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STC89LE52RC Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
STC89LE52RCSTC1151Yes

STC89LE52RC** is a microcontroller manufactured by **STC Microelectronics**.

The STC89LE52RC is a microcontroller manufactured by STC Microelectronics.

Specifications:

  • Core: 8051 (MCS-51 compatible)
  • Operating Voltage: 3.3V – 5.5V (Low-voltage operation)
  • Clock Speed: Up to 80 MHz (adjustable via software)
  • Flash Memory: 8 KB (for program storage)
  • RAM: 512 bytes
  • EEPROM: None (but supports in-system programming for Flash)
  • I/O Pins: 32 (4 ports: P0, P1, P2, P3)
  • Timers/Counters: 3 (Timer 0, Timer 1, and Timer 2)
  • Serial Communication: 1 UART
  • Interrupt Sources: 8
  • Power Modes: Idle and Power-down modes for low power consumption
  • Watchdog Timer: Yes (WDT for system reset)
  • Operating Temperature: -40°C to +85°C
  • Package: 40-pin PDIP, PLCC, or LQFP

Descriptions:

  • Fully compatible with the 8051 instruction set.
  • Supports ISP (In-System Programming) via serial port (UART).
  • Low-power design suitable for battery-powered applications.
  • High noise immunity and strong anti-interference capabilities.

Features:

  • Low-voltage operation (3.3V – 5.5V).
  • High-speed execution (1 clock per machine cycle, 6-12 times faster than traditional 8051).
  • On-chip RC oscillator (no external crystal required for basic operation).
  • Multiple power-saving modes (Idle and Power-down).
  • Wide operating temperature range for industrial applications.
  • High reliability with watchdog timer and reset circuit.

This microcontroller is commonly used in embedded systems, industrial control, home appliances, and consumer electronics.

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