參數(shù)資料
型號: DS1644-120
英文描述: Nonvolatile Timekeeping RAM
中文描述: 非易失性內(nèi)存時(shí)鐘
文件頁數(shù): 10/11頁
文件大?。?/td> 108K
代理商: DS1644-120
DS1644LPM
041697 10/11
NOTES:
1. All voltages are referenced to ground.
2. Typical values are at 25
°
C and nominal supplies.
3. Outputs are open.
4. Data retention time is at 25
°
C and is calculated from
the date code on the device package. The date code
XXYY is the year followed by the week of the year
in which the device was manufactured. For exam-
ple, 9225, would mean the 25th week of 1992.
5. t
AH1
, t
DH1
are measured from WE going high.
6. t
AH2
, t
DH2
are measured from CE going high.
7. Unencapsulatesd Low Profile Modules are not rec-
ommended for processing through conventional
wavesoldering techniques. The Use of a PLCC
socket is recommended for production purposes.
RECOMMENDED DS1644L MODULE SOCKET LAND PATTERNS
OUTPUT LOAD
+5 VOLTS
100 pF
D.U.T.
1.8K
1K
EITHER A TWO OR FOUR SIDED SOCKET MAY BE
UTILIZED FOR DS1644LPM INSTALLATION.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1644-120+ 功能描述:實(shí)時(shí)時(shí)鐘 NV Timekeeping RAM 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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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
DS1644-15 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Real-Time Clock
DS1644J 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Quad Clock Driver
DS1644L-12 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Real-Time Clock
DS1644L-120 功能描述:實(shí)時(shí)時(shí)鐘 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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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