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PIC16FA Flash pin 4MHz 8kB Microcontroller Datasheet and Technical Data. Note: The datasheet of PIC16FA Microcontroller and more detailed Features can be found at the bottom of this page. PIC16F87XA 28/40/Pin Enhanced Flash Microcontrollers Devices Included in this Data Sheet: • PIC16FA • PIC16FA • PIC16FA • PIC16FA.

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In case any of the components are not correctly dtasheet correctly, a red cross mark appears near the component. Along with the data holding port registers, there is a set of configuration registers associated with the ports.

PIC16FA: Introduction, Pin Diagram, Pin Description, Features & Datasheet

The data sheet describes in detail the architecture, capabilities and requirements of the part. This is to provide synchronization timing and clock signals to all parts of the micro controller. When converted to time, it dztasheet be a delay of x1us assuming a oscillator frequency of 4Mhz.

Most of the device vendors provide a free asembler for their parts. Under regular circumstances, the program counter increments by one every execution cycle explained later, as of now, consider it as each clock.

Details of the actual reset mechanism and other details will be dealt with later on.

The task of the execution unit, in simple words, is to fetch the instructions pointed to by 16f877s program counter PCunderstand it Decode and execute it. For this first activate the project view by clicking view – project. This 14 bit encoded binary contains the instruction, the scratch pad memory location to be used and the literal value 0xff.


Physically, ports are some of the pins that are seen in the IC package. It will 16v877a all the device details and specifications for end users. For example, if multiplication of two numbers is to be performed in PIC 16Fathere is no direct instruction to do it. Quick start guide on developing smart home skills for voice based control of smart devices using Amazon Alexa.


The resulting change of values in the registers after each operation can be noticed in the watch window. A complete list of instructions and their encoding is given in page of the datasheet. It can also be observed using the simulator for clarification.

To learn about controllers, processors and architectures in a general and abstract manner is tedious, time consuming and at-times dry. This point is the reset vector and pf the first instruction of the steps that are to be done once the controller is reset.

Next step is to define the simulator that we will be using. We can use this pause to make required readings and continue with the simulation.

This is also shown in the image. The working register, commonly referred to as the W reg, is the only scratchpad memory register accessible to the user in the PIC 16Fa. Also, the time period of the square wave is not what the original hardware would produce. The execution pauses when it reaches this step. Upon reset, the program counter points to memory location 0x There are 6 ports for PIC 16fa.

So is the case with microchip. Thus these instructions take two execution datashet to complete. These tasks vary from micro controller to micro controller. A user side view of these tasks can be obtained by analyzing the instruction set of the specific device we are planning to use. You May Also Enjoy A refresher of new C coding features for embedded system developers 2 minute read A refresher of new C coding features included in C99 and C11 for embedded system developers.


The animate step time of ms is the execution frequency for the simulation only! Thereforewhen we are referring to switching a port pin on as in tha air conditioner, it is actually writing data into the corresponding port register.

The animation result as seen in the logic analyzer is shown in fast forward here. The key architectural concepts of the PIC 16fa microcontroller has been discussed. If the assembly or some other relevant files like libraries that are to be added to the project already exist, then add it here. The functionality is somewhat self explanatory 3 level cascade of the previous delay loop.

PIC microcontrollers

Execution of a command can include a wide variety of tasks like moving some data from one RAM location to another, or storing it in a non-volatile EEPROM location, or communicating with an external device like a PC. Thereforeif we have to do the multiplication, we have to write a routine out of the available looping, counting and addition instructions that are available.

It also checks for syntax other possible errors during the process. When studying any electronic device or part, the bible is its datasheet. Now, browse to the location where the project files are to be stored and give your project a name.

PIC16FA-I/P Technical Data

Leave a Comment Your email address will not be published. Note that the port pins can also be individually configured, i. Once we are familiar with the basic concepts of microcontrollers, we can explore the data sheet on our own and discover newer tricks. In realtime, the execution clock is automatically generated from the 16f8777a and is continuous.