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參數(shù)資料
| 型號： | DS2890T |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | 1-Wire Digital Potentiometer |
| 中文描述： | 1 - Wire數(shù)字電位器 |
| 文件頁數(shù)： | 27/27頁 |
| 文件大小： | 939K |
| 代理商： | DS2890T |
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DS2890
27 of 27
AC ELECTRICAL CHARACTERISTICS - OVERDRIVE 1-WIRE SPEED
2.8V
≤
V
PUP
≤
6.0V, -40
°
C
≤
T
A
≤
+85
°
C
MIN
TYP
MAX
PARAMETER
SYMBOL
UNITS
NOTES
Recovery Time
t
REC
1
μs
Reset High Time
t
RSTH
t
RSTL
t
PDH
t
PDL
48
μs
Reset Low Time
48
80
μs
Presence Detect High
2
6
μs
Presence Detect Low
8
24
μs
NOTES:
1.
The optimal sampling point for the master is as close as possible to the end time of the 2
μ
s t
RDV
period without exceeding t
RDV
. For the case of a Read-one time slot, this maximizes the amount of
time for the pull-up resistor to recover the line to a high level. For a Read-zero time slot it ensures
that a read will occur before the fastest 1-Wire device(s) release the line (t
RELEASE
= 0).
2.
Read data setup time refers to the time the host must pull the 1-Wire bus low to read a bit. Data is
guaranteed to be valid within 1 μs of this falling edge.
3.
An additional reset or communication sequence cannot begin until the reset high time (t
RSTH
) has
expired.
4.
The reset low time (t
RSTL
) should be restricted to a maximum of 960 μs, to allow interrupt signaling,
otherwise, it could mask or conceal interrupt pulses.
CAPACITANCE
PARAMETER
TA = 25
°
C
UNITS
SYMBOL
MIN
TYP
MAX
NOTES
1-Wire Pin
800
pF
1
V
DD
Pin
10
pF
Resistor Terminals
10
pF
NOTE:
1.
Capacitance on the 1-Wire pin could be 800 pF when power is first applied. If a 5 k
is used to pull
up the 1-Wire line to V
PUP
, the capacitance will not affect communications after a 5
μ
s charge time.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2890T-000 | 功能描述:數(shù)字電位計 IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS2890V | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:1-Wire Digital Potentiometer |
| DS2890V-000 | 功能描述:數(shù)字電位計 IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS2890X | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:1-Wire Digital Potentiometer |
| DS2890X-000 | 功能描述:IC POT DIGITAL 1-WIRE 100K CSP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 接片:32 電阻（歐姆）:50k 電路數(shù):1 溫度系數(shù):標準值 50 ppm/°C 存儲器類型:易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細型，TSOT-23-6 供應(yīng)商設(shè)備封裝:TSOT-23-6 包裝:帶卷 (TR) |
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