PIC16F1825-E/ST

The PIC16F1825-E/ST is an 8 bit microcontroller (MCU) designed by Microchip Technology and manufactured in SMT and QFN packages. It is a PIC16F microcontroller with integrated features such as 10-bit A/D converter and 2 Comparators that are designed to handle a variety of embedded applications. The device is manufactured in both 8-pin widebody and 14-pin narrowbody packages, and is available in a range of temperatures and speeds to meet various application needs.

The PIC16F1825-E/ST is designed to be a cost effective solution for applications requiring low power consumption, versatile peripherals, and easy development. The application field and working principles of this device consists of embedded control, data logging and process control applications, such as motor control, HVAC and security systems.

The device has several input/output (I/O) lines for interfacing with external hardware. It has 8 general purpose I/O (GPIO) pins which are configurable as either inputs or outputs, as well as 3 additional I/O lines for serial communication, timer input and interrupt input. The timer can be used for pulse-width modulation (PWM) applications, and the interrupt input can be used to trigger an interrupt to the CPU when a certain condition occurs.

The internal architecture of the PIC16F1825-E/ST consists of a main CPU and several independent peripheral devices such as the A/D converter, Comparators and Timer. The A/D converter is used to convert analog signals into digital representations. It has 10-bit resolution, and is accurate to 14 effective number of bits, allowing for precision input readings. The Comparators are used as comparator circuits to compare two analog inputs and output either an active low or an active high signal based on whether one input is greater or lower than the other. The Timer is used to generate periodic events and can be configured to generate a single pulse or continuous pulses.

The main CPU is an 8-bit RISC processor that runs at speeds up to 16 MIPS (million instructions per second). It has four registers (A, B, C, and D) and four addressing modes. It can execute instruction sequences of up to 8K bytes of program memory, and can access up to 128 bytes of data memory. The device also incorporates an interrupt controller that allows the CPU to respond to external events.

The PIC16F1825-E/ST is powered by an external voltage supply and typically ranges from 1.8V to 5.5V. It does have the ability to run on lower supply voltages, such as 1.2V, however this is not recommended for all applications. The device is widely used in embedded control, data logging and process control applications due to its low power requirements, integration of peripherals, and easy development. In addtion, the 8-bit RISC processor provides plenty of processing power for such applications with up to 16MIPS.

In conclusion, the PIC16F1825-E/ST is an excellent choice for those looking for an embedded control solution. It has a wide range of features, including 10-bit A/D converter, 2 Comparators, interrupt input and timer. It has low power requirements and an 8-bit RISC processor with up to 16MIPS. The device is available in 8-pin and 14-pin packages, and is suitable for a variety of applications.