DS3065WP Maxim, DS3065WP Datasheet
DS3065WP
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DS3065WP Summary of contents
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... Rev 0; 7/10 3.3V, 8Mb, Nonvolatile SRAM with Clock General Description The DS3065WP consists of a static RAM, a nonvolatile (NV) controller, and a real-time clock (RTC). These com- ponents are packaged on a surface-mount substrate and require post-assembly attachment of a DS9034I- PCX+ battery cap. Whenever V CC module, it powers the clock and SRAM from the external power source, and allows the contents of the clock reg- isters or SRAM to be modified ...
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... Storage Temperature Range ............................ -55NC to +125NC Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...
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Nonvolatile SRAM with Clock AC ELECTRICAL CHARACTERISTICS (continued 3.3V Q0.3V -40NC to +85NC, unless otherwise noted PARAMETER SYMBOL Output High Impedance from Deselection Output Hold from Address Write Cycle Time Write Pulse ...
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Nonvolatile SRAM with Clock ADDRESSES DOUT (SEE NOTE 9.) ADDRESSES DOUT DIN (SEE NOTES 10–13 ACC V IH ...
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Nonvolatile SRAM with Clock V IH ADDRESSES DOUT DIN (SEE NOTES 10–13 2. CE, WE ...
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Nonvolatile SRAM with Clock Note 1: All voltages are referenced to ground. Note 2: These parameters are sampled with a 5pF load and are not 100% tested. Note specified as the logical AND of CE ...
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Nonvolatile SRAM with Clock (V = 3.3V +25NC, unless otherwise noted POWER-SUPPLY CURRENT vs. POWER-SUPPLY VOLTAGE 8 5MHz CE-ACTIVATED 7 50% DUTY CYCLE 6 5MHz ADDRESS-ACTIVATED 5 100% DUTY CYCLE 4 1MHz CE-ACTIVATED 3 ...
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... Data Input/Output 6 11 DQ5 Data Input/Output 5 12 DQ4 Data Input/Output 4 13 DQ3 Data Input/Output 3 14 DQ2 Data Input/Output 2 15 DQ1 Data Input/Output 1 16 DQ0 Data Input/Output 0 17 GND Ground 8 + DS3065WP X1 GND BAT X2 PowerCap MODULE PIN ...
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... CC V REF SW GND BATTERY PROTECTION CIRCUITRY (UL RECOGNIZED A0–A19 32.768kHz CS A0–A3 REAL-TIME CLOCK WE OE DELAY TIMING CIRCUITRY REDUNDANT LOGIC REDUNDANT CURRENT-LIMITING SERIES FET RESISTOR Functional Diagram UNINTERRUPTED POWER SUPPLY FOR THE SRAM AND RTC SRAM DQ0–DQ7 WE DS3065WP 9 ...
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... Nonvolatile SRAM with Clock Detailed Description The DS3065WP is an 8Mb (1024k x 8 bits), fully static, nonvolatile (NV) memory similar in function and organiza- tion to the DS1265W NV SRAM, but containing an RTC. The device NV SRAM constantly monitors V of-tolerance condition. When such a condition occurs, the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent data corruption ...
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Nonvolatile SRAM with Clock Clock Operations The device executes an RTC read cycle whenever CE (SRAM chip enable) and WE (write enable) are inactive (high) and CS (RTC chip select) is active (low). The least significant four address ...
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... SRAM and disconnects the lithium energy source. Normal clock or SRAM operation can resume after V exceeds V When the DS9034I-PCX+ battery cap is first attached to a DS3065WP base, the RTC oscillator is disabled and the lithium battery is electrically disconnected, guaran- teeing that no battery capacity has been consumed dur- ing transit or storage. ...
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Nonvolatile SRAM with Clock Table 3. RTC Register Map ADDR xxxxFh 10 YEAR xxxxEh X X xxxxDh X X xxxxCh X FT xxxxBh X X xxxxAh X 10 MINUTES xxxx9h 10 SECONDS OSC xxxx8h W ...
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... V IH The device can be cleaned using aqueous-based clean- ing solutions. No special precautions are needed when cleaning boards containing a DS3065WP module, pro- vided that the cleaning and subsequent drying process is completed prior to the DS9034I-PCX+ attachment. DS3065W modules are recognized by Underwriters Laboratories (UL) under file E99151. ...
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... Initial release 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 2010 Maxim Integrated Products © ...