DS1747P-70+ Maxim Integrated Products, DS1747P-70+ Datasheet
DS1747P-70+
Specifications of DS1747P-70+
Related parts for DS1747P-70+
DS1747P-70+ Summary of contents
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... Maxim 2 DS1747 A14 A17 A12 4 29 A13 A11 A10 DQ7 DQ0 DQ6 14 19 DQ1 DQ5 DQ2 15 18 DQ4 17 GND 16 DQ3 Encapsulated DIP (512k Maxim 33 2 DS1747P GND BAT PowerCap Module Board (Uses DS9034PCX PowerCap) A18 A17 A14 A13 A12 A11 A10 ...
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... Pin Configuration) (See Pin — Configuration) DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs NAME FUNCTION A18 A16 A14 A12 Address Input A10 A11 A9 A8 A13 A17 A15 DQ0 DQ1 DQ2 DQ3 Data Input/Output DQ4 DQ5 DQ6 DQ7 GND Ground ...
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... ORDERING INFORMATION SUPPLY PART VOLTAGE DS1747-70+ DS1747-70IND+ DS1747P-70+ DS1747P-70IND+ DS1747W-120+ DS1747W-120IND+ DS1747WP-120+ DS1747WP-120IND+ +Denotes a lead(Pb)-free/RoHS-compliant package. *DS9034PCX+ or DS9034I-PCX+ required (must be ordered separately). † A “+” indicates lead(Pb)-free. The top mark will include a “+” symbol on lead(Pb)-free devices. DESCRIPTION The DS1747 is a full-function, year-2000-compliant (Y2KC), real-time clock/calendar (RTC) and 512k x 8 nonvolatile static RAM ...
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... This design allows the Power-Cap to be mounted on top of the DS1747P after the completion of the surface mount process. Mounting the PowerCap after the surface mount process prevents damage to the crystal and battery due to the high temperatures required for solder reflow ...
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... Clock accuracy is also affected by the electrical environment and caution should be taken to place the RTC in the lowest-level EMI section of the PC board layout. For additional information, refer to Application Note 58. DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs OE WE MODE ...
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... low prior to WE transitioning low the data bus can become active with read data defined by the address inputs. A low transition on WE will then disable the output t WEZ DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs DATA B5 B4 ...
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... This bit is not writable and should always be a one when read zero is ever present, an exhausted lithium energy source is indicated and both the contents of the RTC and RAM are questionable. DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs , (point at which write protection occurs) the PF ...
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... CE 0.2V) CC Input Leakage Current (Any Input) Output Leakage Current (Any Output) Output Logic 1 Voltage (I = -1.0mA) OUT Output Logic 0 Voltage (I = +2.1mA) OUT Write Protection Voltage Battery Switchover Voltage DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs SYMBOL MIN TYP -0.3 IL SYMBOL ...
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... AC CHARACTERISTICS—READ CYCLE (5V) = 5.0V 10 Over the Operating Range PARAMETER Read Cycle Time Address Access Time Low Access Time CE Data Off Time Low-Z OE Access Time OE Data Off Time Output Hold from Address DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs SYMBOL MIN TYP Icc Icc 1 Icc ...
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... Over the Operating Range PARAMETER Read Cycle Time Address Access Time Low Access Time CE Data Off Time Low-Z OE Access Time OE Data Off Time Output Hold from Address READ CYCLE TIMING DIAGRAM DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs SYMBOL MIN TYP t 120 CEL t CEA ...
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... Write Cycle Time Address Setup Time WE Pulse Width CE Pulse Width CE and CE2 Pulse Width Data Setup Time Data Hold Time Data Hold Time Address Hold Time Address Hold Time WE Data Off Time Write Recovery Time DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs SYMBOL MIN TYP ...
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... WRITE CYCLE TIMING DIAGRAM, WRITE-ENABLE CONTROLLED WRITE CYCLE TIMING DIAGRAM, CHIP-ENABLE CONTROLLED DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs ...
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... Fall Time PF(MAX) V PF(MIN) V Fall Time PF(MIN Rise Time PF(MIN MAX) Power-Up Recover Time VPF to RST High (PowerCap Only) Expected Data-Retention Time (Oscillator ON) POWER-UP/DOWN TIMING (5V DEVICE) DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs SYMBOL MIN TYP 300 REC MAX UNITS NOTES s s ...
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... PF(MAX) Power-Up Recover Time V to RST High (PowerCap PF Only) Expected Data-Retention Time (Oscillator ON) POWER-UP/DOWN WAVEFORM TIMING (3.3V DEVICE) CAPACITANCE (T = +25°C) A PARAMETER Capacitance on All Input Pins Capacitance on All Output Pins DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs SYMBOL MIN TYP 300 REC t 10 ...
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... For the latest package outline information and land patterns www.maxim-ic.com/packages. 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. PACKAGE TYPE PACKAGE CODE 32 EDIP 34 PWRCP DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs DOCUMENT NO. MDT32+4 21-0245 PC2+1 21-0246 ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time 2010 Maxim Integrated Products DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs DESCRIPTION Maxim and the Dallas logo are registered trademarks of Maxim Integrated Products. ...