DS1338Z-33

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DS1338Z-33

IC RTC CLK/CALENDAR I2C 8SOIC

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  • Mfr. Partie #DS1338Z-33
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  • Fiche de données
  • En stock7288

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Spécifications

Part Status Obsolete
DigiKey Programmable Not Verified
Type Clock/Calendar
Features Leap Year, NVSRAM, Square Wave Output
Memory Size 56B
Time Format HH:MM:SS (12/24 hr)
Date Format YY-MM-DD-dd
Interface I2C, 2-Wire Serial
Voltage - Supply 3V ~ 5.5V
Voltage - Supply, Battery 1.3V ~ 3.7V
Current - Timekeeping (Max) 125µA ~ 200µA @ 3.63V ~ 5.5V
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Base Product Number DS1338

Vue d'ensemble

Description

The DS1338Z-33 is a real-time clock (RTC) device from Maxim Integrated, designed to provide accurate timekeeping in various applications. It operates at a supply voltage of 3.3V and features a low-power design, making it suitable for battery-operated devices. The chip includes a 32.768 kHz oscillator, which is critical for maintaining accurate time, and can operate with a backup battery to keep time even when the main power is disconnected.
Key features include a programmable square wave output, an I2C interface for easy communication with microcontrollers, and an integrated alarm function. The DS1338Z-33 can track time down to seconds and is capable of handling leap years, making it reliable for long-term applications.
This RTC is commonly used in applications such as embedded systems, consumer electronics, and industrial devices where precise time and date information is essential. Its compact design and low power consumption make it a popular choice among engineers developing timing solutions.

Features

The DS1338Z-33 is a real-time clock (RTC) from Maxim Integrated that offers a range of features suitable for battery-powered applications. Key features include:
- Real-Time Clock: Accurate timekeeping with calendar functions, including year, month, date, day, hour, minute, and second.
- Power Supply: Operates on a supply voltage of 3.0V to 3.6V.
- Low Power Consumption: Consumes minimal power, making it ideal for energy-efficient applications.
- Battery Backup: Supports a battery backup option, ensuring timekeeping during power outages.
- I²C Interface: Communication via a standard I²C interface for easy integration with microcontrollers.
- Temperature Compensation: Enhanced accuracy over varying temperature conditions.
- Alarm Functions: Integrated alarms for applications requiring time-based events.
- 32.768 kHz Output: Provides a clock output for timing applications.
Overall, the DS1338Z-33 is designed for precision timekeeping in embedded systems, consumer electronics, and various battery-operated devices.

Package

The DS1338Z-33 is packaged in a 16-pin SOIC (Small Outline Integrated Circuit) package. This surface-mount package is designed for efficient space utilization and thermal performance in electronic applications.

Pinout

The DS1338Z-33 is a real-time clock (RTC) with a total of 8 pins. The pin configuration and their functions are as follows:
1. VCC: Supply voltage (3.0V to 5.5V).
2. GND: Ground reference.
3. SDA: Serial Data line for I2C communication.
4. SCL: Serial Clock line for I2C communication.
5. SQW/INT: Square Wave Output or Interrupt output.
6. VBAT: Backup battery input for maintaining time during power loss.
7. OUT: Output for square wave frequency.
8. NC: No connection (not used).
The DS1338Z-33 operates in a low-power mode, making it suitable for battery-powered devices, and features an I2C interface for easy communication with microcontrollers. It also includes programmable square wave output and alarm functions, enhancing its versatility in various applications.

Manufacturer

The DS1338Z-33 is manufactured by Maxim Integrated, a company known for designing and manufacturing analog and mixed-signal semiconductors. Founded in 1983, Maxim Integrated specializes in devices that enhance the performance and efficiency of electronic systems across various applications, including communications, consumer electronics, automotive, and industrial sectors. In 2020, Maxim Integrated was acquired by Analog Devices, Inc., a leading global high-performance analog technology company. The DS1338Z-33 itself is a real-time clock (RTC) device, providing timekeeping functions and features like a battery backup for maintaining accurate time during power outages.

Application

The DS1338Z-33 is a low-power real-time clock (RTC) with integrated oscillator and battery backup. Its application areas include consumer electronics, industrial automation, smart meters, medical devices, and telecommunications. It's commonly used in systems requiring accurate timekeeping, timestamping events, and maintaining clock continuity during power interruptions. Other applications include data loggers, handheld devices, and any system needing a reliable time source.

Equivalent

Equivalent products to the DS1338Z-33 chip include the MCP7940M, MCP79410, and the DS3231. These chips are real-time clock (RTC) devices with similar functionalities, including timekeeping and battery backup features. Always verify specific requirements such as voltage, package type, and additional features before substituting.

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