Professional IC Distribution & Technical Solutions

The STC90C516RD+40I is a microcontroller manufactured by STC Micro. Below are the factual specifications, descriptions, and features of the device:

Manufacturer:

STC Micro (STC)

Specifications:

• Core: 8051-compatible
• Operating Voltage: 3.3V – 5.5V
• Clock Speed: Up to 40 MHz
• Program Memory (Flash): 64 KB
• RAM: 1,280 bytes
• EEPROM: 16 KB (optional)
• I/O Pins: 40 (varies by package)
• Timers/Counters: 4 (Timer 0, Timer 1, Timer 2, Watchdog Timer)
• UART: 2 (Serial Ports)
• ADC: None (this model does not include an ADC)
• PWM: 4 channels
• Watchdog Timer: Yes
• Interrupt Sources: 15
• Operating Temperature: -40°C to +85°C
• Package: PDIP-40, LQFP-44, PLCC-44

Descriptions:

• The STC90C516RD+40I is an enhanced 8051-based microcontroller with high-speed execution and low power consumption.
• It features in-system programmable (ISP) flash memory, allowing firmware updates without removing the chip.
• Supports both 3.3V and 5V operation, making it versatile for different applications.
• Includes hardware watchdog timer and power-saving modes for reliability and efficiency.

Features:

• High-Speed 8051 Core: Executes instructions faster than traditional 8051 MCUs.
• Dual UART: Allows simultaneous serial communication.
• In-System Programming (ISP): Flash can be reprogrammed via serial interface.
• Power Management: Supports idle and power-down modes.
• Enhanced Security: Features read/write protection for firmware.
• Wide Operating Voltage Range: Compatible with 3.3V and 5V systems.
• Industrial-Grade Temperature Range: Suitable for harsh environments.

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