規格
| 屬性 | 價值 |
| 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) | 1.8V ~ 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 ATmega48PA-AU is an 8-bit microcontroller from Microchip’s AVR family, based on the RISC architecture. It features 4KB Flash, 512B SRAM, and 256B EEPROM, operating at up to 20MHz.
Key peripherals include:
- 23 programmable I/O pins
- 6-channel 10-bit ADC
- 3 timers/counters (including PWM)
- USART, SPI, and I²C for serial communication
The "PA" suffix indicates low-power optimization, while "AU" denotes a TQFP-32 package. It supports 1.8V–5.5V operation, making it suitable for battery-powered and embedded applications.
Common uses include industrial control, consumer electronics, and DIY projects. It’s code-compatible with other ATmega48/88/168 models, easing migration.
For development, tools like Atmel Studio (now Microchip MPLAB X) and AVR-GCC are recommended.
Key peripherals include:
- 23 programmable I/O pins
- 6-channel 10-bit ADC
- 3 timers/counters (including PWM)
- USART, SPI, and I²C for serial communication
The "PA" suffix indicates low-power optimization, while "AU" denotes a TQFP-32 package. It supports 1.8V–5.5V operation, making it suitable for battery-powered and embedded applications.
Common uses include industrial control, consumer electronics, and DIY projects. It’s code-compatible with other ATmega48/88/168 models, easing migration.
For development, tools like Atmel Studio (now Microchip MPLAB X) and AVR-GCC are recommended.
Equivalent
Equivalent products to the ATMEGA48PA-AU include:
- ATMEGA48PA-MU (QFN package)
- ATMEGA48A-AU (similar specs, older revision)
- ATMEGA48P-AU (slightly lower performance)
- ATMEGA88PA-AU (higher flash, pin-compatible)
- ATMEGA168PA-AU (double flash/RAM, pin-compatible)
All are 8-bit AVR microcontrollers with similar features. Verify pinouts and specs for exact compatibility.
- ATMEGA48PA-MU (QFN package)
- ATMEGA48A-AU (similar specs, older revision)
- ATMEGA48P-AU (slightly lower performance)
- ATMEGA88PA-AU (higher flash, pin-compatible)
- ATMEGA168PA-AU (double flash/RAM, pin-compatible)
All are 8-bit AVR microcontrollers with similar features. Verify pinouts and specs for exact compatibility.
Features
The ATmega48PA-AU is an 8-bit AVR microcontroller with the following key features:
- Core: 8-bit AVR, up to 20 MHz clock speed.
- Memory: 4 KB Flash, 512 B SRAM, 256 B EEPROM.
- I/O Pins: 23 programmable I/O lines.
- Peripherals:
- 6-channel 10-bit ADC
- 3 timers (2x 8-bit, 1x 16-bit)
- USART, SPI, I²C (TWI)
- Watchdog timer & brown-out detector
- Power: 1.8V–5.5V operation, low-power idle modes.
- Package: 32-pin TQFP (AU).
- Debugging: On-chip debug (debugWIRE).
Ideal for embedded control, IoT, and low-power applications.
- Core: 8-bit AVR, up to 20 MHz clock speed.
- Memory: 4 KB Flash, 512 B SRAM, 256 B EEPROM.
- I/O Pins: 23 programmable I/O lines.
- Peripherals:
- 6-channel 10-bit ADC
- 3 timers (2x 8-bit, 1x 16-bit)
- USART, SPI, I²C (TWI)
- Watchdog timer & brown-out detector
- Power: 1.8V–5.5V operation, low-power idle modes.
- Package: 32-pin TQFP (AU).
- Debugging: On-chip debug (debugWIRE).
Ideal for embedded control, IoT, and low-power applications.
Pinout
The ATMEGA48PA-AU is a 28-pin microcontroller in a TQFP package. Key functions include:
- I/O Pins: 23 programmable I/O pins (6 for ADC, 6 for PWM).
- Communication: USART, SPI, and I²C interfaces.
- Timers: Three timers (two 8-bit, one 16-bit).
- ADC: 10-bit, 6-channel.
- Memory: 4KB Flash, 512B SRAM, 256B EEPROM.
- Clock: Up to 20MHz (internal/external).
Pins include power (VCC, GND), reset (RESET), and crystal oscillator (XTAL1/2). Compact and versatile for embedded applications.
- I/O Pins: 23 programmable I/O pins (6 for ADC, 6 for PWM).
- Communication: USART, SPI, and I²C interfaces.
- Timers: Three timers (two 8-bit, one 16-bit).
- ADC: 10-bit, 6-channel.
- Memory: 4KB Flash, 512B SRAM, 256B EEPROM.
- Clock: Up to 20MHz (internal/external).
Pins include power (VCC, GND), reset (RESET), and crystal oscillator (XTAL1/2). Compact and versatile for embedded applications.
Manufacturer
The ATMEGA48PA-AU is manufactured by Microchip Technology, a leading American semiconductor company known for its microcontrollers, analog, and Flash-IP solutions. Microchip acquired Atmel (the original developer of the AVR microcontroller line, including the ATmega series) in 2016, integrating it into its product portfolio.
Microchip specializes in embedded control systems, serving industries like automotive, industrial, consumer electronics, and IoT. The ATmega48PA-AU is an 8-bit AVR microcontroller with low power consumption, widely used in cost-sensitive, performance-oriented applications.
Microchip specializes in embedded control systems, serving industries like automotive, industrial, consumer electronics, and IoT. The ATmega48PA-AU is an 8-bit AVR microcontroller with low power consumption, widely used in cost-sensitive, performance-oriented applications.
Application
The ATmega48PA-AU is a versatile 8-bit microcontroller used in various embedded applications, including:
- Consumer Electronics: Remote controls, smart home devices.
- Industrial Control: Sensors, motor control, automation systems.
- Automotive: Dashboard displays, lighting control.
- IoT & Wearables: Low-power sensor nodes, health monitors.
- Hobbyist Projects: Arduino-compatible DIY electronics.
Its features (8KB Flash, 512B EEPROM, 1KB SRAM, 20MHz speed, and multiple I/Os) make it ideal for cost-sensitive, low-power designs.
- Consumer Electronics: Remote controls, smart home devices.
- Industrial Control: Sensors, motor control, automation systems.
- Automotive: Dashboard displays, lighting control.
- IoT & Wearables: Low-power sensor nodes, health monitors.
- Hobbyist Projects: Arduino-compatible DIY electronics.
Its features (8KB Flash, 512B EEPROM, 1KB SRAM, 20MHz speed, and multiple I/Os) make it ideal for cost-sensitive, low-power designs.
Package
The ATMEGA48PA-AU comes in a TQFP-32 package. This is a 32-pin Thin Quad Flat Package with a body size of 7x7mm and a 0.8mm pin pitch. It is surface-mountable, suitable for compact PCB designs, and supports industrial temperature ranges. The "-AU" suffix indicates the TQFP package type.
