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參數(shù)資料
| 型號(hào)： | DS2422S |
| 英文描述： | 1-Wire Temperature/Datalogger with 8kB Datalog Memory |
| 中文描述： | 1 - Wire溫度/數(shù)據(jù)記錄器與8kB的數(shù)據(jù)記錄存儲(chǔ)器 |
| 文件頁數(shù)： | 17/48頁 |
| 文件大?。?/td> | 444K |
| 代理商： | DS2422S |
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DS2422
17 of 48
MISSION CONTROL
The DS2422 is set up for its operation by writing appropriate data to its special function registers, which are located
in the two register pages. The settings in the Mission Control Register determine whether temperature and/or
external data is logged, which format (8 or 16 bits) is to be used and whether old data may be overwritten by new
data, once the datalog memory is full. An additional control bit can be set to tell the DS2422 to wait with logging
data until a temperature alarm is encountered.
Mission Control Register Bitmap
ADDR
0213h
b7
1
b6
1
b5
b4
RO
b3
b2
b1
EDL
b0
ETL
SUTA
DLFS
TLFS
During a mission, there is only read access to this register. Bits 6 and 7 have no function. They always read 1 and
cannot be written to 0.
Register Details
BIT DESCRIPTION
ETL: Enable Temperature
Logging
BIT(S)
b0
DEFINITION
To set up the device for a temperature-logging mission, this bit must be
set to logic 1. To successfully start a mission, ETL or EDL must be 1. If
temperature logging is enabled, the recorded temperature values will
always be stored starting at address 1000h.
To set up the device for a data-logging mission (recording data from
serial data interface), this bit must be set to logic 1. To successfully
start a mission, ETL or EDL must be 1. If only data logging is enabled
(no temperature data), the recorded data values will be stored starting
at address 1000h. If both, temperature and data logging are enabled,
the recorded data values will begin at address 2000h (TLFS = DLFS)
or 1A00h (TLFS = 0; DLFS = 1) or 2400h (TLFS = 1; DLFS = 0).
This bit specifies the format used to store temperature readings in the
datalog memory. If this bit is 0, the data will be stored in 8-bit format. If
this bit is 1, the 16-bit format will be used (higher resolution). With 16-
bit format, the most-significant byte is stored at the lower address.
This bit specifies the format used to store data readings from the serial
data interface in the datalog memory. If this bit is 0, the data will be
stored in 8-bit format. If this bit is 1, the 16-bit format will be used
(higher resolution). With 16-bit format, the most-significant byte is
stored at the lower address.
This bit controls whether, during a mission, the datalog memory is
overwritten with new data or whether data logging is stopped once the
datalog memory is full. Setting this bit to 1 enables the rollover and
data logging continues at the beginning, overwriting previously
collected data. If this bit is 0, the logging and conversions will stop
once the datalog memory is full. However, the RTC will continue to run
and the MIP bit will remain set until the Stop Mission command is
performed.
This bit specifies whether a mission begins immediately (includes
delayed start) or if a temperature alarm will be required to start the
mission. If this bit is 1, the device will perform an 8-bit temperature
conversion at the selected sample rate and begin with data logging
only if an alarming temperature (high alarm or low alarm) was found.
The first datalog entry will be one sample period
after
the alarm
occurred. The Start Upon Temperature Alarm function is only available
if temperature logging is enabled (ETL = 1).
EDL: Enable Data Logging
b1
TLFS: Temperature
Logging Format Selection
b2
DLFS: Data Logging
Format Selection
b3
RO: Rollover Control
b4
SUTA: Start Mission upon
Temperature Alarm
b5
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PDF描述 |
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| DS2502-E48 | 48-Bit Node Address Chip |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| DS2423D/T&R | 制造商:Maxim Integrated Products 功能描述:IC SRAM 4KBIT 6FLIPCHIP |
| DS2423D/T&R | 功能描述:IC SRAM 4KBIT 6FCHIP RoHS:否 類別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:150 系列:- 格式 - 存儲(chǔ)器:EEPROMs - 串行 存儲(chǔ)器類型:EEPROM 存儲(chǔ)容量:4K (2 x 256 x 8) 速度:400kHz 接口:I²C，2 線串口 電源電壓:2.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 封裝/外殼:8-VFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-DFN（2x3） 包裝:管件 產(chǎn)品目錄頁面:1445 (CN2011-ZH PDF) |
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