Overview
The ATMEGA128A-MU is a high-performance, low-power 8-bit microcontroller from Microchip Technology, based on the AVR enhanced RISC architecture. This microcontroller is designed for a wide range of applications requiring advanced processing capabilities, low power consumption, and extensive peripheral support. The ATMEGA128A-MU is part of the ATmega128 family and is known for its robust instruction set, high code efficiency, and fast execution speeds.
Key Specifications
| Specification | Value |
|---|---|
| Program Memory Size | 128 KB (In-System Programmable Flash) |
| EEPROM | 4 KB |
| SRAM | 4 KB |
| Operating Voltage | 2.7 - 5.5 V |
| Maximum Clock Speed | 16 MHz |
| Number of I/O Lines | 53 |
| Package Type | 64-lead TQFP, 64-pad QFN/MLF |
| ADC Resolution | 10-bit (8 single-ended channels, 7 differential channels) |
| Timer/Counters | Two 8-bit, Two 16-bit |
| PWM Channels | 6 (programmable resolution from 2 to 16 bits) |
| Serial Interfaces | Dual Programmable Serial USARTs, Master/Slave SPI, Two-wire Serial Interface |
Key Features
- High-performance AVR 8-bit microcontroller with advanced RISC architecture and 133 powerful instructions.
- Up to 16 MIPS throughput at 16 MHz and on-chip 2-cycle multiplier.
- High endurance non-volatile memory: 128K bytes of In-System Programmable Flash, 4K bytes EEPROM, and 4K bytes SRAM.
- In-System Programming by On-chip Boot Program and True Read-While-Write Operation.
- JTAG (IEEE std. 1149.1 Compliant) Interface with boundary-scan capabilities and extensive on-chip debug support.
- Peripheral features include two 8-bit timer/counters, two expanded 16-bit timer/counters, real-time counter, and 8-channel, 10-bit ADC.
- Programmable watchdog timer, on-chip analog comparator, and six sleep modes.
- Software selectable clock frequency and internal calibrated RC oscillator.
Applications
The ATMEGA128A-MU is versatile and can be used in a variety of applications, including:
- Industrial control systems
- Automotive systems
- Consumer electronics
- Medical devices
- Wireless communication devices
- Robotics and automation
Q & A
- What is the maximum clock speed of the ATMEGA128A-MU?
The maximum clock speed is 16 MHz. - What is the operating voltage range of the ATMEGA128A-MU?
The operating voltage range is 2.7 - 5.5 V. - How much program memory does the ATMEGA128A-MU have?
The ATMEGA128A-MU has 128 KB of In-System Programmable Flash. - What types of serial interfaces are available on the ATMEGA128A-MU?
The ATMEGA128A-MU features dual programmable serial USARTs, master/slave SPI, and a two-wire serial interface. - Does the ATMEGA128A-MU support in-system programming?
Yes, it supports in-system programming by an on-chip boot program and true read-while-write operation. - What is the resolution of the ADC on the ATMEGA128A-MU?
The ADC has a 10-bit resolution with 8 single-ended channels and 7 differential channels. - How many I/O lines does the ATMEGA128A-MU have?
The ATMEGA128A-MU has 53 programmable I/O lines. - What are the package options for the ATMEGA128A-MU?
The ATMEGA128A-MU is available in 64-lead TQFP and 64-pad QFN/MLF packages. - Does the ATMEGA128A-MU have a watchdog timer?
Yes, it has a programmable watchdog timer with an on-chip oscillator. - What are the sleep modes available on the ATMEGA128A-MU?
The ATMEGA128A-MU has six sleep modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby.
