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參數(shù)資料
| 型號(hào)： | X9455 |
| 廠商： | Intersil Corporation |
| 元件分類： | 數(shù)字電位計(jì) |
| 英文描述： | Dual Two-wiper Digitally-Controlled (XDCP) Potentiometer |
| 中文描述： | 雙程雙線雨刮器數(shù)字控制（數(shù)字電位器）電位 |
| 文件頁(yè)數(shù)： | 9/18頁(yè) |
| 文件大?。?/td> | 372K |
| 代理商： | X9455 |
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9
FN8202.0
November 10, 2004
Up/Down Interface Operation
The SCL, U/D, CS, DS0 and DS1 inputs control the
movement of the wiper along the resistor array. With CS set
LOW the device is selected and enabled to respond to the
U/D and SCL inputs. HIGH to LOW transitions on SCL will
increment or decrement (depending on the state of the U/D
input) a wiper counter register selected by DS0 and DS1.
The output of this counter is decoded to select one of 256
wiper positions along the resistor array.
The value of the counter is stored in nonvolatile data register
Level 0 of the corresponding WCR whenever CS transitions
HIGH while the SCL and WP inputs are HIGH (See Table 1).
During a “Store” operation bits WCRSel1 and WCRSel0 in
the status register must be both “0”, which is their power up
default value. Other combinations are reserved and must not
be used.
The system may select the X9455, move a wiper, and
deselect the device without having to store the latest wiper
position in nonvolatile memory. After the wiper movement is
performed as described above and once the new position is
reached, the system must keep SCL LOW while taking CS
HIGH. The new wiper position is maintained until changed
by the system or until a power-down/up cycle recalled the
previously stored data.
This procedure allows the system to always power-up to a
preset value stored in nonvolatile memory; then during
system operation minor adjustments could be made. The
adjustments might be based on user preference, system
parameter changes due to temperature drift, etc.
The state of U/D may be changed while CS remains LOW.
This allows the host system to enable the device and then
move the wiper up and down until the proper trim is attained.
The 2-wire interface is disabled while CS remains LOW.
*While in Standby, the 2-wire interface is enabled
TABLE 1. DCP SELECTION FOR UP/DOWN CONTROL
DS1
DS0
SELECTED WIPER
CONTROL REGISTER
0
0
Wiper A of DCP0
1
1
Wiper B of DCP0
1
0
Wiper A of DCP1
0
1
Wiper B of DCP1
TABLE 2. MODE SELECTION FOR UP/DOWN CONTROL
CS
SCL
U/D
MODE
L
H
Wiper Up
L
L
Wiper Down
H
X
Store Wiper Position to nonvolatile
memory if WP pin is high. No store,
return to standby, if WP pin is low.
H
X
X
Standby*
L
X
No Store, Return to Standby
L
H
Wiper Up (not recommended)
L
L
Wiper Down (not recommended)
X9455
相關(guān)PDF資料 |
PDF描述 |
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| X9455TV24-2.7 | Dual Two-wiper Digitally-Controlled (XDCP) Potentiometer |
| X9455TV24I-2.7 | Dual Two-wiper Digitally-Controlled (XDCP) Potentiometer |
| X9455YV24-2.7 | Hook-Up Wire; Conductor Size AWG:24; No. Strands x Strand Size:19 x 36; Jacket Color:Yellow; Approval Bodies:UL; Approval Categories:UL AWM Style 1180; Passes VW-1 Flame Test; Cable/Wire MIL SPEC:MIL-W-16878/5 Type EE RoHS Compliant: Yes |
| X9455UV24-2.7 | Dual Two-wiper Digitally-Controlled (XDCP) Potentiometer |
| X9455UV24I-2.7 | Dual Two-wiper Digitally-Controlled (XDCP) Potentiometer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X9455_06 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual Two-wiper Digitally-Controlled Potentiometer |
| X9455TV24-2.7 | 功能描述:IC DCP DUAL 100K 256TAP 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(chǔ)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) |
| X9455TV24I-2.7 | 功能描述:IC DCP DUAL 100K 256TAP 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(chǔ)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) |
| X9455TV24IZ-2.7 | 功能描述:IC XDCP DUAL 256TAP 100K 24TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 接片:32 電阻（歐姆）:50k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 50 ppm/°C 存儲(chǔ)器類型:易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細(xì)型，TSOT-23-6 供應(yīng)商設(shè)備封裝:TSOT-23-6 包裝:帶卷 (TR) |
| X9455US24I-2.7 | 功能描述:IC XDCP DUAL 256TAP 50K 24-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 接片:32 電阻（歐姆）:50k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 50 ppm/°C 存儲(chǔ)器類型:易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細(xì)型，TSOT-23-6 供應(yīng)商設(shè)備封裝:TSOT-23-6 包裝:帶卷 (TR) |
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