- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376962 > DS1921H-F5 High-Resolution Thermochron iButton PDF資料下載
參數(shù)資料
| 型號(hào)： | DS1921H-F5 |
| 英文描述： | High-Resolution Thermochron iButton |
| 中文描述： | 高分辨率Thermochron iButton的 |
| 文件頁數(shù)： | 31/44頁 |
| 文件大小： | 271K |
| 代理商： | DS1921H-F5 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁當(dāng)前第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁
DS1921H/Z
31 of 44
READ/WRITE TIMING DIAGRAM
Figure 15
Write-One Time Slot
RESISTOR
MASTER
V
PUP
V
IHMASTER
V
TH
V
TL
V
ILMAX
0V
t
F
t
SLOT
t
W1L
ε
Write-Zero Time Slot
RESISTOR
MASTER
t
REC
V
PUP
V
IHMASTER
V
TH
V
TL
V
ILMAX
0V
t
F
t
SLOT
t
W0L
Read-Data Time Slot
RESISTOR
MASTER
DS1921H/Z
t
REC
V
PUP
V
IHMASTER
V
TH
V
TL
V
ILMAX
0V
Master
Sampling
Window
δ
t
F
t
SLOT
t
RL
t
MSR
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 rime) 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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1921Z-F5 | High-Resolution Thermochron iButton |
| DS1963L-F5 | NVRAM (Battery Based) |
| DS1963S | SHA iButton |
| DS1971 | 256-Bit EEPROM iButton |
| DS1973 | 4-kbit EEPROM iButton |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1921H-F5# | 功能描述:iButton Thermochron High Res iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)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 |
| DS1921H-F5/A1C | 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)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 |
| DS1921H-F5+A1C | 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)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 |
| DS1921H-F50 | 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)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 |
| DS1921K | 功能描述:存儲(chǔ)器 IC 開發(fā)工具 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Reference Boards 工具用于評(píng)估:M24LR64-R 存儲(chǔ)容量:64 kbit 存儲(chǔ)類型:EEPROM 工作電源電壓:1.8 V to 5.5 V |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。