DS1244Y-70+ Dallas Semiconductor, DS1244Y-70+ Datasheet
DS1244Y-70+
Specifications of DS1244Y-70+
Related parts for DS1244Y-70+
DS1244Y-70+ Summary of contents
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... Connection to PowerCap Containing Battery and Crystal – Replaceable Battery (PowerCap) – Pin-for-Pin Compatible with DS1248P and DS1251P § Underwriters Laboratory (UL) Recognized § Available in Lead-Free Package PowerCap is a registered trademark of Dallas Semiconductor. DS1244/DS1244P 256k NV SRAM with Phantom Clock PIN CONFIGURATIONS TOP VIEW 1 ...
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... EMOD (0.740a) 3.3 28 EMOD (0.740a) 3.3 28 EMOD (0.740a) 3.3 34 PowerCap* 3.3 34 PowerCap* 3.3 34 PowerCap* 3.3 34 PowerCap* 3.3 28 EMOD (0.740a) 5.0 28 EMOD (0.740a) 5.0 34 PowerCap* 5.0 34 PowerCap* 5 TOP MARK DS1244W-120 DS1244W-120+ DS1244W-120IND DS1244W-120IND+ DS1244WP-120 DS1244WP-120+ DS1244WP-120IND DS1244WP-120IND+ DS1244Y-70 DS1244Y-70+ DS1244YP-70 DS1244YP-70+ ...
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DESCRIPTION The DS1244 256k NV SRAM with a Phantom clock is a fully static nonvolatile RAM (NV SRAM) (organized as 32k words by 8 bits) with a built-in real-time clock. The DS1244 has a self-contained lithium energy source and control ...
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ABSOLUTE MAXIMUM RATINGS Voltage Range on Any Pin Relative to Ground……………………………………………..-0.3V to +6.0V Storage Temperature Range………………………………………………-40ºC to +85ºC (noncondensing) Soldering Temperature……………………………………….See IPC/JEDEC J-STD-020 (DIP) (Note 13) This is a stress rating only and functional operation of the device at these ...
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... Write Recovery Time Output High-Z from WE Output Active from WE Data Setup Time Data Hold Time from WE SYMBOL MIN TYP CCS1 I 2.0 CCS2 I CC01 V 2.80 2. BAT SYMBOL MIN I/O DS1244Y-70 SYMBOL MIN ACC COE ODW t 5 OEW Over the operating range (3.3V) ...
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PHANTOM CLOCK AC ELECTRICAL CHARACTERISTICS PARAMETER Read Cycle Time Access Time CE Access Time OE to Output Low Output Low Output High Output High-Z OE Read Recovery Write Cycle Time Write Pulse Width Write ...
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MEMORY AC ELECTRICAL CHARACTERISTICS PARAMETER Read Cycle Time Access Time to Output Valid OE to Output Valid Output Active OE CE Output High-Z from Deselection Output Hold from Address Change Write Cycle Time Write Pulse Width Address ...
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POWER-DOWN/POWER-UP TIMING PARAMETER at V before Power-Down Slew from PF(MAX PF(MIN Slew from PF(MAX PF(MIN ...
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... In addition, for the PowerCap: 1) Dallas Semiconductor recommends that PowerCap module bases experience one pass through solder reflow oriented with the label side up (“live-bug”). 2) Hand soldering and touch-up: Do not touch or apply the soldering iron to leads for more than three seconds. – ...