F100 model.
80C251 based microcontroller board



















F100 Manual, 
Software and Schematic

























F100 Model Features:
 Intel's 80C251SQ Microcontroller.
 Powerful 16 and 32 bit instruction set.
40 Bit IN/OUT with included:
RS-232 Serial Port.
152K user FLASH.
2K user SRAM.
8K FLASH Monitor.
Size: 2.3" x 2.5" (5.84cm x 6.35cm).

Assembler, Small-C compiler, uploading and FLASH programming software included, upon purchasing any of our boards. All software features can be managed from within a single software program.


With the software included, applications can be easily developed in 3 steps:

1) Edit a program in Assembly or Small-C
2) Assemble or compile the just edited program
3) Send the program's HEX file through the serial port on to the board's SRAM or FLASH.

After the last byte is received, the board's monitor automatically gives control to the just received program.

FLASH Programming Features:
* Upload and Save a program into FLASH.
* Upload, Save and Run a program into FLASH.
* Run a previously Saved program from FLASH.


The assembler that we provide is an assembler for the instruction set native to the 8051
Not to worry... We provide a tutorial on how to easily create programs that will run the instruction set native to the 80C251.

But remember, even if you want to run programs that were created for the instruction set native to the 8051, the 80C251 will execute these programs much faster than the standard 8051.

view a brief description of our own Small C Compiler.

about the 80C251.

The board is designed to allow installation of a 5V Regulator IC. (not included).

Note: Even though not shown on the picture, a MAX232 IC, used for serial port communication, is also installed on the board, it is located under the 40 pin DIP 80C251 IC. All components are installed on the same side of the board.

5V Power Supply and Serial Connector Required.

3 Speeds to Choose from:
To order, just type in the quantity and click on the "Place in Cart" button

F100-11 (11.05 Mhz)
Price $45.00 Qnty:
F100-14 (14.00 Mhz)
Price $47.00 Qnty:
F100-18 (18.00 Mhz)
Price $49.00 Qnty:


Domestic Shipping Cost: $4.00.
International Shipping Cost: $13.00.

About the 80C251:

The standard 8051 it's a great processor, it meets the speed and performance required for most applications, but... there are applications that require higher speed and performance, that's when the 80C251 comes in as a good choice, here's why:

It executes ALL of the instructions native to the 8051, and it EXECUTES them FASTER.

Besides the instructions native to the 8051, the 80C251 has plenty of 8, 16 and 32-bit instructions native to itself, thus providing an easier and more efficient programming and VERY FAST EXECUTION.

Following is a summary of tasks that the 80C251 can accomplish with just 1 instruction, but for which the 8051 takes several assembly instructions to accomplish:

16 bit instructions:
multiplication, division, rotate, logical AND, OR and XOR

16 and 32 bit instructions:
addition, subtraction, increment, decrement, push, pop, compare and data movement.

There are other features that make the 80C251 a very powerful CPU:

512 bytes of internal data RAM, vs 128 bytes for the standard 8051 and 256 for the 80C552, 80C51GB and 8032.

Besides the 2 standard timer/counters (3 for the 80C552, 8032 and 80C51GB), the 80C251 is internally equipped with programmable counter array registers, which are handy for pulse width modulation.

Several 16 and 32 bit registers not found in the standard 8051/52 play an important role in the 80C251 processing speed.

More on the 80C251:
Highlights
Comparison