DS1742W-120

The DS1742W-120 is a real-time clock (RTC) with an integrated temperature-compensated crystal oscillator, designed for battery-backed applications. It features a serial interface for communication, allowing easy integration into microcontroller systems. The device provides timekeeping functions with a calendar that includes leap year functionality and can operate in both 12-hour and 24-hour formats.
Key specifications include a wide operating voltage range, typically from 2.0V to 5.5V, and low power consumption, making it suitable for portable devices. The DS1742W-120 also offers a non-volatile memory option for storing user data, which is retained even during power outages.
Additionally, it includes alarm functions and various programmable interrupts to facilitate time-based events. Its compact size and reliable performance make it ideal for applications such as consumer electronics, automotive systems, and industrial automation. Overall, the DS1742W-120 is a versatile component for projects requiring precise timekeeping and data storage.

The DS1742W-120 is a real-time clock (RTC) with a built-in battery backup and includes several key features:
1. Timekeeping Accuracy: Maintains accurate time with a typical drift of ±2 minutes per year.
2. Battery Backup: Integrated lithium battery ensures continuous timekeeping during power outages.
3. Data Storage: Offers 64 bytes of RAM for non-volatile data storage, retaining information even without power.
4. Timekeeping Functionality: Tracks time and date including seconds, minutes, hours, day, date, month, and year, with leap year compensation.
5. Digital Interface: Communicates via a serial interface, supporting both I2C and SPI protocols.
6. Low Power Consumption: Designed for low power applications, making it suitable for battery-powered devices.
7. Temperature Compensation: Features temperature compensation for enhanced accuracy.
8. Programmable Alarm: Includes programmable alarms for time-sensitive applications.
Overall, the DS1742W-120 is ideal for applications requiring reliable timekeeping and memory capabilities in a compact form factor.

The DS1742W-120 is available in a 28-pin dual in-line package (DIP).

The DS1742W-120 is a real-time clock (RTC) with an integrated non-volatile static RAM. It features a 28-pin DIP package.
Pin Count: 28
Key Functions:
1. Power Supply (Vcc, GND): Supplies power to the device and ground reference.
2. Timekeeping Functions: Includes pins for timekeeping signals (e.g., oscillator output).
3. Data Interface: Provides a 2-wire I2C interface (SDA for data, SCL for clock) for communication with microcontrollers.
4. Control Pins: Includes a pin for enabling/disabling the oscillator.
5. Non-volatile RAM: Dedicated pins for interfacing with the static RAM, which retains data during power loss.
This device is commonly used in applications requiring precise timekeeping and data storage, such as in computing and embedded systems.

The DS1742W-120 is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated is a semiconductor company known for designing and manufacturing a wide range of integrated circuits (ICs) and solutions for various applications, including analog, mixed-signal, and digital signal processing. The company focuses on markets such as automotive, industrial, healthcare, communications, and consumer electronics. Their products are widely used in applications requiring precise timing, power management, signal processing, and data conversion.

The DS1742W-120 is a real-time clock (RTC) with a built-in battery backup, primarily used in applications requiring accurate timekeeping. Common application areas include industrial automation, telecommunications, consumer electronics, medical devices, and computer systems. It is also utilized in embedded systems for managing time-related functions in portable devices and data logging.

Equivalent products to the DS1742W-120 chip include the DS1741, DS1742, and DS1743 series from Dallas Semiconductor (now part of Maxim Integrated). These chips offer similar real-time clock (RTC) functionalities with varying specifications and features. Be sure to check specific datasheets for detailed comparisons to ensure compatibility with your application.