Overview
The ATmega128A-MUR, produced by Microchip Technology, is a high-performance, low-power 8-bit microcontroller based on the AVR enhanced RISC architecture. This microcontroller is designed for a wide range of applications requiring high processing power, low power consumption, and advanced peripheral features. The ATmega128A is part of the AVR family, known for its efficient instruction set and high throughput, making it suitable for complex embedded systems.
Key Specifications
| Specification | Value |
|---|---|
| Program Memory Size | 128 KB (In-System Programmable Flash) |
| RAM | 4 KB (Internal SRAM) |
| Data EEPROM | 4 KB |
| Pin Count | 64 |
| Operating Voltage Range | 2.7 - 5.5 V |
| Speed Grades | 0 - 16 MHz |
| General Purpose I/O Lines | 53 |
| Package Types | 64-lead TQFP, 64-pad QFN/MLF |
| Write/Erase Cycles (Flash/EEPROM) | 10,000 / 100,000 |
| Data Retention | 20 years at 85°C / 100 years at 25°C |
Key Features
- Advanced RISC Architecture with 133 powerful instructions and most single clock cycle execution.
- 32 x 8 general purpose working registers + peripheral control registers.
- Fully static operation with up to 16 MIPS throughput at 16 MHz.
- On-chip 2-cycle multiplier.
- High endurance non-volatile memory segments: 128 KB Flash, 4 KB EEPROM, 4 KB SRAM.
- True Read-While-Write operation and optional boot code section with independent lock bits.
- SPI interface for in-system programming and JTAG (IEEE std. 1149.1 compliant) interface for boundary-scan and debug support.
- Peripheral features include two 8-bit timer/counters, two expanded 16-bit timer/counters, real-time counter, PWM channels, 8-channel 10-bit ADC, dual programmable serial USARTs, and master/slave SPI serial interface.
- Programmable watchdog timer with on-chip oscillator and on-chip analog comparator.
- Six sleep modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby.
- Software selectable clock frequency and ATmega103 compatibility mode selected by a fuse.
Applications
The ATmega128A-MUR 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.
- Embedded systems requiring high processing power and low power consumption.
Q & A
- What is the program memory size of the ATmega128A-MUR?
The program memory size is 128 KB of In-System Programmable Flash. - How much RAM and EEPROM does the ATmega128A-MUR have?
The ATmega128A-MUR has 4 KB of internal SRAM and 4 KB of EEPROM. - What is the operating voltage range of the ATmega128A-MUR?
The operating voltage range is 2.7 - 5.5 V. - What are the package types available for the ATmega128A-MUR?
The package types are 64-lead TQFP and 64-pad QFN/MLF. - How many general purpose I/O lines does the ATmega128A-MUR have?
The ATmega128A-MUR has 53 general purpose I/O lines. - What is the data retention period for the ATmega128A-MUR's non-volatile memory?
The data retention period is 20 years at 85°C and 100 years at 25°C. - Does the ATmega128A-MUR support in-system programming?
Yes, it supports in-system programming through SPI and JTAG interfaces. - What are the key peripheral features of the ATmega128A-MUR?
The key peripheral features include timer/counters, PWM channels, ADC, USARTs, SPI interface, and an analog comparator. - How many sleep modes does the ATmega128A-MUR have?
The ATmega128A-MUR has six sleep modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby. - Is the ATmega128A-MUR compatible with other AVR models?
Yes, it has ATmega103 compatibility mode selected by a fuse.
