N87C5833SF76

Microcontrollers Overview

The Intel N87C5833SF76 is an 8-bit microcontroller based on the MCS-51 architecture, housed in a 44-PLCC surface-mount package. It features 32KB of One-Time Programmable (OTP) program memory and 256 bytes of RAM. The device supports an external oscillator with a maximum speed of 33MHz and provides 32 I/O lines via SIO connectivity. Operating voltage ranges from 4V to 6V, with a commercial temperature range of 0°C to 70°C.

Microcontrollers Feature Summary

• MCS-51 8-bit core architecture
• 32KB OTP program storage
• External oscillator support up to 33MHz
• 32 general-purpose I/O lines

Microcontrollers Applications

• Legacy embedded applications
• Consumer electronics
• Simple industrial controllers
• Legacy automation systems
• Instrumentation requiring MCS-51 compatibility

Microcontrollers Procurement Notes

Verify component status as obsolete before procurement planning. Confirm lead times and availability through authorized distributors. Ensure handling procedures match surface mount requirements for the 44-PLCC package. Validate supply chain sources for genuine Intel components to avoid counterfeits.

Microcontrollers Selection Notes

Select this component for designs requiring legacy MCS-51 software compatibility. Consider the OTP memory constraint for production volumes. Evaluate the 33MHz clock limit against system timing requirements. Verify power supply stability within the 4V to 6V operating range.

Microcontrollers Part Context

Part of the Intel 87C series, this MCU bridges legacy 8051 codebases with modern surface-mount manufacturing. It retains the classic instruction set while offering higher clock speeds than original variants. The 44-PLCC package facilitates automated assembly in compact industrial enclosures.

Microcontrollers Replacement Considerations

Direct substitutes include other Intel 87C51/87C52 derivatives with compatible pinouts. Cross-vendor 8051-compatible MCUs may require firmware adaptation due to peripheral differences. Verify electrical specifications and package dimensions before substitution.