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DS1904
CLOCK FUNCTION COMMAND FLOW CHART Figure 5
Master TX Control
Function Command
66H
Read Clock
?
Y
N
99H
Write Clock
?
Y
N
DS1904 copies
RTC Counter
to R/W Buffer
Bus Master RX
Device Control Byte
Bus Master RX
LS Byte (7:0)
Bus Master RX
next Byte (15:8)
Bus Master RX
next Byte (23:16)
Bus Master RX
MS Byte (31:24)
Bus Master TX
Device Control Byte
Bus Master TX
LS Byte (7:0)
Bus Master TX
next Byte (15:8)
Bus Master TX
next Byte (23:16)
Bus Master TX
MS Byte (31:24)
N
Bus Master
TX Reset
?
N
Bus Master
TX Reset
?
Y
DS1904 copies
R/W Buffer
to RTC Counter
N
Bus Master
TX Reset
?
Y
Y
DS1904 TX
Presence Pulse
5 of 13
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相关代理商/技术参数
DS1904L-F5+
功能描述:iButton RoHS:否 存储类型:SRAM 存储容量:512 B 组织: 工作电源电压:3 V to 5.25 V 接口类型:1-Wire 最大工作温度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封装 / 箱体:F5 MicroCan 制造商:Maxim Integrated
DS1920
制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Temperature iButton
DS1920+F5
制造商:Maxim Integrated Products 功能描述:TEMP IBTN 2PIN F5 MICROCAN - Rail/Tube
DS1920-F3
制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Temperature iButton
DS1920-F5
功能描述:iButton RoHS:否 存储类型:SRAM 存储容量:512 B 组织: 工作电源电压:3 V to 5.25 V 接口类型:1-Wire 最大工作温度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封装 / 箱体:F5 MicroCan 制造商:Maxim Integrated
DS1920-F5+
功能描述:iButton Temperature iButton RoHS:否 存储类型:SRAM 存储容量:512 B 组织: 工作电源电压:3 V to 5.25 V 接口类型:1-Wire 最大工作温度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封装 / 箱体:F5 MicroCan 制造商:Maxim Integrated
DS1921
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制造商:未知厂家 制造商全称:未知厂家 功能描述:Thermochron iButton