參數(shù)資料
型號(hào)： M48T35AV-10MH1F
廠商： STMICROELECTRONICS
元件分類(lèi)： 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取
英文描述： 0 TIMER(S), REAL TIME CLOCK, PDSO28
封裝： 0.330 INCH, ROHS COMPLIANT, PLASTIC, SOH-28
文件頁(yè)數(shù)： 4/29頁(yè)
文件大小： 512K
代理商： M48T35AV-10MH1F
Operation modes
M48T35AV
Doc ID 6845 Rev 8
Also, as VCC rises, the battery voltage is checked. If the voltage is less than approximately
2.5 V, an internal battery not OK (BOK) flag will be set. The BOK flag can be checked after
power up. If the BOK flag is set, the first WRITE attempted will be blocked. The flag is
automatically cleared after the first WRITE, and normal RAM operation resumes. Figure 8
illustrates how a BOK check routine could be structured.
For more information on battery storage life refer to the application note AN1012.
Figure 8.
Checking the BOK flag status
READ DATA
AT ANY ADDRESS
AI00607
IS DATA
COMPLEMENT
OF FIRST
READ?
(BATTERY OK)
POWER-UP
YES
NO
WRITE DATA
COMPLEMENT BACK
TO SAME ADDRESS
READ DATA
AT SAME
ADDRESS AGAIN
NOTIFY SYSTEM
OF LOW BATTERY
(DATA MAY BE
CORRUPTED)
WRITE ORIGINAL
DATA BACK TO
SAME ADDRESS
(BATTERY LOW)
CONTINUE
相關(guān)PDF資料
PDF描述
M48T35AY-70MH6F REAL TIME CLOCK, PDSO28
M48T35AY-70MH6TR 0 TIMER(S), REAL TIME CLOCK, PDSO28
M48T35AV-10MH1 0 TIMER(S), REAL TIME CLOCK, PDSO28
M48T35AY-70MH1F REAL TIME CLOCK, PDSO28
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M48T35AV-10MH1TR 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:256 Kbit 32Kb x8 TIMEKEEPER SRAM
M48T35AV-10MH6 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:256 Kbit 32Kb x8 TIMEKEEPER SRAM
M48T35AV-10MH6E 功能描述:NVRAM 256K (32Kx8) 100ns BULK RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)總線寬度:8 bit 存儲(chǔ)容量:1024 Kbit 組織:128 K x 8 接口類(lèi)型:Parallel 訪問(wèn)時(shí)間:70 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 工作電流:85 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 封裝 / 箱體:EDIP 封裝:Tube
M48T35AV-10MH6F 功能描述:NVRAM 256K (32Kx8) 100ns RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)總線寬度:8 bit 存儲(chǔ)容量:1024 Kbit 組織:128 K x 8 接口類(lèi)型:Parallel 訪問(wèn)時(shí)間:70 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 工作電流:85 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 封裝 / 箱體:EDIP 封裝:Tube
M48T35AV-10MH6TR 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:256 Kbit 32Kb x8 TIMEKEEPER SRAM
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