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参数资料
| 型号： | DS1921Z-F5# |
| 厂商： | Maxim Integrated |
| 文件页数： | 31/45页 |
| 文件大小： | 0K |
| 描述： | IBUTTON THERMOCHRON F5 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| RoHS指令信息： | IButton RoHS Compliance Plan |
| 标准包装： | 8 |
| 系列： | iButton® |
| 存储容量： | 512B |
| 存储器类型： | NVSRAM（非易失 SRAM） |
| 产品目录页面： | 1431 (CN2011-ZH PDF) |
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READ/WRITE TIMING DIAGRAM Figure 15
DS1921H/Z
Write-One Time Slot
V PUP
V IHMASTER
V TH
V TL
V ILMAX
t W1L
0V
t F
RESISTOR
ε
t SLOT
MASTER
Write-Zero Time Slot
V PUP
V IHMASTER
V TH
V TL
V ILMAX
t W0L
0V
t F
t SLOT
ε
t REC
RESISTOR
MASTER
Read-Data Time Slot
Slave to Master
A read-data time slot begins like a write-one time slot. The voltage on the data line must remain below
V TL until the read low time t RL is expired. During the t RL window, when responding with a 0, the
DS1921H/Z will start pulling the data line low; its internal timing generator determines when this pull-
down ends and the voltage starts rising again. When responding with a 1, the DS1921H/Z will not hold
the data line low at all, and the voltage starts rising as soon as t RL is over.
The sum of t RL + δ (rise time) on one side and the internal timing generator of the DS1921H/Z on the
other side define the master sampling window (t MSRMIN to t MSRMAX ) in which the master must perform a
read from the data line. For most reliable communication, t RL should be as short as permissible and the
master should read close to but no later than t MSRMAX . After reading from the data line, the master must
wait until t SLOT is expired. This guarantees sufficient recovery time t REC for the DS1921H/Z to get ready
for the next time slot.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1921Z-F5# | 功能描述:iButton Thermochron High Res 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 |
| DS1921Z-F5/A1D | 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 |
| DS1921Z-F5+A1D | 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 |
| DS1921Z-F50 | 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 |
| DS1922E | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:High-Temperature Logger iButton with 8KB |
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