- 您现在的位置：买卖IC网 > Datasheet目录221 > DS1922E-F5# (Maxim Integrated)IBUTTON TEMP LOGGER 4KBit F5 Datasheet资料下载
参数资料
| 型号： | DS1922E-F5# |
| 厂商： | Maxim Integrated |
| 文件页数： | 12/44页 |
| 文件大小： | 0K |
| 描述： | IBUTTON TEMP LOGGER 4KBit 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： | 5 |
| 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页当前第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
DS1922E
iButton High-Temperature Logger with
8KB Data-Log Memory
Detailed Register Descriptions
Timekeeping and Calendar
The RTC and calendar information is accessed by
reading/writing the appropriate bytes in the register
page, address 0200h to 0205h. For readings to be
valid, all RTC registers must be read sequentially start-
ing at address 0200h. Some of the RTC bits are set to
0. These bits always read 0 regardless of how they are
written. The number representation of the RTC registers
is binary-coded decimal (BCD) format.
The DS1922E ’s RTC can run in either 12hr or 24hr
mode. Bit 6 of the Hours register (address 0202h) is
defined as the 12hr or 24hr mode select bit. When high,
the 12hr mode is selected. In the 12hr mode, bit 5 is
the AM/PM bit with logic 1 being PM. In the 24hr mode,
bit 5 is the 20hr bit (20hr to 23hr). The CENT bit, bit 7 of
Sample Rate
The content of the Sample Rate register (addresses
0206h, 0207h) specifies the time elapse (in seconds if
EHSS = 1, or minutes if EHSS = 0) between two tem-
perature-logging events. The sample rate can be any
value from 1 to 16,383, coded as an unsigned 14-bit
binary number. If EHSS = 1, the shortest time between
logging events is 1s and the longest (sample rate =
3FFFh) is 4.55hr. If EHSS = 0, the shortest is 1min and
the longest time is 273.05hr (sample rate = 3FFFh). The
EHSS bit is located in the RTC Control register at
address 0212h. It is important that the user sets the
EHSS bit accordingly while setting the Sample Rate
register. Writing a sample rate of 0000h results in a
sample rate = 0001h, causing the DS1922E to log
the temperature either every minute or every sec-
ond depending upon the state of the EHSS bit.
the Months register, can be written by the user. This bit
changes its state when the years counter transitions
from 99 to 00.
The calendar logic is designed to automatically com-
pensate for leap years. For every year value that is
either 00 or a multiple of 4, the device adds a 29th of
February. This works correctly up to (but not including)
the year 2100.
RTC Registers
ADDRESS
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
0200h
0201h
0
0
10 Seconds
10 Minutes
Single Seconds
Single Minutes
0202h
0
12/24
20 Hour
AM/PM
10 Hour
Single Hours
0203h
0
0
10 Date
Single Date
0204h
CENT
0
0
10 Months
Single Months
0205h
10 Years
Single Years
Note: During a mission, there is only read access to these registers. Bit cells marked “0” always read 0 and cannot be written to 1.
Sample Rate Register
ADDRESS
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
0206h
Sample Rate Low
0207h
0
0
Sample Rate High
Note: During a mission, there is only read access to these registers. Bit cells marked “0” always read 0 and cannot be written to 1.
12
Maxim Integrated
相关PDF资料 |
PDF描述 |
|---|---|
| DS1922L-F5# | IBUTTON TEMP LOGGER |
| DS1923-F5# | IBUTTON TEMP/HUMIDITY LOGGER F5 |
| DS1961S-F3# | IBUTTON EEPROM 1KBit F3 |
| DS1963S-F5+ | IBUTTON MONETARY SHA-1 |
| DS1971-F3+ | IBUTTON EEPROM 256KBIT F3 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1922E-F5# | 功能描述:iButton Temp Logger Ibutton w/8Kb Datalog Mem 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 |
| DS1922F-F5# | 功能描述:iButton DS1922 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 |
| DS1922L | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Temperature Logger iButton with 8KB Data-Log Memory |
| DS1922L_11 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Temperature Logger iButton with 8KB Data-Log Memory |
发布紧急采购，3分钟左右您将得到回复。