DP8570AVX/NOPB

Overview

The DP8570AVX/NOPB is a Timer Clock Peripheral (TCP) manufactured by Texas Instruments. It integrates a real-time clock and calendar system with parallel bus interface capabilities. The device supports date formats of YY-MM-DD-day-of-week and time formats in both 12-hour and 24-hour modes. It features 32 bytes of RAM for data storage and includes a backup switching mechanism to maintain timekeeping during power transitions. Operating within a voltage range of 4.5 V to 5.5 V, it functions reliably between -40°C and +85°C. The component is housed in a PLCC-28 surface-mount package.

Feature Summary

• Integrated Real-Time Clock and Calendar with 32-byte RAM
• Parallel Bus Interface for host communication
• Backup Switching capability for continuous operation
• Supports 12-hour and 24-hour time formats

Applications

• Personal computer systems requiring precise timekeeping
• Industrial control units needing calendar functionality
• Embedded systems with parallel interface requirements

Procurement Notes

Verify the specific suffix 'AVX' against the manufacturer's official documentation to confirm package type and tape-and-reel configuration. Ensure compatibility with existing parallel bus architectures before procurement. Confirm RoHS compliance status through the latest datasheet revision.

Selection Notes

Select this component when a parallel interface is required instead of serial alternatives like I2C or SPI. Ensure the design accommodates the PLCC-28 footprint and operates within the specified 4.5V to 5.5V supply range. Consider the thermal performance for applications operating near the upper temperature limit of +85°C.

Part Context

This part belongs to the DP8570A series of Timer Clock Peripherals. It serves as a legacy solution for systems utilizing parallel interfaces for time synchronization. The 'NOPB' suffix indicates lead-free packaging compliant with environmental standards.

Replacement Considerations

Direct replacements may include other parts from the DP8570 family such as DP8570AV/NOPB, differing primarily in packaging form factor. Verify pinout compatibility when substituting.