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參數(shù)資料
| 型號(hào)： | X9258TV24Z-2.7 |
| 廠商： | INTERSIL CORP |
| 元件分類： | 數(shù)字電位計(jì) |
| 英文描述： | Quad Digital Controlled Potentiometers |
| 中文描述： | QUAD 100K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO24 |
| 封裝： | 4.40 MM, ROHS COMPLIANT, TSSOP-24 |
| 文件頁數(shù)： | 9/20頁 |
| 文件大?。?/td> | 334K |
| 代理商： | X9258TV24Z-2.7 |
9
FN8168.4
August 30, 2006
The WCR is a volatile register; that is, its contents are
lost when the X9258 is powered-down. Although the
register is automatically loaded with the value in R0
upon power-up, it should be noted this may be
different from the value present at power-down.
Data Registers
Each potentiometer has four nonvolatile Data
Registers. These can be read or written directly by the
host and data can be transferred between any of the
four Data Registers and the WCR. It should be noted
all operations changing data in one of these registers
is a nonvolatile operation and will take a maximum of
10ms.
If the application does not require storage of multiple
settings for the potentiometer, these registers can be
used as regular memory locations that could possibly
store system parameters or user preference data.
REGISTER DESCRIPTIONS
Data Registers, (8-Bit), Nonvolatile
WP7
WP6
WP5
NV
NV
NV
(MSB)
Four 8-bit Data Registers for each DCP. (sixteen 8-bit
registers in total).
– {D7~D0}: These bits are for general purpose not
volatile data storage or for storage of up to four
different wiper values. The contents of Data Register
0 are automatically moved to the wiper counter
register on power-up.
Wiper Counter Register, (8-Bit), Volatile
WP7
WP6
WP5
Instruction Format
Notes:
(1) “MACK”/”SACK”: stands for the acknowledge sent by the master/slave.
(2) “A3 ~ A0”: stands for the device addresses sent by the master.
(3) “X”: indicates that it is a “0” for testing purpose but physically it is a “don’t care” condition.
(4) “I”: stands for the increment operation, SDA held high during active SCL phase (high).
(5) “D”: stands for the decrement operation, SDA held low during active SCL phase (high).
Read Wiper Counter Register (WCR)
Write Wiper Counter Register (WCR)
Read Data Register (DR)
WP4
NV
WP3
NV
WP2
NV
WP1
NV
WP0
NV
(LSB)
WP4
WP3
WP2
WP1
WP0
S
T
A
R
T
device type
identifier
device
addresses
S
A
C
K
instruction
opcode
WCR
addresses
S
A
C
K
wiper position
(sent by slave on SDA)
M
A
C
K
S
T
O
P
0
1
0
1
A
3
A
2
A
1
A
0
1
0
0
1
0
0
P
1
P
0
W
P
7
W
P
6
W
P
5
W
P
4
W
P
3
W
P
2
W
P
1
W
P
0
S
T
A
R
T
device type
identifier
device
addresses
S
A
C
K
instruction
opcode
WCR
addresses
S
A
C
K
Data Byte
(sent by master on SDA)
S
A
C
K
S
T
O
P
0
1
0
1
A
3
A
2
A
1
A
0
1
0
1
0
0
0
P
1
P
0
W
P
7
W
P
6
W
P
5
W
P
4
W
P
3
W
P
2
W
P
1
W
P
0
S
T
A
R
T
device type
identifier
device
addresses
S
A
C
K
instruction
opcode
DR and WCR
addresses
S
A
C
K
Data Byte
(sent by slave on SDA)
M
A
C
K
S
T
O
P
0
1
0
1
A
3
A
2
A
1
A
0
1
0
1
1
R
1
R
0
P
1
P
0
W
P
7
W
P
6
W
P
5
W
P
4
W
P
3
W
P
2
W
P
1
W
P
0
X9258
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X9258TZ24 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DIGITAL POTENTIOMETER|CMOS|BGA|24PIN|PLASTIC |
| X9258TZ24-2.7 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DIGITAL POTENTIOMETER|CMOS|BGA|24PIN|PLASTIC |
| X9258TZ24I | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DIGITAL POTENTIOMETER|CMOS|BGA|24PIN|PLASTIC |
| X9258TZ24I-2.7 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DIGITAL POTENTIOMETER|CMOS|BGA|24PIN|PLASTIC |
| X9258UB24 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Quad Digital Controlled Potentiometers (XDCP) |
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