- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376957 > DS1682S Total Elapsed Time Recorder with Alarm PDF資料下載
參數(shù)資料
| 型號： | DS1682S |
| 英文描述： | Total Elapsed Time Recorder with Alarm |
| 中文描述： | 總運行時間記錄與報警 |
| 文件頁數(shù)： | 7/13頁 |
| 文件大?。?/td> | 77K |
| 代理商： | DS1682S |
DS1682
7 of 13
the WDF is set to a 0, the Alarm Trip Point, Configuration register, Total Time Accumulator, Elapsed
Time Counter, and Event Counter can be written to(if user writable), erased or read.
WMDF
– Write Memory Disable Flag – When the Write Memory Disable command is written to F0h
twice at memory location 1Fh, the WMDF will be set to a 1 and will not be able to be reset or cleared.
Once the WMDF is set to a 1, the 10 byte User Memory will become read-only. When the WMDF is a 0,
the User Memory will function like normal EEPROM.
AOS
– Alarm Output Select – The AOS bit selects the output type for the Alarm# pin. With the AOS bit
set to a 0, the output will be a constant low when Alarm# is active to burn a fuse, interrupt a processor or
send a logic signal to other digital circuitry. With the AOS bit a 1, the output of the Alarm# pin will be
pulled low four times to flash an LED or communicate with an other device at power up, when the
Alarm# pin is pulled low and release or when the alarm becomes active.
RE
– Reset Enable – The Reset Enable bit will allow the device to be reset by enabling the Reset
command. The sections of the 1682 that will be reset is then dependent on the value in the Write Disable
Flag. With the WDF set to 0 and the Reset Enable bit set to a 1, the Reset command will clear the
Elapsed Time Counter, Total Time Accumulate, and Event Counter. When the Reset Enable bit is set to a
0, the Reset command will be disabled.
AP
– Alarm Polarity – The Alarm Polarity bit is intended to allow the Alarm to become active or enabled
when the Total Time Accumulate register is equal to or greater than the Alarm Trip Point register value
(AP=1), or conversely, to allow the Alarm to become active or enabled when the Total Time Accumulate
register is less than the Alarm Trip Point register value (AP=0). This feature allows the user to have the
Alarm output after the values match (AP=1) or up until the values match (AP=0).
ERO
– Event Counter Roll Over – The ERO bit acts like the 17
th
bit of the Event Counter. When the
Event Counter reaches FFh the first time, the next event will cause the ERO to transition from a 0 to a 1
and the Event Counter will roll over to 00h. Once the ERO is set to a 1, the Event Counter will not roll
over again. The Event Counter will stop counting events when the ERO is set to 1 and the Event Counter
is set to FFh.
WRITE DISABLE/WRITE MEMORY DISABLE
The 1682 has two 8 bit registers designed to prevent parts of the device from being written to or erased.
These registers will always read 0 if read by the user, but the Write Disable Flag (WDF) and Write
Memory Disable Flag (WMDF) in the Configuration register will indicate the ability or inability to write
the memory locations.
Write Memory Disable – This register when written two times consecutively to F0h at memory location
1Fh will disable the ability to write to the 10 Bytes of User memory. It will not affect the Alarm Trip
Point register, Total Time Accumulate register, Configuration register, Event Counter, Write Disable
register, or the Reset command. Once the Write Memory Disable written is written to F0h, it will set the
Write Memory Disable Flag in the Configuration register to a 1 and it can not be reset to 0 to allow
writing to the User memory and the memory is permanently disabled from future writes. The memory
becomes Read-Only.
Write Disable – After being written two times consecutively to AAh at memory location 1Eh, will
disabled writes to the device by setting the Write Disable flag in the Configuration register to a 1,
permanently. The Reset command, if the Reset Enable bit in the Configuration register is set to a 1, and
the User memory, if the Write Memory Disable flag is still set to 0, will be the only areas of the 1682 that
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1682X | Total Elapsed Time Recorder with Alarm |
| DS1688 | 3 Volt/5 Volt Serialized Real Time Clock with NV RAM Control |
| DS1688S | 3 Volt/5 Volt Serialized Real Time Clock with NV RAM Control |
| DS1691 | 3 Volt/5 Volt Serialized Real Time Clock with NV RAM Control |
| DS1689 | 3-Volt/5-Volt Serialized Real-Time Clock with NV RAM Control |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1682S/GG8 | 制造商:Maxim Integrated Products 功能描述: |
| DS1682S/T&R | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 10BYTE 8SOIC - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC TIMEKEEPER ALARM ELAPSE 8SOIC |
| DS1682S/T&R | 功能描述:實時時鐘 Total-Elapsed-Time Recorder w/Alarm RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1682S/TR | 制造商:Maxim Integrated Products 功能描述: |
| DS1682S+ | 功能描述:實時時鐘 Total-Elapsed-Time Recorder w/Alarm RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。