- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376963 > DS1985-F3 16-kbit Add-Only iButton PDF資料下載
參數(shù)資料
| 型號： | DS1985-F3 |
| 英文描述： | 16-kbit Add-Only iButton |
| 中文描述： | 16千比特只添加iButton的 |
| 文件頁數(shù)： | 25/25頁 |
| 文件大?。?/td> | 440K |
| 代理商： | DS1985-F3 |
DS1985
25 of 25
NOTES:
1.
All voltages are referenced to ground.
2.
V
PUP
= external pullup voltage. If V
PUP
is lower than 3.0V the first byte read (any read command)
may not reproduce the correct memory contents. Therefore, under low voltage conditions, it is
recommended to set either the most significant bit or all five most significant bits of TA2 to 1.
Internal circuitry of the chip will force these five bits back to 0
before
they are shifted in the address
counter and CRC generator.
3.
Input load is to ground.
4.
An additional reset or communication sequence cannot begin until the reset high time has expired.
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
μ
s of this falling edge and will remain valid for 14
μ
s minimum. (15
μ
s total from falling edge on 1-Wire bus.)
6.
V
IH
is a function of the external pullup resistor and V
PUP
.
7.
30 nanocoulombs per 72 time slots @ 5.0V.
8.
At V
CC
=5.0V with a 5k
pullup to V
CC
and a maximum time slot of 120
μ
s.
9.
Capacitance on the data pin could be 800 pF when power is first applied. If a 5k
resistor is used to
pull up the data line to V
CC
, 5
μ
s after power has been applied the parasite capacitance will not affect
normal communications.
10.
Under certain low voltage conditions V
ILMAX
may have to be reduced to as much as 0.5V to always
guarantee a presence pulse.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1990P | Analog IC |
| DS1990R | Analog IC |
| DS1991L | Analog IC |
| DS1991LP | Analog IC |
| DS1991LR | Analog IC |
相關(guān)代理商/技術(shù)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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。