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DS1992/DS1993
Note 1: All voltages are referenced to ground.
Note 2: V IH is a function of the external pullup resistor and the V CC power supply.
Note 3: V PUP = external pullup voltage.
Note 4: Input load is to ground.
Note 5: Capacitance on the data line could be 800pF when power is first applied. If a 5k ? resistor is used
to pull up the data line to V PUP , 5 μ s after power has been applied, the parasite capacitance does not affect
normal communications.
Note 6: Guaranteed by design; not production tested.
Note 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 μ s of this falling edge, and remains valid for 14 μ s minimum (15 μ s total
from falling edge on 1-Wire bus).
Note 8: An additional reset or communication sequence cannot begin until the reset high time has
expired.
Note 9: The reset low time (t RSTL ) should be restricted to a maximum of 960 μ s, to allow interrupt
signaling; otherwise, it could mask or conceal interrupt pulses.
PACKAGE INFORMATION
For the latest package outline information and land patterns (footprints), go to www.maxim-ic.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 packag e regardless of RoHS status.
PACKAGE TYPE
F5 iButton
PACKAGE CODE
IB+5BW
OUTLINE NO.
21-0266
LAND PATTERN NO.
—
16 of 17
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相关代理商/技术参数
DS1993L-F5-C01 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
DS1994 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:4kb Plus Time Memory iButton
DS1994-LF5 制造商: 功能描述: 制造商:undefined 功能描述:
DS1994L-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
DS1994L-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
DS1994L-F5-W 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
DS1994-LFS 制造商: 功能描述: 制造商:undefined 功能描述:
DS1995 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:16-kbit Memory iButton