PIC16F722-I/ML
8-bit microcontrollers with 3.5KB Flash, QFN28 package, versatile voltage support
Manufacturer： microchip
series introduction
# PIC16F722-I/ML Product Series Introduction
## 1. Overview
The PIC16F722 - I/ML belongs to Microchip Technology's PIC16F family of 8 - bit microcontrollers. These microcontrollers are designed to offer a balance of performance, features, and cost - effectiveness, making them suitable for a wide range of embedded applications. The "I/ML" in the part number typically indicates a specific package type and temperature range, which we will explore in more detail later.
## 2. Key Features
### 2.1 CPU and Memory
- **CPU Core**: It is based on an enhanced Harvard architecture with a high - performance RISC CPU. This architecture allows for simultaneous access to program and data memory, enabling efficient execution of instructions. The CPU can execute most instructions in a single instruction cycle, which significantly improves the overall processing speed.
- **Program Memory**: The PIC16F722 - I/ML is equipped with 4KB of Flash program memory. Flash memory is non - volatile, meaning that the program code stored in it is retained even when the power is turned off. This allows for easy reprogramming during development and in - field updates if required.
- **Data Memory**: It has 192 bytes of RAM (Random Access Memory) for storing variables and intermediate results during program execution. The RAM provides fast access to data, which is crucial for efficient algorithm implementation.
### 2.2 Peripherals
#### 2.2.1 Timer Modules
- **Timer0**: This is an 8 - bit timer/counter with an 8 - bit prescaler. It can be used for a variety of timing functions, such as generating time delays, measuring time intervals, and driving periodic tasks.
- **Timer1**: A 16 - bit timer/counter that can operate in either timer or counter mode. It has an external clock input option and can be used in applications like real - time clock generation and frequency measurement.
- **Timer2**: An 8 - bit timer/counter with a programmable postscaler. It is often used in conjunction with the PWM (Pulse Width Modulation) module to generate accurate PWM signals.
#### 2.2.2 Analog - to - Digital Converter (ADC)
The PIC16F722 - I/ML features a 10 - bit ADC with up to 8 input channels. This allows the microcontroller to convert analog signals from sensors (such as temperature sensors, light sensors, etc.) into digital values that can be processed by the CPU. The ADC has a fast conversion time, enabling real - time data acquisition.
#### 2.2.3 Pulse Width Modulation (PWM)
It has a PWM module that can generate up to 2 independent PWM outputs. PWM is widely used in applications such as motor control, LED dimming, and power regulation. The duty cycle and frequency of the PWM signals can be easily programmed, providing flexibility in controlling external devices.
#### 2.2.4 Universal Synchronous Asynchronous Receiver Transmitter (USART)
The USART module enables serial communication with other devices. It supports both synchronous and asynchronous communication modes, allowing for easy integration with serial peripherals such as RS - 232 interfaces, Bluetooth modules, and other microcontrollers.
### 2.3 I/O Ports
The PIC16F722 - I/ML has multiple I/O ports, which can be configured as either input or output pins. These ports can be used to interface with external devices such as switches, LEDs, sensors, and actuators. The I/O pins have weak pull - up resistors that can be enabled or disabled, providing additional flexibility in circuit design.
## 3. Package and Temperature Range
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Images for reference
28-VQFN Pkg
28 QFN
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