Overview
The ATMEGA128-16AU, produced by Microchip Technology, is a high-performance, low-power AVR® 8-bit microcontroller based on the AVR enhanced RISC architecture. This microcontroller is designed to optimize power consumption versus processing speed, making it highly efficient for various embedded control applications. It features 128Kbytes of In-System Programmable Flash with Read-While-Write capabilities, 4Kbytes EEPROM, and 4Kbytes SRAM. The ATMEGA128-16AU is supported by a full suite of development tools, including C compilers, macro assemblers, program debuggers/simulators, and evaluation kits.
Key Specifications
| Parameter | Specification |
|---|---|
| Microcontroller Type | 8-bit AVR RISC Microcontroller |
| Flash Memory | 128Kbytes In-System Programmable Flash |
| EEPROM | 4Kbytes |
| SRAM | 4Kbytes |
| General Purpose I/O Lines | 53 |
| General Purpose Working Registers | 32 |
| Instruction Execution | Most instructions executed in a single clock cycle |
| Throughput | Up to 16MIPS at 16MHz |
| Timer/Counters | Two 8-bit and two 16-bit Timer/Counters with compare, capture, and PWM modes |
| ADC | 8-channel, 10-bit ADC with optional differential input stage and programmable gain |
| Serial Interfaces | Dual Programmable Serial USARTs, Master/Slave SPI Serial Interface, Byte-oriented Two-wire Serial Interface |
| JTAG Interface | IEEE std. 1149.1 compliant JTAG interface for debugging and programming |
| Operating Temperature | -40°C to +85°C |
| Package Type | 64-pin TQFP |
Key Features
- Advanced RISC Architecture with 133 powerful instructions and most single clock cycle execution.
- High endurance non-volatile memory segments: 128Kbytes Flash, 4Kbytes EEPROM, and 4Kbytes SRAM.
- True Read-While-Write operation and optional Boot Code Section with Independent Lock Bits.
- QTouch® library support for capacitive touch buttons, sliders, and wheels.
- JTAG (IEEE std. 1149.1 Compliant) Interface for boundary-scan and on-chip debug support.
- Peripheral features include Timer/Counters, PWM channels, Real Time Counter, and programmable Watchdog Timer.
- Eight-channel, 10-bit ADC with single-ended and differential channels and programmable gain.
- Six software selectable power saving modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby.
Applications
The ATMEGA128-16AU is versatile and can be used in a wide range of embedded control applications, including:
- Industrial control systems.
- Automotive systems.
- Consumer electronics.
- Medical devices.
- Robotics and automation.
- Wireless and wired communication systems.
Q & A
- What is the primary architecture of the ATMEGA128-16AU microcontroller?
The ATMEGA128-16AU is based on the AVR enhanced RISC architecture.
- How much Flash memory does the ATMEGA128-16AU have?
The ATMEGA128-16AU has 128Kbytes of In-System Programmable Flash memory.
- What is the maximum throughput of the ATMEGA128-16AU at 16MHz?
The maximum throughput is up to 16MIPS at 16MHz.
- Does the ATMEGA128-16AU support capacitive touch interfaces?
Yes, it supports capacitive touch buttons, sliders, and wheels through the QTouch® library.
- What types of serial interfaces are available on the ATMEGA128-16AU?
The microcontroller features dual Programmable Serial USARTs, Master/Slave SPI Serial Interface, and a Byte-oriented Two-wire Serial Interface.
- Is the ATMEGA128-16AU JTAG compliant?
Yes, it is IEEE std. 1149.1 compliant for boundary-scan and on-chip debug support.
- What is the operating temperature range of the ATMEGA128-16AU?
The operating temperature range is -40°C to +85°C.
- How many general purpose I/O lines does the ATMEGA128-16AU have?
The microcontroller has 53 general purpose I/O lines.
- What types of power saving modes are available on the ATMEGA128-16AU?
There are six software selectable power saving modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby.
- Does the ATMEGA128-16AU support real-time counter functionality?
Yes, it includes a Real Time Counter with a separate oscillator.
