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參數(shù)資料
| 型號： | DS2422 |
| 英文描述： | 1-Wire Temperature/Datalogger with 8kB Datalog Memory |
| 中文描述： | 1-Wire®溫度/數(shù)據(jù)記錄器，帶有8KB數(shù)據(jù)記錄存儲器 |
| 文件頁數(shù)： | 41/48頁 |
| 文件大?。?/td> | 444K |
| 代理商： | DS2422 |
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DS2422
41 of 48
Master-to-Slave
For a
write-one
time slot, the voltage on the data line must have crossed the V
TH
threshold before the write-one
low time t
W1LMAX
is expired. For a
write-zero
time slot, the voltage on the data line must stay below the V
TH
threshold until the write-zero low time t
W0LMIN
is expired. For most reliable communication the voltage on the data
line should not exceed V
ILMAX
during the entire t
W0L
or t
W1L
window. After the V
TH
threshold has been crossed, the
DS2422 needs a recovery time t
REC
before it is ready for the next time slot.
Figure 16. Read/Write Timing Diagram
Write-One Time Slot
RESISTOR
MASTER
V
PUP
V
IHMASTER
V
TH
V
TL
V
ILMAX
0V
t
F
t
SLOT
t
W1L
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
DS2422
t
REC
V
PUP
V
IHMASTER
V
TH
V
TL
V
ILMAX
0V
Master
Sampling
Window
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 DS2422 will start pulling the data
line low; its internal timing generator determines when this pulldown ends and the voltage starts rising again. When
responding with a 1, the DS2422 will not hold the data line low at all, and the voltage starts rising as soon as t
RL
is
over.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2422S | 1-Wire Temperature/Datalogger with 8kB Datalog Memory |
| DS2482-800 | Eight-Channel 1-Wire Master |
| DS2482-100 | Single-Channel 1-Wire Master |
| DS2482S-100 | Single-Channel 1-Wire Master |
| DS2482S-800 | Eight-Channel 1-Wire Master |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2422P | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Serial SRAM |
| DS2422S | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| DS2422S+ | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| DS2422X | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| DS2423 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:4kbit 1-Wire RAM with Counter |
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