| Price | $2 |
|---|---|
| Category | Microcontrollers |
| Availability | In stock |
| Delivery | Shipped across Lebanon, or collect from the lab |
A tiny 8051 microcontroller on a breakout the size of a stamp. The STC15F104W is an enhanced 1T core that runs six to seven times faster than a classic 8051 at the same clock, with 4 KB of flash, 128 bytes of RAM and an internal RC oscillator adjustable from 5 to 35 MHz - so no crystal is needed. Its six configurable I/O pins each drive 20 mA, enough for an LED direct from the pin. A 5V part with no ADC, for small dedicated control jobs and cheap 8051 practice.
Key features
- Enhanced 1T 8051 core - 6-7x a standard 8051 at the same clock
- 4 KB flash, 128 bytes RAM, SOP-8 package
- Internal RC oscillator, 5-35 MHz - no crystal needed
- 6 configurable I/O pins, 20 mA drive each
- Runs on 3.8-5.5V - a 5V part, not a 3.3V one
- No ADC and no hardware UART (software UART on P3.0/P3.1)
- Programmed over serial with the free STC-ISP tool
- Breakout carries a button, an LED and 2 x 4 header pads
Details
Specifications
| Model | STC15F104W (SOP-8) on a breakout board |
|---|---|
| Core | Enhanced 1T 8051 |
| Flash memory | 4 KB |
| SRAM | 128 bytes |
| Clock speed | 5-35 MHz, internal RC oscillator |
| Operating voltage | 3.8-5.5V |
| Digital I/O | 6 configurable pins |
| Drive current | 20 mA per pin (keep the chip total under 70 mA) |
| Timers | 2 x 16-bit |
| Interrupts | 8 sources, plus watchdog timer |
| Analog inputs | None - no ADC on this part |
| Programming | Serial ISP over P3.0 / P3.1 (STC-ISP tool) |
