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The STC89C58RD+40I-PDIP40 is a microcontroller manufactured by STC Micro. Below are its factual specifications, descriptions, and features:

Manufacturer:

• STC Micro

Specifications:

• Core: 8051
• Operating Voltage: 3.5V – 5.5V
• Clock Speed: Up to 40 MHz
• Program Memory (Flash): 58 KB
• RAM: 1280 bytes
• EEPROM: 16 KB (for data storage)
• 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: 8
• Watchdog Timer: Yes
• Power Consumption: Low-power modes (Idle & Power-down)
• Operating Temperature: -40°C to +85°C (Industrial grade)
• Package: PDIP40 (Plastic Dual In-line Package, 40 pins)

Descriptions:

• The STC89C58RD+40I is an enhanced 8051-compatible microcontroller with in-system programmable (ISP) flash memory.
• It supports high-speed operation (up to 40 MHz) and includes additional EEPROM for data storage.
• Suitable for industrial applications due to its wide operating temperature range (-40°C to +85°C).
• Features low EMI (Electromagnetic Interference) design for better noise immunity.

Features:

• 8051-compatible architecture with improved performance.
• On-chip ISP Flash memory (58 KB) for easy firmware updates.
• 16 KB EEPROM for non-volatile data storage.
• Three 16-bit timers/counters for timing and event counting.
• Built-in watchdog timer for system reliability.
• Low-power modes (Idle & Power-down) for energy efficiency.
• Industrial-grade temperature range (-40°C to +85°C).
• PDIP40 package for easy prototyping and breadboarding.

This information is strictly factual and based on the manufacturer's datasheet.