- 您现在的位置：买卖IC网 > Datasheet目录221 > DS1921H-F5# (Maxim Integrated)IBUTTON THERMOCHRON F5 Datasheet资料下载
参数资料
| 型号： | DS1921H-F5# |
| 厂商： | Maxim Integrated |
| 文件页数： | 36/45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) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页当前第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页
DS1921H/Z
MISSION EXAMPLE: PREPARE AND START A NEW MISSION
Assumption: The previous mission has come to an end. To end an ongoing mission write the MIP bit in
the Status Register to 0.
The preparation of a DS1921H/Z for a mission including the start of the mission requires up to four steps:
Step 1: set the RTC (if it needs to be adjusted)
Step 2: clear the data of the previous mission
Step 3: set the search condition and mission start delay, clear alarm flags
Step 4: set the temperature alarms and write the sample rate to start the mission
STEP 1
Let the actual time be 15:30:00 hours on Monday, the 1 st of April in 2002. This results in the following
data to be written to the RTC registers:
Address:
Data:
200h
00h
201h
30h
202h
15h
203h
01h
204h
81h
205h
04h
206h
02h
With only a single DS1921H/Z connected to the bus master, the communication of step 1 is as follows:
MASTER MODE
TX
RX
TX
TX
TX
TX
TX
TX
RX
TX
TX
RX
RX
RX
RX
TX
RX
TX
TX
TX
DATA (LSB FIRST)
(Reset)
(Presence)
CCh
0Fh
00h
02h
<7 data bytes>
(Reset)
(Presence)
CCh
AAh
00h
02h
06h
<7 data bytes>
(Reset)
(Presence)
CCh
55h
00h
COMMENTS
Reset pulse (480μs to 960μs)
Presence pulse
Issue Skip ROM command
Issue Write Scratchpad command
TA1, beginning offset = 00h
TA2, address = 0200h
Write 7 bytes of data to scratchpad
Reset pulse
Presence pulse
Issue Skip ROM command
Issue Read Scratchpad command
Read TA1, beginning offset = 00h
Read TA2, address = 0200h
Read E/S, ending offset = 6h, flags = 0h
Read scratchpad data and verify
Reset pulse
Presence pulse
Issue Skip ROM command
Issue Copy Scratchpad command
TA1
TX
TX
02h
06h
TA2
E/S
(AUTHORIZATION CODE)
TX
RX
(Reset)
(Presence)
36 of 45
Reset pulse
Presence pulse
相关PDF资料 |
PDF描述 |
|---|---|
| DS1921K# | KIT IBUTTON THERMOCHRON |
| DS1922E-F5# | IBUTTON TEMP LOGGER 4KBit F5 |
| DS1922L-F5# | IBUTTON TEMP LOGGER |
| DS1923-F5# | IBUTTON TEMP/HUMIDITY LOGGER F5 |
| DS1961S-F3# | IBUTTON EEPROM 1KBit F3 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1921H-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 |
| DS1921H-F5/A1C | 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 |
| DS1921H-F5+A1C | 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 |
| DS1921H-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 |
| DS1921K | 功能描述:存储器 IC 开发工具 RoHS:否 制造商:STMicroelectronics 产品:Reference Boards 工具用于评估:M24LR64-R 存储容量:64 kbit 存储类型:EEPROM 工作电源电压:1.8 V to 5.5 V |
发布紧急采购，3分钟左右您将得到回复。