80C550 Microcontroller Technical Summary

Overview

The Philips 8XC550 is a high-performance microcontroller fabricated using Philips' advanced high-density CMOS technology. This technology combines the speed and density advantages of HMOS with the low-power benefits of CMOS, making it ideal for power-sensitive applications. The microcontroller features an epitaxial substrate that minimizes latch-up sensitivity, ensuring robust performance in demanding environments. The 8XC550 family includes ROM (83C550), EPROM (87C550), and ROMless (80C550) variants, providing flexibility for different development and production needs.

Features

• 80C51-Based Architecture: The microcontroller is built on the widely adopted 80C51 architecture, ensuring compatibility with a vast ecosystem of tools and software.
• Memory Options:
  • 4k × 8 EPROM (87C550) or ROM (83C550)
  • 128 × 8 RAM
• Analog-to-Digital Conversion: Eight channels of 8-bit A/D conversion for interfacing with analog sensors and signals.
• Timers and Counters: Two 16-bit counter/timers for precise timing and event counting.
• Watchdog Timer: Enhances system reliability by resetting the microcontroller in case of software failures.
• Communication Interface: Full-duplex serial channel for UART-based communication.
• Boolean Processor: Supports bit-level operations for efficient control logic implementation.
• Memory Addressing: Capable of addressing up to 64k ROM and 64k RAM.
• Power Control Modes:
  • Idle mode for reduced power consumption during inactivity.
  • Power-down mode for minimal power usage when the system is dormant.
• Compatibility: CMOS and TTL compatible, ensuring seamless integration with a wide range of digital logic families.
• Operating Speed: One speed range at V_CC = 5V ±10%, supporting frequencies from 3.5 to 16MHz.
• Temperature Range: Available in extended temperature ranges for industrial and automotive applications.
• Package Options: Includes OTP (One-Time Programmable) package variants for cost-effective production.

Applications

The 80C550 microcontroller is designed for a broad range of embedded applications, including but not limited to:

• Industrial Control Systems: Automation, process control, and monitoring systems benefit from its robust performance and analog interfacing capabilities.
• Consumer Electronics: Used in appliances, remote controls, and other devices requiring low-power operation and reliable control.
• Automotive Systems: Suitable for engine control units, dashboard displays, and other in-vehicle electronics due to its extended temperature range.
• Medical Devices: Provides precise timing and analog signal processing for portable and stationary medical equipment.
• Communication Devices: The full-duplex serial channel enables UART-based communication in modems, routers, and other networking equipment.

Electrical Characteristics

Absolute Maximum Ratings

• Supply Voltage (V_CC): 6.6V
• Input Voltage (V_IN): V_SS - 0.5V to V_CC + 0.5V
• Operating Temperature Range:
  • Commercial: 0°C to +70°C
  • Industrial: -40°C to +85°C
• Storage Temperature Range: -65°C to +150°C

Recommended Operating Conditions

• Supply Voltage (V_CC): 5V ±10%
• Clock Frequency: 3.5MHz to 16MHz
• Input High Voltage (V_IH): 2.0V min (TTL), 0.7V_CC min (CMOS)
• Input Low Voltage (V_IL): 0.8V max (TTL), 0.3V_CC max (CMOS)

Package Information

Ordering Information

• P80C550EBP: ROMless, 0°C to +70°C, Plastic Dual In-Line Package (DIP), 3.5 to 16MHz
• P83C550EBP: ROM, 0°C to +70°C, Plastic DIP, 3.5 to 16MHz
• P87C550EBP: EPROM, 0°C to +70°C, Plastic DIP, 3.5 to 16MHz
• P80C550EBA: ROMless, 0°C to +70°C, Plastic Leaded Chip Carrier (PLCC), 3.5 to 16MHz
• P83C550EBA: ROM, 0°C to +70°C, PLCC, 3.5 to 16MHz
• P87C550EBA: EPROM, 0°C to +70°C, PLCC, 3.5 to 16MHz
• P80C550EFA: ROMless, -40°C to +85°C, PLCC, 3.5 to 16MHz
• P83C550EFA: ROM, -40°C to +85°C, PLCC, 3.5 to 16MHz
• P87C550EFA: EPROM, -40°C to +85°C, PLCC, 3.5 to 16MHz

Package Dimensions

• Plastic Dual In-Line Package (DIP): SOT129-1
• Plastic Leaded Chip Carrier (PLCC): SOT187-2

Conclusion

The 80C550 microcontroller from Philips is a versatile and high-performance solution for embedded systems requiring low power consumption, robust analog interfacing, and reliable operation across a wide temperature range. Its 80C51-based architecture ensures compatibility with a vast array of development tools and legacy code, while its advanced CMOS technology delivers the speed and efficiency needed for modern applications. Whether used in industrial, automotive, consumer, or medical applications, the 80C550 provides a dependable and feature-rich platform for system designers.