DS1308U-33+T

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DS1308U-33+T

IC RTC CLK/CALENDAR I2C 8-UMAX

  • Fabricant
  • Mfr. Partie #DS1308U-33+T
  • Paquet MSOP8
  • Fiche de données
  • En stock2901

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Spécifications

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
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 3V ~ 5.5V
Voltage-SupplyBattery 1.3V ~ 5.5V
Current-Timekeeping(Max) 125µA ~ 200µA @ 3V ~ 5.5V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 8-TSSOP, 8-MSOP (0.118, 3.00mm Width)

Vue d'ensemble

Description

The DS1308U-33+T is a real-time clock (RTC) integrated circuit designed by Maxim Integrated (now part of Analog Devices). It provides accurate timekeeping for various applications, including embedded systems, consumer electronics, and industrial equipment. The device operates on a supply voltage of 3.0 to 5.5 volts and features a low power consumption mode, making it suitable for battery-operated devices.
Key features include an I²C interface for easy communication with microcontrollers, a built-in crystal oscillator, and an alarm function. The DS1308U-33+T can keep track of seconds, minutes, hours, days, months, and years, including leap year adjustments. It also offers a programmable square wave output for timing applications.
The package is compact, typically available in an 8-lead SOIC form factor, facilitating integration into space-constrained designs. Overall, the DS1308U-33+T is ideal for applications requiring reliable timekeeping and low power consumption.

Features

The DS1308U-33+T is a real-time clock (RTC) integrated circuit from Maxim Integrated. Key features include:
1. Timekeeping Functionality: It provides real-time tracking of hours, minutes, seconds, and allows for calendar functions (year, month, day).
2. Power Supply: Operates on a wide voltage range of 2.0V to 5.5V, making it suitable for various applications.
3. Non-Volatile Memory: Features a battery backup that maintains timekeeping during power outages.
4. I2C Interface: Communicates with microcontrollers via a simple I2C-compatible bus, allowing for easy integration.
5. Temperature Compensation: Offers improved accuracy with temperature compensation to minimize time drift.
6. Programmable Alarm: Includes programmable alarm settings for wake-up signals.
7. Low Power Consumption: Designed for low power usage, making it ideal for battery-operated devices.
8. Compact Package: Available in a small, surface-mount package for space-constrained applications.
These features make the DS1308U-33+T suitable for a variety of applications including clocks, timers, and event logging systems.

Package

The DS1308U-33+T is packaged in a 16-pin SOIC (Small Outline Integrated Circuit) package. This type of package is surface-mounted, allowing for efficient use of space on PCBs.

Pinout

The DS1308U-33+T is a real-time clock (RTC) integrated circuit with a total of 8 pins. The pin functions are as follows:
1. VCC: Power supply pin (2.0V to 5.5V).
2. GND: Ground pin.
3. SDA: Serial Data Input/Output pin for I2C communication.
4. SCL: Serial Clock Input pin for I2C communication.
5. SQW/INT: Square Wave/Interrupt output pin; can provide a square wave output or generate an interrupt.
6. X1: Connection for the external crystal oscillator (typically 32.768 kHz).
7. X2: Connection for the external crystal oscillator (typically 32.768 kHz).
8. VBat: Battery backup pin, used to connect a backup battery for maintaining time during power loss.
The DS1308U-33+T is commonly used in applications requiring accurate timekeeping, such as clocks, timers, and various embedded systems.

Manufacturer

The DS1308U-33+T is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated was known for designing and manufacturing a wide range of analog and mixed-signal integrated circuits (ICs). The company focused on providing innovative solutions for various applications, including power management, signal processing, and data conversion, primarily targeting industries like telecommunications, automotive, medical, and industrial automation. It is recognized for its commitment to quality and performance in its semiconductor products.

Application

The DS1308U-33+T is a real-time clock (RTC) chip commonly used in applications such as timekeeping in embedded systems, microcontrollers, and electronic devices. It is suitable for battery-powered devices, data loggers, alarms, and timers. Its features support applications requiring accurate time tracking and low power consumption, making it ideal for industrial automation, consumer electronics, and telecommunications systems.

Equivalent

The DS1308U-33+T is a real-time clock (RTC) chip. Equivalent products include:
1. DS1307 - Similar RTC with I2C interface.
2. MCP7940N - RTC with EEPROM and battery backup.
3. PCF8563 - Low-power RTC with I2C interface.
4. M41T00 - RTC with I2C interface and battery backup.
These alternatives may vary in features, voltage, and interface, so review datasheets for specific requirements.

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