DS1747WP-C01 Maxim Integrated, DS1747WP-C01 Datasheet
DS1747WP-C01
Related parts for DS1747WP-C01
DS1747WP-C01 Summary of contents
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FEATURES Integrated NV SRAM, Real-Time Clock (RTC), Crystal, Power-Fail Control Circuit, and Lithium Energy Source Clock Registers are Accessed Identically to the Static RAM. These Registers are Resident in the Eight Top RAM Locations Century Byte Register ...
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PIN DESCRIPTION EDIP PowerCap ...
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... PIN-PACKAGE TOP MARK 32 EDIP (0.740a) DS1747-70+ 32 EDIP (0.740a) DS1747-70IND+ 34 PowerCap* DS1747P+70 34 PowerCap* DS1747P+70 IND 32 EDIP (0.740a) DS1747W-120+ 32 EDIP (0.740a) DS1747W-120IND+ 34 PowerCap* DS1747WP+120 34 PowerCap* DS1747WP+120 IND supply out-of- CC † ...
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Figure 1. Block Diagram PACKAGES The DS1747 is available in two packages (32-pin DIP and 34-pin PowerCap module). The 32-pin DIP style module integrates the crystal, lithium energy source, and silicon all in one package. The 34-pin PowerCap Module Board ...
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Table 1. Truth Table > <V < <V < SETTING THE CLOCK As shown in Table ...
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Table 2. Register Map ADDRESS B7 B6 7FFFF 10 Year 7FFFE X X 7FFFD X X 7FFFC BF FT 7FFFB X X 7FFFA X 7FFF9 OSC 7FFF8 Read Bit OSC = Stop Bit W = Write ...
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DATA-RETENTION MODE The 5V device is fully accessible and data can be written or read only when V However, when V is below the power failing point internal clock registers and SRAM are blocked from any access. At ...
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ABSOLUTE MAXIMUM RATINGS Voltage Range on Any Pin Relative to Ground 5.5V Version………………………………………………………………………………………….-0.3V to +6.0V 3.3V Version.…………………………………………………………………………………………-0.3V to +4.6V Operating Temperature Range (Noncondensing) Commercial...……………………………………….......................................................................0°C to +70°C Industrial……………………………………………………..……………………………………….-40°C to +85°C Storage Temperature Range EDIP .......................………………………………………………………………………………...-40°C to +85°C PowerCap ........................................................................................................................... -55°C to ...
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DC ELECTRICAL CHARACTERISTICS = 3.3V ±10 Over the Operating Range PARAMETER Active Supply Current TTL Standby Current ( CMOS Standby Current ( CE ≥ 0.2V) CC Input Leakage ...
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AC CHARACTERISTICS—READ CYCLE (3.3V 3.3V ±10 Over the Operating Range PARAMETER Read Cycle Time Address Access Time Low Access Time CE Data Off Time Low-Z OE ...
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AC CHARACTERISTICS—WRITE CYCLE (5V 5.0V ±10 Over the Operating Range PARAMETER Write Cycle Time Address Setup Time WE Pulse Width CE Pulse Width Data Setup Time Data Hold Time Data Hold Time Address Hold ...
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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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POWER-UP/DOWN AC CHARACTERISTICS (5V 5.0V ±10 Over the Operating Range PARAMETER Before Power-Down V Fall Time PF(MAX) V PF(MIN) V Fall Time ...
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POWER-UP/DOWN CHARACTERISTICS (3.3V 3.3V ±10 Over the Operating Range PARAMETER Before H Power-Down V Fall Time PF(MAX) V PF(MIN) V Rise Time ...
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AC TEST CONDITIONS Output Load 1TTL Gate Input Pulse Levels 3.0V Timing Measurement Reference Levels: Input: 1.5V Output: 1.5V Input Pulse Rise and Fall Times: 5ns NOTES: 1) Voltages are referenced to ground. 2) Typical ...
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... 2012 Maxim Integrated Products DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products. PAGES CHANGED ...