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DS1338Z-18+
+NomenclatureIC RTC CLK/CALENDAR I2C 8-SOIC
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FabricantAnalog Equipment GmbH / intégration Maxim
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Pièce fabricant #DS1338Z-18+
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Fiche technique DS1338Z-18+ DataSheet
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Package SOIC-8
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Spécifications
| Attribut | Valeur |
| Supplier | Rochester Electronics, LLC,Analog Devices Inc./Maxim Integrated |
| Package | Tube,Tube |
| ProductStatus | Obsolete |
| Type | Clock/Calendar |
| Features | Leap Year, NVSRAM, Square Wave Output |
| MemorySize | 56B |
| TimeFormat | HH:MM:SS (12/24 hr) |
| DateFormat | YY-MM-DD-dd |
| Interface | I²C, 2-Wire Serial |
| Voltage-Supply | 1.71V ~ 5.5V |
| Voltage-SupplyBattery | 1.3V ~ 3.7V |
| Current-Timekeeping(Max) | 100µA @ 1.89V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Présentation
Description
Equivalent
1. Microchip MCP7940N - A similar I2C RTC with additional features like battery backup.
2. NXP PCF8563 - A basic RTC with I2C interface.
3. EPSON RX-8025T - Another RTC with I2C interface, offering low power consumption.
4. STMicroelectronics M41T00 - An RTC with I2C interface, suitable for similar applications.
These alternatives may vary in features, so it's important to check their specifications for compatibility with your application.
Features
Key features include:
- Real-Time Clock (RTC) counts seconds, minutes, hours, day, date, month, and year with leap-year compensation up to 2100.
- Operating voltage range of 1.8V to 5.5V.
- I²C serial interface for easy integration and communication with microcontrollers.
- Low power consumption, extending the battery life when used in portable applications.
- Battery backup input for continuous timekeeping even during power failures.
- Programmable square-wave output.
- Available in a small 8-pin SOIC package for compact applications.
These features make the DS1338Z-18+ suitable for a variety of applications including computers, consumer electronics, and other devices requiring accurate timekeeping.
Pinout
1. VCC: Power supply pin.
2. X1 and X2: Connections for a 32.768 kHz crystal oscillator.
3. GND: Ground pin.
4. SDA (Serial Data): Data input/output for the I²C interface.
5. SCL (Serial Clock): Clock input for the I²C interface.
6. SQW/OUT (Square Wave/Output): Programmable square wave or output pin.
7. VBAT: Backup battery input, providing power when VCC is absent.
This RTC keeps track of time in hours, minutes, and seconds, along with the calendar information including year, month, date, and day. It also provides features such as a programmable square-wave output and two-wire I²C communication.
Manufacturer
Application
1. Consumer Electronics: Maintaining time in devices like TVs, DVRs, and home appliances.
2. Computers and Servers: Providing system time for motherboards and network servers.
3. Industrial Controls: Time-stamping events in automation and control systems.
4. Telecommunications: Synchronizing network equipment.
5. Medical Devices: Logging time in diagnostic equipment.
6. Automotive: Keeping time in infotainment systems.
These applications benefit from the DS1338Z-18+'s low power consumption, battery backup capabilities, and I2C interface for easy integration with microcontrollers.