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DS1337S+
+StücklisteIC RTC CLK/CALENDAR I2C 8-SOIC
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HerstellerAnalog Devices Inc./Maxim Integrated
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Herstellerteil #DS1337S+
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Paket SOIC-8
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Auf Lager3620
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | Clock/Calendar |
| Features | Alarm, Leap Year |
| TimeFormat | HH:MM:SS (12/24 hr) |
| DateFormat | YY-MM-DD-dd |
| Interface | I²C, 2-Wire Serial |
| Voltage-Supply | 1.3V ~ 5.5V |
| Current-Timekeeping(Max) | 0.93µA ~ 1.1µA @ 3V ~ 5V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 8-TSSOP (0.173, 4.40mm Width) |
| Voltage-SupplyBattery | 1.3V ~ 5.5V |
| MemorySize | 31B |
| Series | Timekeeper® |
Übersicht
Description
The DS1337S+ communicates via I2C interface, making it compatible with a wide range of microcontrollers and processors. It features a programmable square-wave output, two programmable time-of-day alarms, and an automatic power-fail detect and switch circuitry. The chip operates on a low-power supply, which makes it ideal for portable and battery-operated devices.
In an introductory course, one might learn about the basics of RTC functionality, how to interface the DS1337S+ with microcontrollers, and practical applications in timekeeping, logging, and scheduling tasks in embedded systems. Understanding its operation, including setting the time, configuring alarms, and using the I2C protocol, would be fundamental skills gained in such a course.
Equivalent
1. NXP PCF8523: A low-power RTC with similar features.
2. Microchip MCP7940N: Offers similar functionality and additional features like EEPROM.
3. Epson RX-8025T: Provides comparable functionality with low power consumption.
4. STMicroelectronics M41T00S: Functions similarly, with an I2C interface.
These alternatives may vary in specific features, so review their datasheets for compatibility.
Features
1. Clock and Calendar: It keeps track of seconds, minutes, hours, day, date, month, and year information, with leap year compensation up to the year 2100.
2. I2C Interface: The DS1337S+ communicates via a simple I2C serial interface, allowing easy integration with microcontrollers and other devices.
3. Alarm Functions: It includes two programmable time-of-day alarms, which can be set to trigger interrupts at specified times.
4. Oscillator: It typically uses a 32.768 kHz external crystal oscillator for accurate timekeeping.
5. Temperature Compensation: The device ensures time accuracy across a wide temperature range.
6. Low Power Consumption: Designed for low-power operation to extend battery life in portable applications.
7. Battery Backup: It retains timekeeping functionality even during power outages by switching to a backup battery.
These features make the DS1337S+ suitable for applications requiring precise and reliable timekeeping.
Pinout
1. VCC: Power supply pin (2.0V to 5.5V).
2. GND: Ground pin.
3. SCL: Serial Clock Input. Used for I2C communication.
4. SDA: Serial Data Input/Output. Used for I2C communication.
5. SQW/OUT: Square Wave/Output Driver. Configurable for square-wave output or as a simple output.
6. 32kHz: 32.768 kHz output (optional, depending on specific version/configuration).
7. VBAT: Backup Battery Input. Provides power when the main supply is absent.
8. N.C.: Not Connected (commonly used for mechanical stability or other package-specific requirements).
The DS1337S+ provides timekeeping functions, including seconds, minutes, hours, day, date, month, and year. It supports both 24-hour and 12-hour formats with an AM/PM indicator. The device communicates via the I2C protocol, making it easy to integrate into microcontroller-based systems.
Manufacturer
Application
1. Consumer electronics: For maintaining time in devices like TVs, DVD players, and home automation systems.
2. Computing systems: To provide timekeeping in personal computers and servers.
3. Industrial equipment: Used for logging time-stamped data in industrial automation systems.
4. Telecommunications: For synchronizing network equipment and communication devices.
5. Portable devices: In gadgets like digital cameras to keep track of time and date.
6. Automotive systems: Used for timekeeping in vehicle electronics.
These applications benefit from the DS1337S+’s low power consumption, I2C interface, and battery backup capabilities.