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The STC89LE58RD+ is a microcontroller manufactured by STC Microcontroller (STC).

Specifications:

• Core: 8051
• Operating Voltage: 3.3V – 5.5V (Low-voltage operation)
• Flash Memory: 58KB (for program storage)
• RAM: 1280 bytes
• EEPROM: None (but supports in-system programming)
• Clock Speed: Up to 80MHz (with external oscillator)
• I/O Pins: 32 (4 ports: P0, P1, P2, P3)
• Timers: 3 (Timer 0, Timer 1, Timer 2)
• UART: 1 (Serial communication)
• Interrupt Sources: 8
• Watchdog Timer: Yes
• Power Modes: Idle and Power-down modes for low power consumption
• Package: PDIP-40, LQFP-44, PLCC-44

Descriptions:

The STC89LE58RD+ is an enhanced 8051-compatible microcontroller with low-power operation. It features in-system programmable (ISP) flash memory, making firmware updates convenient without removing the chip.

Features:

• Low Power Consumption: Optimized for battery-powered applications.
• High-Speed Operation: Supports up to 80MHz with an external oscillator.
• Enhanced 8051 Core: 12-clock or 6-clock mode selectable.
• ISP Support: Allows programming via serial interface.
• Wide Voltage Range: Operates from 3.3V to 5.5V.
• High Noise Immunity: Robust design for industrial environments.
• Multiple Power-Saving Modes: Reduces energy consumption.

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