DS1225AD Maxim, DS1225AD Datasheet
DS1225AD
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DS1225AD Summary of contents
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... Optional industrial temperature range of -40°C to +85°C, designated IND DESCRIPTION The DS1225AB and DS1225AD are 65,536-bit, fully static, nonvolatile SRAMs organized as 8192 words by 8 bits. Each NV SRAM has a self-contained lithium energy source and control circuitry which constantly monitors V for an out-of-tolerance condition. When such a condition occurs, the lithium ...
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... READ MODE The DS1225AB and DS1225AD execute a read cycle whenever WE (Write Enable) is inactive (high) and CE (Chip Enable) and OE (Output Enable) are active (low). The unique address specified by the 13 address inputs ( defines which of the 8192 bytes of data accessed. Valid data will be ...
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... Operating Current (Industrial) Write Protection Voltage (DS1225AB) Write Protection Voltage (DS1225AD) CAPACITANCE PARAMETER Input Capacitance Input/Output Capacitance SYMBOL MIN TYP V 4.75 5 4. =5V ± 10% for DS1225AD) CC SYMBOL MIN TYP 5.0 CCS1 I 3.0 CCS2 I CC01 I CC01 V 4.50 4. ...
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... WR1 t 10 WR2 t ODW 5 t OEW DH1 t 10 DH2 DS1225AB/ See Note 10) A =5V ± 5% for DS1225AB) CC =5V ± 10% for DS1225AD) CC UNITS NOTES MAX ...
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READ CYCLE SEE NOTE 1 WRITE CYCLE 1 SEE NOTES AND 12 WRITE CYCLE 2 SEE NOTES AND DS1225AB/AD ...
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POWER-DOWN/POWER-UP CONDITION SEE NOTE 11 POWER-DOWN/POWER-UP TIMING PARAMETER V Fail Detect to and slew from slew from Valid to and Inactive ...
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... 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. Each DS1225AB and each DS1225AD has a built-in switch that disconnects the lithium source until V is first applied by the user. The expected t ...
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... DS1225AB-70IND+ -40°C to +85°C DS1225AD-70+ 0°C to +70°C DS1225AD-70IND+ -40°C to +85°C +Denotes a lead(Pb)-free/RoHS-compliant package. PACKAGE INFORMATION For the latest package outline information and land patterns www.maxim-ic.com/packages. “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ...
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... Added package information table; removed the DIP module package 121907 drawing and dimension table Updated the storage information, soldering temperature, and lead temperature information in the Absolute Maximum Ratings section; removed the -85, -150, and -200 MIN/MAX information from the 11/10 AC Electrical Characteristics table; updated the Ordering ...