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参数资料
| 型号： | DS1821C+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 13/19页 |
| 文件大小： | 793K |
| 描述： | IC THERMOMETER/STAT PROG 3-TO92 |
| 标准包装： | 500 |
| 系列： | 1-Wire® |
| 功能： | 温度计，恒温计 |
| 传感器类型： | 内部 |
| 感应温度： | -55°C ~ 125°C |
| 精确度： | ±1°C |
| 拓扑： | 比较器，寄存器库 |
| 输出类型： | 数字 |
| 输出警报： | 无 |
| 输出风扇： | 无 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-226-3、TO-92-3 标准主体 |
| 供应商设备封装： | TO-92-3 |
| 包装： | 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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PDF描述 |
|---|---|
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| DS1842N+T&R | IC CURRENT MONITOR 14TDFN |
| DS18B20+PAR | IC THERM MICROLAN PROG-RES TO-92 |
| DS18B20Z/T&R | IC THERM MICROLAN PROG-RES 8SOIC |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1821C+ | 功能描述:恒温器 Programmable Digital Thermo-stat/monitor RoHS:否 制造商:Maxim Integrated 功能: 开路温度: 闭合温度: 准确性:+/- 1 C 温度范围:- 55 C to + 125 C 电流额定值:500 uA 电压额定值:2.7 V to 5.5 V 产品:Thermostats |
| DS1821-C02 | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| DS1821-C04 | 制造商:DSC 功能描述: |
| DS1821S | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能: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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