参数资料
| 型号： | X93256WV14I-2.7 |
| 厂商： | Intersil |
| 文件页数： | 6/7页 |
| 文件大小： | 0K |
| 描述： | IC XDCP DUAL 32TAP 12.5K 14TSSOP |
| 标准包装： | 95 |
| 系列： | XDCP™ |
| 接片： | 32 |
| 电阻（欧姆）： | 12.5k |
| 电路数： | 2 |
| 温度系数： | 标准值 ±35 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | 6 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： | 14-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 14-TSSOP |
| 包装： | 管件 |
6
FN8188.2
February 1, 2008
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.
Under the proper conditions, the contents of the counter can
be stored in nonvolatile memory and retained for future use.
Each 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.
Each 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 tIW (INC to VW change). The
2-terminal resistance value for the device can temporarily
change by a significant amount if the wiper is moved several
positions.
When the device is powered-down, the last wiper position
stored will be maintained in the nonvolatile memory for each
potentiometer. When power is restored, the contents of the
memory are recalled and each wiper is set to the value last
stored.
Instructions and Programming
The INC, U/D and CS inputs control the movement of the
pertaining wiper along the resistor array. With CS set LOW
the pertaining potentiometer is selected and enabled to
respond to the U/D and INC inputs. HIGH to LOW transitions
on INC will increment or decrement (depending on the state
of the U/D input) a 5-bit counter. The output of this counter is
decoded to select one of thirty two wiper positions along the
resistive array.
The value of the counter is stored in nonvolatile memory
whenever each CS transitions HIGH while the pertaining
INC input is also HIGH. In order to avoid an accidental store
during power-up, each CS must go HIGH with VCC during
initial power-up. When left open, each CS pin is internally
pulled up to VCC by an internal 30k resistor.
The system may select the X93256, move any wiper and
deselect the device without having to store the latest wiper
position in nonvolatile memory. After the wiper movement is
performed as previously described and once the new
position is reached, the system must keep INC LOW while
taking CS HIGH. The new wiper position will be maintained
until changed by the system or until a power-up/down cycle
recalled the previously stored data. In order to recall the
stored position of the wiper on power-up, the CS pin must be
held HIGH.
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, or other system
trim requirements.
The state of U/D may be changed while CS remains LOW.
This allows the host system to enable the device and then
move each wiper up and down until the proper trim is
attained.
Symbol Table
Mode Selection
CS
INC
U/D
MODE
L
H
Wiper Up
L
Wiper Down
H
X
Store Wiper Position
H
X
Standby Current
L
X
No Store, Return to Standby
L
H
Wiper Up (not recommended)
L
Wiper Down (not recommended)
WAVEFORM
INPUTS
OUTPUTS
Must be
steady
Will be
steady
May change
from Low to
High
Will change
from Low to
High
May change
from High to
Low
Will change
from High to
Low
Don’t Care:
Changes
Allowed
Changing:
State Not
Known
N/A
Center Line
is High
Impedance
X93256
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相关代理商/技术参数 |
参数描述 |
|---|---|
| X93256WV14IZ-2.7 | 功能描述:IC XDCP DUAL 32TAP 12.5K 14TSSOP 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) |
| X93256WV14IZ-2.7T1 | 功能描述:IC XDCP DUAL 32TAP 12.5K 14TSSOP 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) |
| X93RP-2 | 功能描述:消费电池与相机电池 C 9185mAh 2 PK Titanium Alkaline RoHS:否 制造商:FDK Batteries 电池大小:CR1/3N 输出电压:3 V 容量:160 mAh 化学性质:Lithium 端接类型:Pressure Contacts 可再充电/不可再充电:Non-Rechargeable |
| X93RP-4 | 功能描述:消费电池与相机电池 NOT AVAILABLE THROUGH MOUSER RoHS:否 制造商:FDK Batteries 电池大小:CR1/3N 输出电压:3 V 容量:160 mAh 化学性质:Lithium 端接类型:Pressure Contacts 可再充电/不可再充电:Non-Rechargeable |
| X9400 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Quad Digitally Controlled Potentiometers |
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