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The STC15F104W-35I-SOP is a microcontroller manufactured by STC Micro. Below are the factual specifications, descriptions, and features of this component:

Manufacturer:

STC Micro (STC)

Part Number:

STC15F104W-35I-SOP

Package:

SOP-8 (Small Outline Package, 8 pins)

Core Architecture:

8051-compatible enhanced 1T core (single-clock cycle execution)

Operating Frequency:

Up to 35 MHz

Flash Memory:

4 KB (for program storage)

SRAM:

256 bytes

EEPROM:

None (but Flash can simulate EEPROM)

GPIO Pins:

6 I/O pins (configurable as digital input/output)

Timers:

• 2 × 16-bit timers (Timer0 & Timer2)
• 1 × watchdog timer

Interrupts:

Supports multiple interrupt sources

Communication Interfaces:

• UART (software-configurable)
• No built-in SPI or I2C (can be implemented via GPIO)

ADC:

None

PWM:

None

Operating Voltage:

3.3V – 5.5V

Operating Temperature Range:

-40°C to +85°C (Industrial grade)

Power Consumption:

Low-power modes available (Idle & Power-down)

Programming:

In-system programmable (ISP) via serial UART

Key Features:

• 1T 8051 core (faster than traditional 12-clock 8051)
• High-speed operation (35 MHz max)
• Wide voltage range (3.3V – 5.5V)
• Built-in RC oscillator (no external crystal needed)
• Strong anti-interference capability
• Industrial-grade reliability

Applications:

• Small embedded systems
• Consumer electronics
• Industrial control
• LED displays
• Simple automation

This microcontroller is commonly used in cost-sensitive applications where minimal I/O and moderate processing power are sufficient.

(Note: Always refer to the latest datasheet from STC for detailed specifications.)