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DS1904
NOTES:
1. All voltages are referenced to ground.
2. V PUP = external pull-up voltage; see Figure 6.
3. Under certain low voltage conditions V IL1MAX may have to be reduced to as much as 0.5V to always
guarantee a presence pulse.
4. Input load is to ground.
5. Guaranteed by design; not production tested.
6. The master must read while the data is valid.
7. 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.
8. 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.
9. This specification applies if the 1-Wire is idle (high or low). Communication on the 1-Wire may
adversely affect the accuracy of the device. For highest accuracy, connect the DS1904 to a separate
1-Wire port and limit the access to the minimum acceptable by the application.
PRODUCT LIFETIME VS. TEMPERATURE
22.00
20.00
18.00
16.00
14.00
12.00
10.00
8.00
6.00
4.00
2.00
0.00
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
Temperature (°C)
PACKAGE INFORMATION
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages . Note
that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix
character, but the drawing pertains to the package regardless of RoHS status.
PACKAGE TYPE
F5 iButton
PACKAGE CODE
IB#5CB
OUTLINE NO.
LAND PATTERN NO.
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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
制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:High-Resolution Thermochron iButton
DS1921G
制造商:未知厂家 制造商全称:未知厂家 功能描述:Thermochron iButton