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參數(shù)資料
| 型號： | DS1821C+ |
| 廠商： | Maxim Integrated |
| 文件頁數(shù)： | 13/19頁 |
| 文件大?。?/td> | 793K |
| 描述： | IC THERMOMETER/STAT PROG 3-TO92 |
| 標(biāo)準(zhǔn)包裝： | 500 |
| 系列： | 1-Wire® |
| 功能： | 溫度計(jì)，恒溫計(jì) |
| 傳感器類型： | 內(nèi)部 |
| 感應(yīng)溫度： | -55°C ~ 125°C |
| 精確度： | ±1°C |
| 拓?fù)洌?/td> | 比較器，寄存器庫 |
| 輸出類型： | 數(shù)字 |
| 輸出警報(bào)： | 無 |
| 輸出風(fēng)扇： | 無 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -55°C ~ 125°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | TO-226-3、TO-92-3 標(biāo)準(zhǔn)主體 |
| 供應(yīng)商設(shè)備封裝： | TO-92-3 |
| 包裝： | 管件 |
DS1821
13 of 19
Figure 9 illustrates that the sum of T
INIT
, T
RC
, and T
SAMPLE
must be less than 15 ?/SPAN>s for a read time slot.
Figure 10 shows that system timing margin is maximized by keeping T
INIT
and T
RC
as short as possible
and by locating the master sample time during read time slots towards the end of the 15 祍 period.
READ/WRITE TIME SLOT TIMING DIAGRAM Figure 8
DETAILED MASTER READ 1 TIMING Figure 9
RECOMMENDED MASTER READ 1 TIMING Figure 10
V
DD
GND
1-WIRE BUS
15 ?/SPAN>s
VIH of Master
T
RC
T
INT
> 1 ?/SPAN>s
Master samples
V
DD
GND
1-WIRE BUS
15 ?/SPAN>s
VIH of Master
T
RC
=
T
INT
=
small
Master samples
LINE TYPE LEGEND (Figure 8, Figure 9 and Figure 10)
Bus master pulling low
DS1821 pulling low
Resistor pullup
45 ?/SPAN>s
15 ?/SPAN>s
V
DD
GND
1-WIRE BUS
60 s < T
X
0 < 120
1 ?/SPAN>s < T
REC
<
DS1821 samples
15 ?/SPAN>s
30 ?/SPAN>s
> 1 ?/SPAN>s
MASTER WRITE 0 SLOT
MASTER WRITE 1 SLOT
DS1821 samples
V
DD
GND
1-WIRE BUS
15 ?/SPAN>s
MASTER READ 0 SLOT
MASTER READ 1 SLOT
Master samples
Master samples
START
OF SLOT
START
OF SLOT
> 1 ?/SPAN>s
1 ?/SPAN>s < T
REC
<
15 ?/SPAN>s
15 ?/SPAN>s
30 ?/SPAN>s
15 ?/SPAN>s
> 1 ?/SPAN>s
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1821C+ | 功能描述:恒溫器 Programmable Digital Thermo-stat/monitor RoHS:否 制造商:Maxim Integrated 功能: 開路溫度: 閉合溫度: 準(zhǔn)確性:+/- 1 C 溫度范圍:- 55 C to + 125 C 電流額定值:500 uA 電壓額定值:2.7 V to 5.5 V 產(chǎn)品:Thermostats |
| DS1821-C02 | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| DS1821-C04 | 制造商:DSC 功能描述: |
| DS1821S | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| DS1821S/T&R | 制造商:Maxim Integrated Products 功能描述:PROGRAM THERMOSTAT 208ML 8-SOIC T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERMOMETER/STAT PROG 8-SOIC |
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