(China (Mainland))
Product Summary
The DS1302 trickle-charge time keeping chip contains a real-time clock / calendar and 31 bytes of static RAM. It communicates with a microprocessor via a simple serial interface. Interfacing the DS1302 with a microprocessor is simplified by using synchronous serial communication. Only three wires are required to communicate with the clock/RAM: CE, I/O (data line), and SCLK (serial clock). Data can be transferred to and from the clock/RAM 1 byte at a time or in a burst of up to 31 bytes. The DS1302 is designed to operate on very low power and retain data and clock information on less than 1μW.
Parametrics
DS1302 absolute maximum ratings: (1)Voltage Range on Any Pin Relative to Ground: -0.5Vto +7.0V ; (2)Operating Temperature Range, Commercial: 0℃ to +70℃ ; (3)Operating Temperature Range, Industrial (IND): -40℃ to +85℃; (4)Storage Temperature Range: -55℃ to +125℃ ; (5)Soldering Temperature (leads, 10 seconds): 260℃; (6)Soldering Temperature (surface mount): See IPC/JEDEC J-STD-020.
Features
DS1302 features: (1)Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2100 ; (2)31 x 8 RAM for Scratchpad Data Storage ; (3)Serial I/O for Minimum Pin Count ; (4)2.0V to 5.5V Full Operation ; (5)Uses Less than 300nA at 2.0V ; (6)Single-Byte or Multiple-Byte (Burst Mode) Data Transfer for Read or Write of Clock or RAM Data ; (7)8-Pin DIP or Optional 8-Pin SO for Surface Mount ; (8)Simple 3-Wire Interface ; (9)TTL-Compatible (VCC = 5V) ; (10)Optional Industrial Temperature Range: -40℃ to +85℃ ; (11)DS1202 Compatible ; (12)Underwriters Laboratory (UL) Recognized.
Diagrams
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 DS1302 |
Maxim Integrated Products |
Real Time Clock Trickle-Charge Timekeeping Chip |
Data Sheet |
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DS1302+ |
Maxim Integrated Products |
Real Time Clock Trickle-Charge Timekeeping Chip |
Data Sheet |
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DS1302N |
Maxim Integrated Products |
Real Time Clock Trickle-Charge Timekeeping Chip |
Data Sheet |
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DS1302N+ |
Maxim Integrated Products |
Real Time Clock Trickle-Charge Timekeeping Chip |
Data Sheet |
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DS1302S |
Maxim Integrated Products |
Real Time Clock Trickle-Charge Timekeeping Chip |
Data Sheet |
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DS1302S/T&R |
Maxim Integrated Products |
Real Time Clock Trickle-Charge Timekeeping Chip |
Data Sheet |
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DS1302S+ |
Maxim Integrated Products |
Real Time Clock Trickle-Charge Timekeeping Chip |
Data Sheet |
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DS1302S+T&R |
Maxim Integrated Products |
Real Time Clock Trickle-Charge Timekeeping Chip |
Data Sheet |
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