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參數(shù)資料
| 型號(hào)： | ISL95710UIU10Z-T |
| 廠商： | INTERSIL CORP |
| 元件分類(lèi)： | 數(shù)字電位計(jì) |
| 英文描述： | Hook-Up Wire; Conductor Size AWG:18; No. Strands x Strand Size:19 x 30; Jacket Color:Light Blue; Approval Bodies:UL; Approval Categories:UL AWM Style 1180; Passes VW-1 Flame Test; Cable/Wire MIL SPEC:MIL-W-16878/5 Type EE RoHS Compliant: Yes |
| 中文描述： | 50K DIGITAL POTENTIOMETER, INCREMENT/DECREMENT CONTROL INTERFACE, 128 POSITIONS, PDSO10 |
| 封裝： | ROHS COMPLIANT, PLASTIC, MO-187BA, MSOP-10 |
| 文件頁(yè)數(shù)： | 6/8頁(yè) |
| 文件大?。?/td> | 238K |
| 代理商： | ISL95710UIU10Z-T |
6
FN8240.2
August 17, 2005
A.C. Timing
Power Up and Down Requirements
In order to prevent unwanted tap position changes, or an
inadvertent store, bring the CS and INC high before or
concurrently with the V
CC
pin on power-up. The
potentiometer voltages must be applied after this sequence
is completed. During power-up, the data sheet parameters
for the DCP do not fully apply until 1ms after V
CC
reaches its
final value. The V
CC
ramp spec is always in effect.
Pin Descriptions
R
H
and R
L
The high (R
H
) and low (R
L
) terminals of the ISL95710 are
equivalent to the fixed terminals of a mechanical
potentiometer. The terminology of R
L
and R
H
references the
relative position of the terminal in relation to wiper movement
direction selected by the U/D input and not the voltage
potential on the terminal.
R
W
R
w
is the wiper terminal and is equivalent to the movable
terminal of a mechanical potentiometer. The position of the
wiper within the array is determined by the wiper counter.
Up/Down (U/D)
The U/D input controls the direction of the wiper movement
and whether the wiper counter is incriminated or
decremented.
Increment (INC)
The INC input is negative-edge triggered. Toggling INC will
move the wiper and either increment or decrement the wiper
counter in the direction indicated by the logic level on the
U/D input.
Chip Select (CS)
The device is selected when the CS input is LOW. The
current wiper counter value is stored in nonvolatile memory
when CS is returned HIGH while the INC input is also HIGH.
After the store operation is complete the ISL95710 will be
placed in the low power standby mode until the device is
selected once again.
Principles of Operation
There are three sections of the ISL95710: the input control,
wiper counter and decode section; the nonvolatile memory;
and the resistor array. The input control section operates as
an up/down counter. The output of this wiper counter is
decoded to turn on a electronic switch connecting a point on
the resistor array to the wiper output. The contents of the
wiper counter can be stored in nonvolatile memory and
retained for future use. The resistor array is comprised of
individual resistors connected in series. At either end of the
array and between each resistor is an electronic switch that
transfers the potential at that point to the wiper.
The wiper, when at either fixed terminal, acts like its
mechanical equivalent and does not move beyond the last
position. The wiper counter does not wrap around when
clocked to either extreme.
The electronic switches on the device operate in a “make
before break” mode when the wiper changes tap positions. If
the wiper is moved several positions, multiple taps are
connected to the wiper for t
IW
(INC to R
W
change). The
R
TOTAL
value for the device can temporarily be reduced 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. When
CS
INC
U/D
R
W
t
CI
t
IL
t
IH
t
CYC
t
ID
t
DI
t
IW
MI
(1)
t
IC
t
CPHS
t
F
t
R
10%
90%
90%
t
CPHNS
Note (1): MI in the timing diagram refers to the minimum incremental change in the wiper position.
ISL95710
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| ISL95710WIU10Z | 功能描述:IC XDCP 128-TAP 10KOHM 10-MSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 標(biāo)準(zhǔn)包裝:3,000 系列:DPP 接片:32 電阻（歐姆）:10k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 300 ppm/°C 存儲(chǔ)器類(lèi)型:非易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-TDFN（2x3） 包裝:帶卷 (TR) |
| ISL95710WIU10Z-T | 功能描述:IC POT DGTL 10K OHM 10-MSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 標(biāo)準(zhǔn)包裝:3,000 系列:DPP 接片:32 電阻（歐姆）:10k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 300 ppm/°C 存儲(chǔ)器類(lèi)型:非易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-TDFN（2x3） 包裝:帶卷 (TR) |
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