參數(shù)資料
型號(hào)： X9401WS24-2.7
元件分類： 數(shù)字電位計(jì)
英文描述： QUAD 10K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 64 POSITIONS, PDSO24
封裝： PLASTIC, SOIC-24
文件頁數(shù)： 19/21頁
文件大?。?/td> 176K
代理商： X9401WS24-2.7
X9401
– Preliminary Information
Characteristics subject to change without notice.
7 of 21
REV 1.9 4/13/04
www.xicor.com
Figure 7. Increment/Decrement Timing Limits
Table 1. Instruction Set
Instruction
Instruction Set
Operation
I3 I2 I1 I0 R1 R0 P1 P0
Read Wiper Counter Register
1
0
1
0
P1 P0 Read the contents of the Wiper Counter Register
pointed to by P1-P0
Write Wiper Counter Register
1
0
1
0
P1 P0 Write new value to the Wiper Counter Register
pointed to by P1-P0
Read Data Register
1
0
1
R1 R0 P1 P0 Read the contents of the Data Register pointed to
by P1-P0 and R1–R0
Write Data Register
1
0
R1 R0 P1 P0 Write new value to the Data Register pointed to by
P1-P0 and R1–R0
XFR Data Register to Wiper
Counter Register
11
0
1
R1 R0 P1 P0 Transfer the contents of the Data Register pointed
to by R1–R0 to the Wiper Counter Register pointed
to by P1-P0
XFR Wiper Counter Register
to Data Register
11
1
0
R1 R0 P1 P0 Transfer the contents of the Wiper Counter Register
pointed to by P1-P0 to the Register pointed to by
R1–R0
Global XFR Data Register to
Wiper Counter Register
00
0
1
R1 R0
0
Transfer the contents of the Data Registers pointed
to by R1–R0 of all four pots to their respective Wiper
Counter Register
Global XFR Wiper Counter
Register to Data Register
10
0
R1 R0
0
Transfer the contents of all Wiper Counter Regis-
ters to their respective data Registers pointed to by
R1–R0 of all four pots
Increment/Decrement Wiper
Counter Register
00
1
0
P1 P0 Enable Increment/decrement of the Wiper Counter
Register pointed to by P1-P0
Read Status (WIP bit)
0
1
0
1
0
1
Read the status of the internal write cycle, by
checking the WIP bit.
SCK
SI
VW/RW
INC/DEC CMD Issued
tWRID
Voltage Out
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