
command aligns the incoming data to the positive edge of the clock.
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