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參數(shù)資料
| 型號： | DS1994 |
| 英文描述： | 4kb Plus Time Memory iButton |
| 中文描述： | 4K位、帶有時(shí)鐘的存儲器iButton® |
| 文件頁數(shù)： | 22/22頁 |
| 文件大?。?/td> | 254K |
| 代理商： | DS1994 |
DS1994
Reset Time Low (Note 7)
t
RSTL
480
Presence Detect High
t
PDH
15
Presence Detect Low
t
PDL
60
22 of 22
960
60
240
s
s
s
Note 1:
All voltages are referenced to ground.
Note 2:
V
PUP
= external pullup voltage.
Note 3:
Input load is to ground.
Note 4:
An additional reset or communication sequence cannot begin until the reset high time has
expired.
Note 5:
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 s of this falling edge and remains valid for 14 s minimum. (15 s
total from falling edge on 1-Wire bus.)
Note 6:
Capacitance on the data line could be 800pF when power is first applied. If a 5k
to pull up the data line to V
PUP
, 5 s after power has been applied, the parasite capacitance does
not affect normal communications.
Note 7:
The reset low time (t
RSTL
) should be restricted to a maximum of 960 s to allow interrupt
signaling; otherwise, it could mask or conceal interrupt pulses.
Note 8:
Guaranteed by design, not production tested.
resistor is used
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 存儲類型:SRAM 存儲容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated |
| DS1994L-F5+ | 功能描述:iButton RoHS:否 存儲類型:SRAM 存儲容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated |
| DS1994L-F5-W | 功能描述:iButton RoHS:否 存儲類型:SRAM 存儲容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated |
| DS1994-LFS | 制造商: 功能描述: 制造商:undefined 功能描述: |
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