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參數(shù)資料
| 型號： | DS1985-F3 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Programmable ROM |
| 英文描述： | 2K X 8 EEPROM 3V, RDB2 |
| 封裝： | MICROCAN-2 |
| 文件頁數(shù)： | 13/25頁 |
| 文件大?。?/td> | 449K |
| 代理商： | DS1985-F3 |
DS1985
20 of 25
(Figure 11) should be applied for 480
s, after which the bus master returns the data line to an idle high
state controlled by the pullup resistor. Note that due to the high voltage programming requirements for
any 1-Wire EPROM device, it is not possible to multidrop non-EPROM based 1-Wire devices with the
DS1985 during programming. An internal diode within the non-EPROM based 1-Wire devices will
attempt to clamp the data line at approximately 8 volts and could potentially damage these devices.
INITIALIZATION PROCEDURE “RESET AND PRESENCE PULSES” Figure 9
480
s ≤ t
RSTL <
∞ *
480
s ≤ t
RSTH <
∞ (includes recovery time)
15
s ≤ t
PDH < 60
s
60
s ≤ t
PDL < 240
s
In order not to mask interrupt signaling by other devices on the 1-Wire bus, t
RSTL + tR should always
be less than 960
s.
READ/WRITE TIMING DIAGRAM Figure 10
Write-1 Time Slot
60
s ≤ t
SLOT < 120
s
1
s ≤ t
LOW1 < 15
s
1
s ≤ t
REC <
∞
RESISTOR
MASTER
RESISTOR
MASTER
DS1985
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS1985-F3# | 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 |
| DS1985-F3+ | 功能描述:iButton 16Kb Add-Only 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 |
| DS1985-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 |
| DS1985-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 |
| DS1985-F5+ | 功能描述:iButton 16Kb Add-Only 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 |
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