N82510

Overview

The N82510 is a high-performance, low-power CMOS 8-bit microcontroller manufactured by Rochester Electronics, LLC. It features an enhanced 80C51 core with up to 32KB of in-system programmable Flash memory and 1KB of RAM. The device integrates two full-duplex UARTs, four 16-bit timer/counters, and a six-channel 10-bit ADC. Operating at frequencies up to 40MHz with a supply voltage range of 2.7V to 5.5V, it supports multiple power-saving modes including Idle and Power Down. The MCU includes extensive I/O capabilities and hardware watchdog functionality for robust industrial applications.

Feature Summary

• Integrated dual full-duplex serial communication interfaces supporting standard UART protocols
• In-system programmable non-volatile Flash memory allowing field updates without external programming equipment
• Hardware watchdog timer designed to prevent system lockups during software faults or interference
• Multiple low-power operating modes enabling extended battery life in portable devices

Applications

• Industrial control systems requiring reliable data acquisition and processing
• Smart metering infrastructure for utility monitoring and management
• Consumer electronics appliances with embedded control logic
• Automotive subsystems needing robust fault tolerance and real-time response

Procurement Notes

Verify the manufacturer marking and lot code against official Rochester Electronics documentation to confirm authenticity. Ensure the part number suffix matches the required package type and temperature grade. Request test reports or traceability certificates if the application demands strict quality assurance standards. Confirm that the component meets current RoHS directives before integration into final assemblies.

Selection Notes

Select this component when an 8051-compatible architecture is required with integrated analog-to-digital conversion capabilities. Consider the N82510 for designs needing dual serial ports without external interface chips. Evaluate the available Flash endurance and data retention specifications against long-term storage requirements. Compare pin compatibility with existing PCB layouts to minimize redesign efforts during migration.

Part Context

Rochester Electronics specializes in sourcing and distributing obsolete and hard-to-find semiconors. The N82510 represents a continuation of legacy Intel 80C51 derivatives, providing support for systems where original manufacturers have discontinued production. This component serves as a critical bridge for maintaining existing industrial and commercial equipment without requiring complete platform overhauls.

Replacement Considerations

Direct replacements include the Intel 80C51FN92M and Philips P89V51RD2. Verify pinout compatibility and software register mapping before substitution. Check if alternative packages require level shifting or voltage translation adjustments.