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參數(shù)資料
| 型號： | X9268UT24-2.7 |
| 廠商： | Intersil Corporation |
| 英文描述： | Dual Supply/Low Power/256-Tap/2-Wire Bus |
| 中文描述： | 雙電源/低Power/256-Tap/2-Wire巴士 |
| 文件頁數(shù)： | 10/24頁 |
| 文件大小： | 368K |
| 代理商： | X9268UT24-2.7 |
10
FN8172.1
June 21, 2005
DEVICE DESCRIPTION
Instructions
Four of the nine instructions are three bytes in length.
These instructions are:
–
Read Wiper Counter Register
– read the current
wiper position of the selected potentiometer,
–
Write Wiper Counter Register
– change current
wiper position of the selected potentiometer,
–
Read Data Register
– read the contents of the
selected Data Register;
–
Write Data Register
– write a new value to the
selected Data Register.
The basic sequence of the three byte instructions is
illustrated in Figure 4. These three-byte instructions
exchange data between the WCR and one of the Data
Registers. A transfer from a Data Register to a WCR is
essentially a write to a static RAM, with the static RAM
controlling the wiper position. The response of the
wiper to this action will be delayed by t
WRL
. A transfer
from the WCR (current wiper position), to a Data
Register is a write to nonvolatile memory and takes a
minimum of t
WR
to complete. The transfer can occur
between one of the four potentiometers and one of its
associated registers; or it may occur globally, where
the transfer occurs between all potentiometers and
one associated register
Four instructions require a two-byte sequence to
complete. These instructions transfer data between the
host and the X9268; either between the host and one of
the data registers or directly between the host and the
Wiper Counter Register. These instructions are:
–
XFR Data Register to Wiper Counter Register
–
This transfers the contents of one specified Data
Register to the associated Wiper Counter Register.
–
XFR Wiper Counter Register to Data Register
–
This transfers the contents of the specified Wiper
Counter Register to the specified associated Data
Register.
–
Global XFR Data Register to Wiper Counter
Register
– This transfers the contents of all speci-
fied Data Registers to the associated Wiper Counter
Registers.
–
Global XFR Wiper Counter Register to Data
Register
– This transfers the contents of all Wiper
Counter Registers to the specified associated Data
Registers.
INCREMENT/DECREMENT COMMAND
The final command is Increment/Decrement (Figure 5
and 6). The Increment/Decrement command is
different from the other commands. Once the
command is issued and the X9268 has responded
with an acknowledge, the master can clock the
selected wiper up and/or down in one segment steps;
thereby, providing a fine tuning capability to the host.
For each SCL clock pulse (t
HIGH
) while SDA is HIGH,
the selected wiper will move one resistor segment
towards the R
H
terminal. Similarly, for each SCL clock
pulse while SDA is LOW, the selected wiper will move
one resistor segment towards the R
L
terminal.
See Instruction format for more details.
X9268
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| X9268UT24I | Dual Supply/Low Power/256-Tap/2-Wire Bus |
| X9268UT24I-2.7 | Dual Supply/Low Power/256-Tap/2-Wire Bus |
| X9268 | Dual Supply/Low Power/256-Tap/2-Wire Bus |
| X9268TS24I-2.7 | Dual Supply/Low Power/256-Tap/2-Wire Bus |
| X9269TS24IZ | Dual Digitally-Controlled Potentiometers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X9268UT24I | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual Supply/Low Power/256-Tap/2-Wire Bus |
| X9268UT24I-2.7 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual Supply/Low Power/256-Tap/2-Wire Bus |
| X9268UV24 | 功能描述:IC XDCP DUAL 256TAP 50K 24-TSSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 標(biāo)準(zhǔn)包裝:2,500 系列:XDCP™ 接片:256 電阻（歐姆）:100k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 ±300 ppm/°C 存儲器類型:非易失 接口:I²C（設(shè)備位址） 電源電壓:2.7 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
| X9269 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual Digitally-Controlled Potentiometers |
| X9269_07 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual Digitally-Controlled Potentiometers |
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