Maxim Integrated DS1746W-120IND+ Real-Time Clock

The DS1746W-120IND+ is a high-performance, full-featured real-time clock (RTC) module manufactured by Maxim Integrated. This robust RTC module provides a comprehensive timekeeping solution that is ideal for industrial applications and embedded systems which require long-term data retention and a reliable time base.

Featuring a Y2K-compliant calendar, the DS1746W-120IND+ maintains accurate date and time information from the year 1900 through 2099, including corrections for leap years. It integrates a wealth of features into a compact, power-efficient package, making it a versatile choice for a wide range of applications such as networking hardware, industrial machinery, and other systems that require a dependable time reference.

Key Features:

• Integrated Battery: The module comes with a built-in, rechargeable lithium battery that ensures uninterrupted operation for the RTC and SRAM in the event of a power failure.
• Nonvolatile SRAM: With 128k x 8 bits of nonvolatile static RAM, the DS1746W-120IND+ provides ample storage for critical data that must be preserved across power cycles.
• Watchdog Timer: An embedded watchdog timer improves system reliability by initiating a system reset if the microprocessor or software becomes unresponsive.
• Power-fail Write Protection: This feature automatically switches to the battery supply and write-protects the memory when a power failure is detected, preventing data corruption.
• Industrial Temperature Range: The device is designed to operate reliably in extreme conditions, with an industrial temperature range of -40°C to +85°C.

The DS1746W-120IND+ communicates with the host system via a simple multiplexed byte-wide interface, which allows for easy integration into existing designs. It also features a programmable alarm and periodic interrupt functions, which can be utilized to perform regular tasks or wake the system from a low-power state.

Encased in a durable, 34-pin PowerCap Module (PCM) package, the DS1746W-120IND+ is engineered to withstand harsh industrial environments while maintaining precise timekeeping and data integrity. Whether your application is in telecommunications, data acquisition, or process control, the DS1746W-120IND+ is a reliable choice for maintaining accurate time and safeguarding vital data.