參數(shù)資料
型號: DS1243Y-120
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: Timer or RTC
英文描述: 0 TIMER(S), REAL TIME CLOCK, PDIP28
封裝: 0.720 INCH, ENCAPSULATED, DIP-28
文件頁數(shù): 5/13頁
文件大小: 245K
代理商: DS1243Y-120
NOTES:
1.
WE
is high for a read cycle.
2. OE = VIH or VIL. If OE = VIH during write cycle, the output buffers remain in a high impedance state.
3. tWP is specified as the logical AND of CE and WE . tWP is measured from the latter of CE or WE
going low to the earlier of CE or WE going high.
4. tDH, tDS are measured from the earlier of CE or WE going high.
5. These parameters are sampled with a 50pF load and are not 100% tested.
6. If the CE low transition occurs simultaneously with or later than the WE low transition in Write
Cycle 1, the output buffers remain in a high impedance state during this period.
7. If the CE high transition occurs prior to or simultaneously with the WE high transition, the output
buffers remain in a high impedance state during this period.
8. If WE is low or the WE low transition occurs prior to or simultaneously with the CE low transition,
the output buffers remain in a high impedance state during this period.
9. The expected tDR is defined as cumulative time in the absence of VCC with the clock oscillator
running.
10. tWR is a function of the latter occurring edge of WE or CE .
11. tDH and tDS are a function of the first occurring edge of WE or CE .
12. RST (Pin1) has an internal pull–up resistor.
13. Real-Time Clock Modules can be successfully processed through conventional wave-soldering
techniques as long as temperature exposure to the lithium energy source contained within does not
exceed +85°C. Post-solder cleaning with water washing techniques is acceptable, provided that
ultrasonic vibration is not used.
PACKAGE INFORMATION
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
PACKAGE TYPE
PACKAGE CODE
DOCUMENT NO.
28 EMOD
MDT28+1
13 of 13
REV: 070705
相關(guān)PDF資料
PDF描述
DS1243Y-150 0 TIMER(S), REAL TIME CLOCK, PDIP28
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1243Y120+ 制造商:Maxim Integrated Products 功能描述:
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DS1243Y-120+ 制造商:Maxim Integrated Products 功能描述:IC
DS1243Y-150 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:64K NV SRAM with Phantom Clock
DS1243Y4120 制造商:Maxim Integrated Products 功能描述: