(Hong Kong)
Product Summary
The DS17487 is a real-time clock(RTC) designed as successors to the industry standard DS1285, DS1385, DS1485, DS1585, and DS1685 PC real-time clocks. The DS17487 provides the industry standard DS1285 clock function with either +3V or +5V operation. The DS17487-5 also incorporates a number of enhanced features including a silicon serial number, power-on/off control circuitry, 114 bytes of user NV SRAM plus 4kB of additional NV RAM, and 32.768kHz output for sustaining power management activities.
Parametrics
DS17487 absolute maximum ratings: (1)Voltage Range on Any Pin Relative to Ground: -0.3V to +7.0V; (2)Storage Temperature Range: -40℃ to +85℃; (3)Soldering Temperature Range: +260℃.
Features
DS17487 features: (1)Y2K compliant; (2)+3V or +5V operation; (3)SMI recovery stack; (4)64-bit silicon serial number; (5)Power-control circuitry supports system power-on from date/time alarm or key closure; (6)32kHz output on power-up; (7)Crystal select bit allows RTC to operate with 6pF or 12.5pF crystal; (8)114 bytes user NV RAM; (9)Auxiliary battery input; (10)4kB additional NV RAM; (11)RAM clear input; (12)Century register; (13)Date alarm register.
Diagrams
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 DS17 |
Other |
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DS1701K |
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KIT ONE-WIRE THERMAL MGMT |
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DS1702K |
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KIT TWO-WIRE THERMAL MGMT |
Data Sheet |
Negotiable |
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DS1703K-KIT |
Maxim Integrated Products |
Temperature Sensor Development Tools |
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Negotiable |
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DS1705 |
Other |
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Data Sheet |
Negotiable |
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DS1705EPA |
Maxim Integrated Products |
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