Overview
The ATmega128A is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. It is designed to provide high performance and low power consumption, making it suitable for a wide range of applications. The microcontroller is part of the ATmega series from Microchip Technology, which was originally developed by Atmel Corporation.
Key Specifications
| Specification | Details |
|---|---|
| Microcontroller Type | 8-bit AVR RISC |
| Flash Memory | 128K bytes (In-System Programmable) |
| EEPROM | 4K bytes |
| SRAM | 4K bytes |
| General Purpose I/O Lines | 53 |
| Operating Voltage | 2.7 - 5.5V |
| Speed Grades | 0 - 16 MHz |
| Package Types | 64-lead TQFP, 64-pad QFN/MLF |
| Instruction Execution | Most instructions executed in a single clock cycle |
| Throughput | Up to 16 MIPS at 16 MHz |
| On-chip Multiplier | 2-cycle Multiplier |
| Memory Endurance | 10,000 Flash/100,000 EEPROM write/erase cycles |
| Data Retention | 20 years at 85°C/100 years at 25°C |
Key Features
- High-performance, low-power AVR 8-bit microcontroller with advanced RISC architecture.
- 133 powerful instructions with most single clock cycle execution.
- 32 general purpose working registers + peripheral control registers.
- Fully static operation.
- On-chip 2-cycle multiplier.
- High endurance non-volatile memory segments.
- In-System Programming by on-chip boot program with True Read-While-Write operation.
- SPI interface for In-System Programming.
- JTAG (IEEE std. 1149.1 compliant) interface with boundary-scan capabilities.
- Extensive on-chip debug support.
- Peripheral features include timer/counters, real-time counter, PWM channels, ADC, serial interfaces, and programmable watchdog timer.
- Power-on reset and programmable brown-out detection.
- Internal calibrated RC oscillator and external and internal interrupt sources.
- Six sleep modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby.
Applications
- Embedded systems requiring high performance and low power consumption.
- Industrial control systems.
- Automotive systems.
- Consumer electronics.
- Medical devices.
- Wireless communication devices.
- Robotics and automation.
Q & A
- What is the ATmega128A microcontroller based on?
The ATmega128A is based on the AVR enhanced RISC architecture. - How much flash memory does the ATmega128A have?
The ATmega128A has 128K bytes of In-System Programmable Flash memory. - What are the operating voltage ranges for the ATmega128A?
The operating voltage ranges for the ATmega128A are 2.7 - 5.5V. - What are the package types available for the ATmega128A?
The ATmega128A is available in 64-lead TQFP and 64-pad QFN/MLF packages. - Does the ATmega128A support In-System Programming?
Yes, the ATmega128A supports In-System Programming by on-chip boot program with True Read-While-Write operation. - What is the maximum throughput of the ATmega128A at 16 MHz?
The maximum throughput of the ATmega128A at 16 MHz is up to 16 MIPS. - How many general purpose I/O lines does the ATmega128A have?
The ATmega128A has 53 general purpose I/O lines. - What is the endurance of the non-volatile memory segments in the ATmega128A?
The non-volatile memory segments have an endurance of 10,000 Flash/100,000 EEPROM write/erase cycles. - Does the ATmega128A support JTAG interface?
Yes, the ATmega128A supports JTAG (IEEE std. 1149.1 compliant) interface with boundary-scan capabilities. - What are the sleep modes available in the ATmega128A?
The ATmega128A has six sleep modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby.
