87366F2-R

Overview

The Nuvoton 87366F2-R is a microcontroller belonging to the standard 8051 product series. It features a 4T/6T/12T 8051 microprocessor core with a maximum operating frequency of 40 MHz and a supply voltage range of 2.4V to 5.5V. The device includes up to 128 KB of application Flash memory, up to 2 KB of embedded SRAM, and configurable Data Flash. Connectivity options consist of one SPI interface (up to 1.25 MHz), two I²C interfaces (up to 400 kHz), and two UARTs. It supports an 8-channel, 10-bit ADC with a sampling rate up to 96 kSPS and operates within an industrial temperature range of -40°C to 85°C.

Feature Summary

• Supports In-System Programming (ISP) for online system updates
• High anti-interference capability with 8 kV ESD and 4 kV EFT ratings
• Integrates a precise 22.1184 MHz internal RC oscillator with 1% accuracy

Applications

• Access control systems and alarms
• Barcode reading equipment
• Multi-computer switchers (KVM)
• Digital telephones and power management devices

Procurement Notes

Verify the specific package variant required, as the series offers LQFP48, PLCC44, PQFP44, TQFP44, and DIP40 options. Confirm that the industrial temperature grade (-40°C to 85°C) meets your environmental specifications. Ensure the selected part number corresponds to the necessary memory capacity and peripheral configuration for your design.

Selection Notes

Select this component for designs requiring traditional 8051 pin compatibility with enhanced industrial robustness. The high ESD/EFT ratings make it suitable for noisy environments. Consider the available package types for PCB layout constraints and verify that the 40 MHz clock speed satisfies the processing requirements of the target application.

Part Context

This model is part of Nuvoton's standard 8051 family, which maintains pin compatibility with traditional 12T 8051 controllers. The series is designed for cost-sensitive applications needing reliable performance in industrial settings. It provides a balance of processing capability, security features, and connectivity for embedded control tasks.

Replacement Considerations

Direct substitutes must match the 8051 architecture, 40 MHz max frequency, and 2.4V-5.5V voltage range. Verify package footprint compatibility if replacing on existing boards. Cross-reference specific memory sizes and peripheral counts to ensure functional parity.