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參數(shù)資料
| 型號： | DS1678S+T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 2/25頁 |
| 文件大小： | 0K |
| 描述： | IC REAL TIME EVENT REC 8-SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,000 |
| 類型： | 時間事件記錄器 |
| 特點： | 警報器，閏年，NVSRAM，Y2K |
| 存儲容量： | 32B |
| 時間格式： | HH:MM:SS（12/24 小時） |
| 數(shù)據(jù)格式： | YY-MM-DD-dd |
| 接口： | I²C，2 線串口 |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 電壓 - 電源，電池： | 2.6 V ~ 3.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SO |
| 包裝： | 帶卷 (TR) |
DS1678 Real-Time Event Recorder
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The user can write only to the RTC, control registers, and user NV RAM. The rest of the memory map is
read-only from the user’s perspective. During an event-log mission, all the memory is read-only. A write
terminates the mission. If there is an event being recorded when the mission is terminated, the event
finishes being recorded before the mission is stopped, and the values in the MIP and ME bits do not
change to zeros until the mission is complete.
During an event-log mission, memory locations 30h and above are not accessible to the user to avoid data
collisions from a user read and an event being logged at the same time. If the user tries to read a location
with an address greater than 2Fh during a mission, the value returned is 00h.
Table 3. DS1678 Event Elapsed Time Duration
ADDRESS REGISTE
R
0000
Event 1 Elapsed Time from Last Event Counter LSB
0001
Event 1 Elapsed Time from Last Event Counter MSB
0002
Event 2 Elapsed Time from Last Event Counter LSB
0003
Event 2 Elapsed Time from Last Event Counter MSB
0004
07FB
07FC
Event 1023 Elapsed Time from Last Event Counter LSB
07FD
Event 1023 Elapsed Time from Last Event Counter MSB
07FE
Event 1024 Elapsed Time from Last Event Counter LSB
07FF
Event 1024 Elapsed Time from Last Event Counter MSB
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