PIN and Block DIAGRAM
What is ATMEGA16U2-MU?
ATMEGA16U2-MU is a CMOS 8-bit microcontroller based on 16KB of ISP flash program memory and USB controller including 22 I/O ports. 16MHz reference frequency is used to operate the AVR core processor. By allowing the system designer to provide optimization to processing speed and power consumption, the ATmega16U2 achieves throughputs approaching 1 MIPS per MHz by implementing powerful instructions in a single clock cycle.
ATMEGA16U2-MU is designed and manufactured with Atmel’s nonvolatile high-density memory technology. The ISP flash in chip let the program to be reprogrammed in-system by using SPI serial interface. the Atmel ATmega16U2 is a well built powerful microcontroller that offers a highly flexible and cost-effective solution to many embedded control applications by merging In-System Self-Programmable Flash with 8-bit RISC CPU on a monolithic chip.
The ATmega16U2 is supported with a full suite of program and system development tools including in-circuit emulators, C compilers, evaluation kits, macro assemblers, and program debugger/simulators.
Pin Configuration
PIN Name | PIN Description |
VCC | Digital supply voltage |
GND | Ground |
AVCC | Supply Voltage Input Pin for all analogue features |
PORT B | 8-bit bi-directional I/O port with internal pull-up resistors |
PORT C | 8-bit bi-directional I/O port with internal pull-up resistors |
PORT D | Serves as analogue inputs to the analogue comparator and as an 8-bit bi-directional I/O port |
D- | Negative Full Speed USB Data Upstream Port |
D+ | Positive Full Speed USB Data Upstream Port |
UGND | USB Ground |
UVCC | USB Pads Internal Regulator Input supply voltage |
UCAP | USB Pads Internal Regulator Output supply voltage |
RESET/PC1/dW | Reset Input |
XTAL1 | Input to the internal clock operating circuit and Input to the inverting Oscillator amplifier. |
XTAL2/PC0 | The output from the inverting Oscillator amplifier if enabled by Fuse. Also used as a generic I/O |
Features
- Low power AVR 8-bit microcontroller with high performance
- Non-volatile data memories and program
- In-system self-programmable flash of 16KB
- EEPROM of 512
- Internal SROM of 512
- 10,000 Flash/ 100,000 EEPROM write/erase cycles
- 20 years at 85°C/ 100 years at 25°C data retention
- Optional Boot Code Section with Independent Lock Bits
- Software security programming lock
- Full Speed 2.0 USB device module
- Complies fully with Universal Serial Bus Specification REV 2.0
- Endpoint 0 for Control Transfers: from 8 up to 64-bytes
- Complies fully with Universal Serial Bus Specification REV 2.0
- Fully independent 176 bytes USB DPRAM for endpoint memory allocation
- Suspend/Resume Interrupts
- Microcontroller reset on USB Bus Reset without detaching
- USB Bus Disconnection on Microcontroller Request
- On-Chip Debug Interface (debugWIRE)
- 22 Programmable I/O Lines
- Five Sleep Modes: Idle, Power-save, Power-down, Standby, and Extended Standby
- Internal Calibrated Oscillator
- Power-On Reset and Programmable Brown-out Detection
- Operates at 2.7 to 5.5 voltages
- Operate at -40°C to +85°C temperature
- The maximum frequency of 8MHz at 2.7V and 16MHz at 4.5V – Industrial Range
EQUIVALENT AND ALTERNATIVES
ATMEGA16U2-MUR, ATMEGA16U2-AU, ATMEGA16U2-AUR;
Applications
There are many applications of ATMEGA16U2-MU in embedded design, development and control systems such as
- consumer electronics
- appliances
- monitoring medical equipment
- circuitry to control processes.
- motor control
- rectification
- power regulation
- DAC applications.
ATMEGA16U2 microcontroller is used to create a bridge between the port of the main processor and USB port of computer on Arduino board.
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