規格
| 屬性 | 價值 |
| Package / Case | Tray |
| Series | AVR® ATmega |
| Part Status | Active |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 16MHz |
| Connectivity | I²C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 53 |
| Program Memory Size | 64KB (32K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 2K x 8 |
| RAM Size | 4K 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 |
概述
Description
The ATmega64A-MU is an 8-bit microcontroller from Microchip’s AVR family, based on the RISC architecture. It features 64KB Flash memory, 4KB SRAM, and 2KB EEPROM, making it suitable for embedded applications requiring moderate processing power and storage.
Key specifications:
- Clock speed: Up to 16MHz
- I/O Pins: 53 programmable pins
- Peripherals: USART, SPI, I²C, ADC (8-channel 10-bit), PWM, timers
- Package: 64-pad QFN (7x7mm)
The -MU suffix denotes the QFN package, optimized for compact designs. It operates at 1.8–5.5V, supporting low-power modes for energy-efficient applications.
Common uses include industrial control, automation, and consumer electronics. Its balance of performance, peripherals, and cost makes it a versatile choice for mid-range projects.
For detailed specs, refer to the ATmega64A datasheet.
Key specifications:
- Clock speed: Up to 16MHz
- I/O Pins: 53 programmable pins
- Peripherals: USART, SPI, I²C, ADC (8-channel 10-bit), PWM, timers
- Package: 64-pad QFN (7x7mm)
The -MU suffix denotes the QFN package, optimized for compact designs. It operates at 1.8–5.5V, supporting low-power modes for energy-efficient applications.
Common uses include industrial control, automation, and consumer electronics. Its balance of performance, peripherals, and cost makes it a versatile choice for mid-range projects.
For detailed specs, refer to the ATmega64A datasheet.
Equivalent
Equivalent products to the ATMEGA64A-MU (TQFP-64 package) include:
- ATMEGA64A-AU (TQFP-64, industrial temp range)
- ATMEGA64-16AU (older version, 16MHz)
- ATMEGA128A-MU (higher flash, same pinout)
- ATMEGA64L-8AU (low-voltage variant)
- ATMEGA64M1 (automotive-focused, differs in peripherals).
Alternatives from other brands:
- STM32F103C8T6 (ARM Cortex-M3, different architecture)
- PIC18F4550 (Microchip, similar specs).
Check pin compatibility and features before substitution.
- ATMEGA64A-AU (TQFP-64, industrial temp range)
- ATMEGA64-16AU (older version, 16MHz)
- ATMEGA128A-MU (higher flash, same pinout)
- ATMEGA64L-8AU (low-voltage variant)
- ATMEGA64M1 (automotive-focused, differs in peripherals).
Alternatives from other brands:
- STM32F103C8T6 (ARM Cortex-M3, different architecture)
- PIC18F4550 (Microchip, similar specs).
Check pin compatibility and features before substitution.
Features
The ATmega64A-MU is an 8-bit AVR microcontroller with:
- 64KB Flash, 2KB EEPROM, and 4KB SRAM
- Up to 16MHz operating frequency
- 53 I/O Pins (4 ports) with programmable pull-ups
- 4 PWM Channels, 8 ADC Channels (10-bit)
- USART, SPI, I²C for serial communication
- JTAG & ISP for programming/debugging
- 4 Timers (2x 8-bit, 2x 16-bit)
- On-chip analog comparator
- Low-power modes (Idle, Power-down, etc.)
- 2.7V–5.5V operating voltage
- 64-lead QFN (MU) package
Suitable for embedded control, industrial, and consumer applications.
- 64KB Flash, 2KB EEPROM, and 4KB SRAM
- Up to 16MHz operating frequency
- 53 I/O Pins (4 ports) with programmable pull-ups
- 4 PWM Channels, 8 ADC Channels (10-bit)
- USART, SPI, I²C for serial communication
- JTAG & ISP for programming/debugging
- 4 Timers (2x 8-bit, 2x 16-bit)
- On-chip analog comparator
- Low-power modes (Idle, Power-down, etc.)
- 2.7V–5.5V operating voltage
- 64-lead QFN (MU) package
Suitable for embedded control, industrial, and consumer applications.
Pinout
The ATMEGA64A-MU is a 64KB Flash microcontroller in a 64-pin QFN package. Key functions include:
- I/O Ports: 53 programmable I/O pins (PORTA–PORTG).
- Communication: USART, SPI, and TWI (I²C) interfaces.
- Timers: Four 8-bit timers and two 16-bit timers with PWM.
- ADC: 8-channel 10-bit ADC.
- Memory: 64KB Flash, 2KB EEPROM, 4KB SRAM.
- JTAG: Supports on-chip debugging.
- External Interrupts: 8 external interrupt sources.
Pins include power (VCC, GND), crystal oscillator (XTAL1/2), reset (RESET), and analog reference (AREF). The QFN-64 package is compact (9x9mm) and surface-mountable.
- I/O Ports: 53 programmable I/O pins (PORTA–PORTG).
- Communication: USART, SPI, and TWI (I²C) interfaces.
- Timers: Four 8-bit timers and two 16-bit timers with PWM.
- ADC: 8-channel 10-bit ADC.
- Memory: 64KB Flash, 2KB EEPROM, 4KB SRAM.
- JTAG: Supports on-chip debugging.
- External Interrupts: 8 external interrupt sources.
Pins include power (VCC, GND), crystal oscillator (XTAL1/2), reset (RESET), and analog reference (AREF). The QFN-64 package is compact (9x9mm) and surface-mountable.
Application
The ATmega64A-MU is an 8-bit microcontroller from Microchip, widely used in embedded systems. Key application areas include:
- Industrial Control: Automation, motor control, and sensor interfacing.
- Consumer Electronics: Home appliances, smart devices, and gaming peripherals.
- Automotive: Dashboard controls, lighting systems, and basic ECU functions.
- Communication: Modems, routers, and serial communication modules.
- Medical Devices: Portable diagnostic equipment and monitoring systems.
- Robotics: Small-scale robotic controllers and servo management.
Its 64KB Flash, 4KB RAM, and versatile peripherals (UART, SPI, ADC) make it suitable for cost-sensitive, low-power embedded designs.
- Industrial Control: Automation, motor control, and sensor interfacing.
- Consumer Electronics: Home appliances, smart devices, and gaming peripherals.
- Automotive: Dashboard controls, lighting systems, and basic ECU functions.
- Communication: Modems, routers, and serial communication modules.
- Medical Devices: Portable diagnostic equipment and monitoring systems.
- Robotics: Small-scale robotic controllers and servo management.
Its 64KB Flash, 4KB RAM, and versatile peripherals (UART, SPI, ADC) make it suitable for cost-sensitive, low-power embedded designs.
Package
The ATMEGA64A-MU is a microcontroller in a 44-pad QFN (Quad Flat No-leads) package. It measures 7x7mm with a 0.5mm pad pitch. This surface-mount package is compact, suitable for space-constrained designs, and provides good thermal performance. The "MU" suffix indicates the QFN variant.
