ATMEGA88-20MU

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ATMEGA88-20MU

IC MCU 8BIT 8KB FLASH 32VQFN

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規格

Series AVR® ATmega
Part Status Active
DigiKey Programmable Verified
Core Processor AVR
Core Size 8-Bit
Speed 20MHz
Connectivity I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 23
Program Memory Size 8KB (4K x 16)
Program Memory Type FLASH
EEPROM Size 512 x 8
RAM Size 1K x 8
Voltage - Supply (Vcc/Vdd) 2.7V ~ 5.5V
Data Converters A/D 8x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Supplier Device Package 32-VQFN (5x5)
Package / Case 32-VFQFN Exposed Pad
Base Product Number ATMEGA88

概述

Description

The ATmega88-20MU is an 8-bit microcontroller from Atmel's AVR family, designed for embedded applications. It features a 20 MHz maximum clock speed and is housed in a compact 32-pin QFN (Quad Flat No-lead) package. Key specifications include 8 KB of flash memory, 512 bytes of SRAM, and 256 bytes of EEPROM, making it suitable for various applications requiring moderate memory capacities.
The microcontroller supports multiple I/O interfaces, including 23 programmable I/O pins, three timer/counters, and up to 12 analog input channels via its built-in ADC (Analog to Digital Converter). It also includes support for USART, SPI, and I2C for communication with other devices.
The ATmega88-20MU offers low power consumption modes, making it ideal for battery-operated devices. Its architecture allows for efficient programming in C or assembly language, facilitating rapid development and prototyping. The device is widely used in automotive systems, home automation, and various consumer electronics, thanks to its versatile features and ease of integration.

Features

The ATmega88-20MU is an 8-bit AVR microcontroller from Microchip Technology, designed for various embedded applications. Key features include:
1. Flash Memory: 8 KB of in-system programmable Flash.
2. SRAM: 1 KB of SRAM for data storage.
3. EEPROM: 512 bytes for non-volatile data retention.
4. Clock Speed: Operates at up to 20 MHz.
5. I/O Ports: 23 programmable I/O lines.
6. ADC: 10-bit Analog-to-Digital Converter with 8 channels.
7. Timers: Three timers (two 8-bit and one 16-bit) for various timing functions.
8. USART: Universal Synchronous and Asynchronous serial receiver and transmitter for communication.
9. SPI/I2C: Supports Serial Peripheral Interface and TWI (Two Wire Interface).
10. Low Power Modes: Multiple sleep modes for energy-efficient operation.
11. Operating Voltage: 1.8V to 5.5V, making it suitable for battery-operated devices.
12. Package: Available in 32-pin TQFP and 32-pin MLF packages.
These features make the ATmega88-20MU a versatile choice for developing a wide range of electronic projects.

Package

The ATmega88-20MU is packaged in a 32-pin QFN (Quad Flat No-lead) format. This surface-mount package is designed for compact applications, providing a low-profile solution for embedding the microcontroller in various electronic designs.

Pinout

The ATmega88-20MU is a microcontroller from Atmel (now part of Microchip Technology) that features a 28-pin Dual In-line Package (DIP) or a 32-pin QFN/MLF package. The pin count is 28 for the DIP version.
Key functions of the pins include:
- Digital I/O: 23 I/O pins, allowing for input and output operations.
- Analog Input: 8 pins can be used as 10-bit ADC (Analog-to-Digital Converter) inputs.
- Timers: Includes 2 timers (Timer/Counter 0 and 1) for timing and PWM (Pulse Width Modulation) functions.
- Communication Interfaces: Supports USART for serial communication, SPI for synchronous communication, and TWI (I2C) for inter-device connectivity.
- Reset and Crystal Oscillator Pins: Includes a reset pin and pins for connecting an external crystal oscillator for clock generation.
The ATmega88-20MU operates at a maximum clock speed of 20 MHz and is designed for various embedded applications, offering low power consumption and flexibility.

Manufacturer

The ATmega88-20MU is manufactured by Microchip Technology Inc., an American semiconductor company. Founded in 1989, Microchip specializes in embedded control solutions and is best known for its microcontrollers, including the popular PIC and AVR families. The company serves a wide range of industries, including automotive, industrial, consumer electronics, and telecommunications, providing innovative products and solutions for various applications. Microchip is recognized for its commitment to quality and customer support, offering extensive resources for developers and engineers working on embedded systems.

Application

The ATmega88-20MU microcontroller is commonly used in various applications, including:
1. Embedded Systems: For automation and control tasks.
2. Consumer Electronics: In devices like remote controls and home appliances.
3. Robotics: For controlling sensors and motors.
4. IoT Devices: In connectivity solutions and data monitoring.
5. Data Acquisition: For sensor data logging and processing.
6. Prototyping: In educational projects and hobbyist applications.
Its versatility and low power consumption make it suitable for a wide range of projects.

Equivalent

Equivalent products to the ATmega88-20MU include the ATmega168, ATmega328, and ATmega64. These microcontrollers share similar architectural features and pin configurations, allowing for easy substitution in many applications. However, be sure to check specific electrical characteristics and memory sizes to ensure compatibility for your project.

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