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ATMEGA48-20AU

Name: ATMEGA48-20AU
Rating: 4.7 (12 reviews)

IC MCU 8BIT 4KB FLASH 32TQFP

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製造商。部分 #ATMEGA48-20AU
包 32-TQFP
資料表 ATMEGA48-20AU DataSheet
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規格

Package	Bulk
Series	AVR® ATmega
ProductStatus	Active
CoreProcessor	AVR
CoreSize	8-Bit
Speed	20MHz
Connectivity	I²C, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
NumberofI/O	23
ProgramMemorySize	4KB (2K x 16)
ProgramMemoryType	FLASH
EEPROMSize	256 x 8
RAMSize	512 x 8
Voltage-Supply(Vcc/Vdd)	2.7V ~ 5.5V
DataConverters	A/D 8x10b
OscillatorType	Internal
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Surface Mount
Package/Case	32-TQFP

概述

Description

The ATmega48-20AU is a microcontroller from Atmel's AVR family, featuring an 8-bit RISC architecture. It operates at a maximum clock speed of 20 MHz and offers 4 KB of flash memory for program storage, 512 bytes of SRAM, and 256 bytes of EEPROM for non-volatile data. The microcontroller supports various peripherals, including 23 general-purpose I/O pins, three 16-bit timers, and a 10-bit ADC with up to 8 input channels.
The ATmega48-20AU is designed for low power consumption, making it suitable for battery-operated devices. It has multiple operating modes, including sleep modes to conserve energy. The chip is available in a 32-pin TQFP package and is compatible with a range of development tools, including the AVR Studio and Arduino platforms. Its ease of use and versatility make it an excellent choice for applications in embedded systems, robotics, and consumer electronics.

Features

The ATmega48-20AU is an 8-bit microcontroller from the AVR family, featuring:
- Memory: 4 KB of Flash memory, 512 bytes of SRAM, and 256 bytes of EEPROM.
- Speed: Operates at up to 20 MHz.
- I/O Ports: 23 programmable I/O lines.
- Analog: 10-bit ADC (Analog-to-Digital Converter) with 8 channels.
- Timers: 3 timers/counters, including one 16-bit timer and two 8-bit timers.
- Communication: Supports USART, SPI, and I2C interfaces for serial communication.
- Low Power: Multiple low-power modes for energy efficiency.
- Operating Voltage: 1.8V to 5.5V.
- Package Options: Available in 20-pin PDIP, QFN, and MLF packages.
These features make the ATmega48-20AU suitable for a wide range of embedded applications, from simple hobbyist projects to more complex industrial systems.

Package

The ATmega48-20AU is packaged in a TQFP (Thin Quad Flat Package) with 32 pins. It has a body size of 7x7 mm and a pitch of 0.8 mm. This package type is suitable for surface mount technology (SMT) applications.

Pinout

The ATmega48-20AU is an 8-bit AVR microcontroller from Microchip Technology with a total of 32 pins. It features the following pin functions:
- Power Supply: VCC (pins 7, 20) and GND (pins 8, 22) for power and ground connections.
- I/O Ports:
- Port B (pins 1-6): 6 I/O lines (PB0-PB5).
- Port C (pins 23-26): 4 I/O lines (PC0-PC3) and ADC inputs.
- Port D (pins 14-19): 6 I/O lines (PD0-PD5).
- Analog-to-Digital Converter: ADC inputs on Port C.
- Reset: RESET pin (pin 1) for microcontroller reset.
- Crystal Oscillator/Clock: XTAL1 and XTAL2 pins (pins 9, 10) for external oscillator connections.
- Communication Interfaces: Supports USART, SPI, and I2C communication on specific I/O pins.
The ATmega48-20AU operates at a maximum clock frequency of 20 MHz with a voltage range of 1.8V to 5.5V.

Manufacturer

The ATMEGA48-20AU is manufactured by Microchip Technology Inc. Microchip is a publicly traded American company that specializes in developing microcontrollers, mixed-signal, analog, and Flash-IP solutions. Founded in 1989, Microchip serves a wide range of industries, including automotive, industrial, consumer, and communications. The company is known for its comprehensive product portfolio, which includes a variety of microcontrollers and development tools, catering to both low-power and high-performance applications. Microchip is recognized for its focus on innovation and quality, making it a significant player in the semiconductor industry.

Application

The ATmega48-20AU microcontroller is commonly used in various applications, including consumer electronics, automotive systems, industrial automation, and sensor interfacing. Its compact size and low power consumption make it suitable for portable devices, home automation systems, and robotics. Additionally, it's utilized in educational projects and prototyping due to its ease of use and support for various communication protocols like I2C and SPI.

Equivalent

The ATmega48-20AU is an AVR microcontroller from Microchip Technology. Equivalent products include:
1. ATmega48PA - Similar features with slight variations in package options.
2. ATmega88 - Offers more flash memory and similar peripheral features.
3. ATmega168 - Higher memory capacity with similar architecture.
4. ATmega328 - Used in Arduino Uno, with more pins and memory.
Ensure to check datasheets for specific requirements and compatibility.