参数资料
| 型号： | X93255UV14IT1 |
| 厂商： | Intersil |
| 文件页数： | 5/7页 |
| 文件大小： | 0K |
| 描述： | IC XDCP DUAL 32-TAP 50K 14-TSSOP |
| 标准包装： | 2,500 |
| 系列： | XDCP™ |
| 接片： | 32 |
| 电阻（欧姆）： | 50k |
| 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： | 4.5 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： | 带卷 (TR) |
5
FN8187.1
February 4, 2008
AC Timing
Power-up and Power-down Requirements
There are no restrictions on the power-up or power-down
conditions of VCC and the voltages applied to the
potentiometer pins provided that VCC is always more
positive than or equal to VH and VL, i.e., VCC ≥ VH,VL. The
VCC ramp rate specification is always in effect.
Pin Descriptions
RH and RL
The RH and RL pins of the X93255 are equivalent to the end
terminals of a variable resistor. The minimum voltage is VSS
and the maximum is VCC. The terminology of RH and RL
references the relative position of the terminal in relation to
wiper movement direction selected by the U/D input per
potentiometer.
Up/Down (U/D)
The U/D input controls the direction of a single
potentiometer’s wiper movement and whether the counter is
incremented or decremented.
Increment (INC)
The INC input is negative-edge triggered. Toggling INC will
move the wiper and either increment or decrement the
pertaining potentiometer’s counter in the direction indicated
by the logic level on the pertaining potentiometer’s U/D
input.
Chip Select (CS)
A potentiometer is selected when the pertaining CS input is
LOW. Its current counter value is stored in nonvolatile
memory when the pertaining CS is returned HIGH while the
pertaining INC input is also HIGH. After the store operation
is complete, the affected potentiometer will be placed in the
low power standby mode until the potentiometer is selected
once again.
Principles of Operation
There are multiple sections for each potentiometer in the
X93255: an input control, a counter and decode section; the
nonvolatile memory; and a resistor array. Each 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.
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. The wiper is connected
to the RL terminal, forming a variable resistor from RH to RL.
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 up to 10s. 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.
CS
INC
U/D
tCI
tIL
tIH
tCYC
tID
tDI
tIC
tCPH
tF
tR
10%
90%
(STORE)
Note: CS, INC, U/D, RH and RL are used to refer
to either CS1 or CS2, etc.
X93255
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相关代理商/技术参数 |
参数描述 |
|---|---|
| X93256 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Dual Digitally Controlled Potentiometers(XDCPs?) |
| X93256_06 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Dual Digitally Controlled Potentiometers |
| X93256_08 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Dual Digitally Controlled Potentiometers(XDCPs?) |
| X93256UV14I-2.7 | 功能描述:IC XDCP DUAL 32-TAP 50K 14-TSSOP 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) |
| X93256UV14I-2.7T1 | 功能描述:IC XDCP DUAL 32-TAP 50K 14-TSSOP 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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