参数资料
| 型号： | ISL90462UIH627Z-TK |
| 厂商： | Intersil |
| 文件页数： | 5/7页 |
| 文件大小： | 0K |
| 描述： | IC XDCP 32-TAP 50KOHM SOT23-6 |
| 标准包装： | 1,000 |
| 系列： | XDCP™ |
| 接片： | 32 |
| 电阻（欧姆）： | 50k |
| 电路数： | 1 |
| 温度系数： | 标准值 ±35 ppm/°C |
| 存储器类型： | 易失 |
| 接口： | 2 线串行（芯片选择，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 |
| 供应商设备封装： | SOT-23-6 |
| 包装： | 带卷 (TR) |
5
FN8230.3
October 7, 2005
Pin Descriptions
RH and RW
The ISL90462 contains a digital potentiometer with one
terminal tied to the ground pin (GND) of the device. The RH
pin is the other potentiometer terminal, and the RW pin is the
wiper terminal. The position of the wiper is controlled by the
CS- and U/D- inputs, with a movement "up" connecting the
wiper closer to the RH pin, and movement "down"
connection the wiper closer to the GND pin.
Up/Down (U/D)
The U/D input controls the direction of the wiper movement
and whether the counter is incremented or decremented.
Chip Select (CS)
The device is selected when the CS input is LOW. The
current counter value is stored in volatile memory when CS
is returned HIGH. When CS is high, the device is placed in
low power standby mode.
Principles of Operation
There are two sections of the ISL90462: the input control,
counter and decode section; and the resistor array. The input
control section operates just like an up/down counter. The
output of this counter is decoded to turn on a single
electronic switch connecting a point on the resistor array to
the wiper output. The resistor array is comprised of 31
individual resistors connected in series. At either end of the
array and between each resistor is an electronic switch that
transfers the connection at that point to the wiper. The RH
and RW terminals are uncommitted, and can for a variable
voltage divider if RH is connected to a voltage source.
The direction of the wiper movement is defined when the
device is selected. If during CS transition from High to Low
the U/D input is LOW, the wiper will move down on each
rising edge of U/D toggling. Similarly, the wiper will move up
on each rising edge of U/D toggling if, during CS transition
from High to Low, the U/D input is High.
The wiper, when at either fixed terminal, acts like its
mechanical equivalent and does not move beyond the last
position. That is, the counter does not wrap around when
clocked to either extreme.
If the wiper is moved several positions, multiple taps are
connected to the wiper for tSETTLE (U/D to RW change).
The 2-terminal resistance value for the device can
temporarily change by a significant amount if the wiper is
moved several positions.
CS
U/D
RW
tCU
tCI
tIL
tIH
tIC
tSETTLE
FIGURE 2. SERIAL INTERFACE TIMING DIAGRAM DECREMENT
ISL90462
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL90462WIE627-TK | 功能描述:IC XDCP 32-TAP 10KOHM SC70-6 RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:XDCP™ 标准包装:2,500 系列:XDCP™ 接片:256 电阻（欧姆）:100k 电路数:1 温度系数:标准值 ±300 ppm/°C 存储器类型:非易失 接口:I²C（设备位址） 电源电压:2.7 V ~ 5.5 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) |
| ISL90462WIE627Z-TK | 功能描述:IC XDCP 32-TAP 10KOHM SC70-6 RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:XDCP™ 标准包装:3,000 系列:DPP 接片:32 电阻（欧姆）:10k 电路数:1 温度系数:标准值 300 ppm/°C 存储器类型:非易失 接口:3 线串行（芯片选择，递增，增/减） 电源电压:2.5 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WFDFN 裸露焊盘 供应商设备封装:8-TDFN（2x3） 包装:带卷 (TR) |
| ISL90462WIH627-TK | 功能描述:IC XDCP 32-TAP 10KOHM SOT23-6 RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:XDCP™ 标准包装:2,500 系列:XDCP™ 接片:256 电阻（欧姆）:100k 电路数:1 温度系数:标准值 ±300 ppm/°C 存储器类型:非易失 接口:I²C（设备位址） 电源电压:2.7 V ~ 5.5 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) |
| ISL90462WIH627Z-TK | 功能描述:IC XDCP 32-TAP 10KOHM SOT23-6 RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:XDCP™ 标准包装:3,000 系列:DPP 接片:32 电阻（欧姆）:10k 电路数:1 温度系数:标准值 300 ppm/°C 存储器类型:非易失 接口:3 线串行（芯片选择，递增，增/减） 电源电压:2.5 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WFDFN 裸露焊盘 供应商设备封装:8-TDFN（2x3） 包装:带卷 (TR) |
| ISL90726 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Digitally Controlled Potentiometer (XDCP) |
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