DS1500WE – MAXIM INTEGRATED

Overview

The Maxim Integrated DS1500WE is a robust Real-Time Clock (RTC) and Calendar IC designed for applications demanding precise timekeeping and calendar functions. Its parallel interface offers direct access to time and date registers, crucial for systems requiring rapid data retrieval. A key design consideration is managing the trade-off between power consumption during timekeeping and the speed of parallel data access; while the parallel interface is fast, it inherently draws more current than serial alternatives, necessitating careful power budgeting in battery-backed or low-power designs.

Key Features

• 256B NVSRAM for data retention
• Parallel interface for direct register access
• Alarm and watchdog timer functionalities
• Leap year compensation and Y2K compliance
• Square wave output for clock generation
• 32-LFSOP package (18.40mm width)

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

• Data logging systems requiring timestamp accuracy
• Industrial control systems with event scheduling
• Point-of-sale terminals for transaction logging
• Embedded systems with critical operational timing