the operation. The next two bits (R
參數(shù)資料
型號: X9250US24IZ-2.7T1
廠商: Intersil
文件頁數(shù): 17/20頁
文件大?。?/td> 0K
描述: IC XDCP QUAD 256TP 50K 24-SOIC
產(chǎn)品培訓(xùn)模塊: Solutions for Industrial Control Applications
標(biāo)準(zhǔn)包裝: 1,000
系列: XDCP™
接片: 256
電阻(歐姆): 50k
電路數(shù): 4
溫度系數(shù): 標(biāo)準(zhǔn)值 ±300 ppm/°C
存儲器類型: 非易失
接口: 6 線 SPI(芯片選擇,設(shè)備位址)
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: 24-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 24-SOIC
包裝: 帶卷 (TR)
6
FN8165.3
August 29, 2006
The four high order bits of the instruction byte specify
the operation. The next two bits (R1 and R0) select
one of the four registers that is to be acted upon when
a register oriented instruction is issued. The last two
bits (P1 and P0) selects which one of the four
potentiometers is to be affected by the instruction.
Four of the ten instructions are two bytes in length and
end with the transmission of the instruction byte.
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 Regiter—
This transfers the contents of all specified Data Reg-
isters to the associated Wiper Counter Registers.
– Global XFR Wiper Counter Register to Data Regiter—
This transfers the contents of all Wiper Counter
Registers to the specified associated Data Regis-
ters.
The basic sequence of the two byte instructions is
illustrated in Figure 4. These two-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 tWRL. A transfer
from the WCR (current wiper position), to a Data
Register is a write to nonvolatile memory and takes a
minimum of tWR 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.
Five instructions require a three-byte sequence to
complete. These instructions transfer data between
the host and the X9250; either between the host and
one of the data registers or directly between the host
and the Wiper Counter Register. These instructions
are:
– Read Wiper Counter Register—read the current
wiper position of the selected pot,
– Write Wiper Counter Register—change current
wiper position of the selected pot,
– Read Data Register—read the contents of the
selected data register;
– Write Data Register—write a new value to the
selected data register.
– Read Status—This command returns the contents
of the WIP bit which indicates if the internal write
cycle is in progress.
The sequence of these operations is shown in Figure
The final command is Increment/Decrement. It is
different from the other commands, because it’s length
is indeterminate. Once the command is issued, the
master can clock the selected wiper up and/or down in
one resistor segment steps; thereby, providing a fine
tuning capability to the host. For each SCK clock pulse
(tHIGH) while SI is HIGH, the selected wiper will move
one resistor segment towards the VH/RH terminal.
Similarly, for each SCK clock pulse while SI is LOW,
the selected wiper will move one resistor segment
towards the VL/RL terminal. A detailed illustration of the
sequence and timing for this operation are shown in
X9250
相關(guān)PDF資料
PDF描述
VI-27P-MX-B1 CONVERTER MOD DC/DC 13.8V 75W
X9259US24IZ-2.7T1 IC XDCP QUAD 256TP 50K 24-SOIC
MS3451L28-9P CONN RCPT 12POS CBL MNT W/PINS
VI-21X-MW CONVERTER MOD DC/DC 5.2V 100W
VE-BWY-MX-F1 CONVERTER MOD DC/DC 3.3V 49.5W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
X9250US24T1 功能描述:IC XDCP QUAD 256-TAP 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™ 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)
X9250US24Z 功能描述:IC XDCP QUAD 256TP 50K 24-SOIC RoHS:是 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:3,300 系列:WiperLock™ 接片:257 電阻(歐姆):100k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 150 ppm/°C 存儲器類型:易失 接口:3 線 SPI(芯片選擇) 電源電壓:1.8 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-VDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-DFN-EP(3x3) 包裝:帶卷 (TR)
X9250US24Z-2.7 功能描述:IC XDCP QUAD 256TP 50K 24-SOIC 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:256 電阻(歐姆):100k 電路數(shù):2 溫度系數(shù):標(biāo)準(zhǔn)值 35 ppm/°C 存儲器類型:易失 接口:6 線串行(芯片選擇,遞增,增/減) 電源電壓:2.6 V ~ 5.5 V 工作溫度:-40°C ~ 125°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)
X9250US24Z-2.7T1 功能描述:IC XDCP QUAD 256TP 50K 24-SOIC 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:256 電阻(歐姆):100k 電路數(shù):2 溫度系數(shù):標(biāo)準(zhǔn)值 35 ppm/°C 存儲器類型:易失 接口:6 線串行(芯片選擇,遞增,增/減) 電源電壓:2.6 V ~ 5.5 V 工作溫度:-40°C ~ 125°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)
X9250US24ZT1 功能描述:IC XDCP QUAD 256TP 50K 24-SOIC 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:256 電阻(歐姆):100k 電路數(shù):2 溫度系數(shù):標(biāo)準(zhǔn)值 35 ppm/°C 存儲器類型:易失 接口:6 線串行(芯片選擇,遞增,增/減) 電源電壓:2.6 V ~ 5.5 V 工作溫度:-40°C ~ 125°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)