参数资料
型号: DS1922E-F5#
厂商: Maxim Integrated
文件页数: 26/44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)
DS1922E
iButton High-Temperature Logger with
8KB Data-Log Memory
FROM FIGURE 9b
CCh
START MISSION
N
33h
STOP MISSION
N
[WITH PW]
MISSION START
[WITH PW]
Y
DELAY PROCESS
Y
MASTER Tx
64 BITS [PASSWORD]
START DELAY
COUNTER = 0?
Y
MASTER Tx
64 BITS [PASSWORD]
MASTER Tx
FFh DUMMY BYTE
N
DS1922E WAITS FOR 1 MINUTE
MASTER Tx
FFh DUMMY BYTE
N
PASSWORD
ACCEPTED?
DS1922E DECREMENTS
START DELAY COUNTER
PASSWORD
ACCEPTED?
N
Y
Y
Y
MISSION IN
PROGRESS?
SUTA = 1?
N
MISSION IN
PROGRESS?
N
N
Y
Y
N
MEMCLR = 1?
DS1922E SETS WFTA = 1
DS1922E SETS
MIP = 0,
WFTA = 0
DS1922E WAITS ONE
Y
DS1922E SETS
SAMPLE PERIOD
MIP = 1,
MEMCLR = 0
Y
MIP = 0?
MASTER Tx RESET?
N
DS1922E INITIATES MISSION
N
Y
START DELAY PROCESS
DS1922E PERFORMS 8-BIT
TEMPERATURE CONVERSION
N
MASTER Tx RESET?
TEMPERATURE
N
ALARM?
Y
Y
DS1922E SETS WFTA = 0
DS1922E WAITS ONE
SAMPLE PERIOD
DS1922E COPIES RTC DATA TO
MISSION TIMESTAMP REGISTER
DS1922E STARTS LOGGING
TAKING FIRST SAMPLE
END OF PROCESS
TO FIGURE 9b
Figure 9c. Memory/Control Function Flowchart (continued)
26
Maxim Integrated
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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
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