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89C55RD+40C-PLCC Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
89C55RD+40C-PLCCSTC139Yes

89C55RD+40C-PLCC** is a microcontroller manufactured by **STC Microcontroller (STC)**.

The 89C55RD+40C-PLCC is a microcontroller manufactured by STC Microcontroller (STC). Below are the factual specifications, descriptions, and features:

Manufacturer:

STC Microcontroller (STC)

Model:

89C55RD+40C-PLCC

Package Type:

PLCC (Plastic Leaded Chip Carrier)

Core Architecture:

8051-compatible

Key Specifications:

  • Flash Memory: 20KB (for program storage)
  • RAM: 1KB (internal data memory)
  • EEPROM: 2KB (for data storage)
  • Clock Speed: Up to 40MHz
  • Operating Voltage: 3.3V - 5.5V
  • I/O Pins: 32 (4 ports: P0, P1, P2, P3)
  • Timers/Counters: 3 (Timer 0, Timer 1, Timer 2)
  • UART: 1 (Serial communication)
  • Interrupt Sources: 6
  • Watchdog Timer: Yes
  • Power Saving Modes: Idle & Power-Down

Features:

  • In-System Programming (ISP): Supports firmware updates without removing the chip.
  • In-Application Programming (IAP): Allows program memory modification during runtime.
  • High Noise Immunity: Suitable for industrial environments.
  • Low Power Consumption: Optimized for battery-powered applications.
  • Wide Operating Voltage Range: Compatible with 3.3V and 5V systems.

Applications:

  • Industrial control systems
  • Embedded systems
  • Consumer electronics
  • Automation devices

This microcontroller is a cost-effective and versatile solution for embedded applications requiring moderate processing power and memory.

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