参数资料
| 型号： | X9421YP18I |
| 厂商： | Intersil |
| 文件页数： | 18/20页 |
| 文件大小： | 0K |
| 描述： | IC XDCP SGL 64-TAP 2.5K 18-DIP |
| 标准包装： | 25 |
| 系列： | XDCP™ |
| 接片： | 64 |
| 电阻（欧姆）： | 2.5k |
| 电路数： | 1 |
| 温度系数： | 标准值 ±300 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | 5 线 SPI（芯片选择，设备位址） |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 18-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 18-PDIP |
| 包装： | 管件 |
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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相关代理商/技术参数 |
参数描述 |
|---|---|
| X9421YS | 制造商:XICOR 制造商全称:Xicor Inc. 功能描述:Single Digitally Controlled (XDCP) Potentiometer |
| X9421YS16 | 功能描述:IC XDCP SGL 64-TAP 2.5K 16-SOIC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:XDCP™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 接片:32 电阻（欧姆）:50k 电路数:1 温度系数:标准值 50 ppm/°C 存储器类型:易失 接口:3 线串行（芯片选择，递增，增/减） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 细型，TSOT-23-6 供应商设备封装:TSOT-23-6 包装:带卷 (TR) |
| X9421YS16-2.7 | 功能描述:IC XDCP SGL 64-TAP 2.5K 16-SOIC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:XDCP™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 接片:32 电阻（欧姆）:50k 电路数:1 温度系数:标准值 50 ppm/°C 存储器类型:易失 接口:3 线串行（芯片选择，递增，增/减） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 细型，TSOT-23-6 供应商设备封装:TSOT-23-6 包装:带卷 (TR) |
| X9421YS16-2.7T1 | 功能描述:IC XDCP SGL 64-TAP 2.5K 16-SOIC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:XDCP™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 接片:32 电阻（欧姆）:50k 电路数:1 温度系数:标准值 50 ppm/°C 存储器类型:易失 接口:3 线串行（芯片选择，递增，增/减） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 细型，TSOT-23-6 供应商设备封装:TSOT-23-6 包装:带卷 (TR) |
| X9421YS16I | 功能描述:IC XDCP SGL 64-TAP 2.5K 16-SOIC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:XDCP™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 接片:32 电阻（欧姆）:50k 电路数:1 温度系数:标准值 50 ppm/°C 存储器类型:易失 接口:3 线串行（芯片选择，递增，增/减） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 细型，TSOT-23-6 供应商设备封装:TSOT-23-6 包装:带卷 (TR) |
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