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參數(shù)資料
| 型號： | X9421YV14T1 |
| 廠商： | Intersil |
| 文件頁數(shù)： | 18/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC XDCP SGL 64-TAP 2.5K 14-TSSOP |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 系列： | XDCP™ |
| 接片： | 64 |
| 電阻（歐姆）： | 2.5k |
| 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： | 5 線 SPI（芯片選擇，設(shè)備位址） |
| 電源電壓： | 4.5 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) |
7
FN8196.4
January 14, 2009
Two of the eight 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
instruction transfers the contents of one specified Data
Register to the Wiper Counter Register.
XFR Wiper Counter Register to Data Register—This
instruction transfers the contents of the Wiper Counter
Register to the specified associated Data Register.
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
the potentiometer and one of its associated registers.
Five instructions require a three-byte sequence to complete.
These instructions transfer data between the host and the
X9421; either between the host and one of the Data
Registers or directly between the host and the WCR. These
instructions are:
Read Wiper Counter Register—read the current wiper
position of the pot,
Write Wiper Counter Register—change current wiper
position of the 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 5 and
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 wiper up and/or down in one resistor segment step;
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 Figure 7
and 8.
0101
110A0
I3
I2
I1
I0
R1
R0
0
SCK
SI
CS
FIGURE 4. TWO-BYTE INSTRUCTION SEQUENCE
0
101
0A0
I3
I2
I1
I0
R1 R0
0
SCL
SI
0
D5 D4
D3 D2
D1 D0
CS
11
FIGURE 5. THREE-BYTE INSTRUCTION SEQUENCE (WRITE)
X9421
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| X9421YV14Z | 功能描述:IC XDCP SGL 64-TAP 2.5K 14-TSSOP 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) |
| X9421YV14Z-2.7 | 功能描述:IC XDCP SGL 64-TAP 2.5K 14-TSSOP 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) |
| X9421YV14Z-2.7T1 | 功能描述:IC XDCP SGL 64-TAP 2.5K 14-TSSOP 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) |
| X9421YV14ZT1 | 功能描述:IC XDCP SGL 64-TAP 2.5K 14-TSSOP 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) |
| X9421YV-2.7 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Single Digitally Controlled (XDCP) Potentiometer |
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