ATMEGA16U2 Microcontroller：Pinout, Datasheet, Block Diagram

ATMEGA16U2 Pinout

Symbol

ATMEGA16U2 Symbol

Footprint

ATMEGA16U2 Footprint

3D Model

ATMEGA16U2 3D Model

The ATmega16U2 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega16U2 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

Microchip Technology ATMEGA16U2-AU technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology ATMEGA16U2-AU.

• High Performance, Low Power AVR® 8-Bit Microcontroller

• Advanced RISC Architecture

– 125 Powerful Instructions – Most Single Clock Cycle Execution

– 32 x 8 General Purpose Working Registers

– Fully Static Operation

– Up to 16 MIPS Throughput at 16 MHz

• Non-volatile Program and Data Memories

– 8K/16K/32K Bytes of In-System Self-Programmable Flash

– 512/512/1024 EEPROM

– 512/512/1024 Internal SRAM

– Write/Erase Cycles: 10,000 Flash/ 100,000 EEPROM

– Data retention: 20 years at 85C/ 100 years at 25C(1)

– Optional Boot Code Section with Independent Lock Bits In-System Programming by on-chip Boot Program hardware activated after resetting True Read-While-Write Operation

– Programming Lock for Software Security

• USB 2.0 Full-speed Device Module with Interrupt on Transfer Completion

– Complies fully with Universal Serial Bus Specification REV 2.0

– 48 MHz PLL for Full-speed Bus Operation: data transfer rates at 12 Mbit/s

– Fully independent 176 bytes USB DPRAM for endpoint memory allocation

– Endpoint 0 for Control Transfers: from 8 up to 64-bytes

– 4 Programmable Endpoints:

IN or Out Directions

Bulk, Interrupt and IsochronousTransfers

Programmable maximum packet size from 8 to 64 bytes

Programmable single or double buffer

– Suspend/Resume Interrupts

– Microcontroller reset on USB Bus Reset without detaching

– USB Bus Disconnection on Microcontroller Request

• Peripheral Features

– One 8-bit Timer/Counters with Separate Prescaler and Compare Mode (two 8-bit PWM channels)

– One 16-bit Timer/Counter with Separate Prescaler, Compare and Capture Mode (three 8-bit PWM channels)

– USART with SPI master only mode and hardware flow control (RTS/CTS)

– Master/Slave SPI Serial Interface

– Programmable Watchdog Timer with Separate On-chip Oscillator

– On-chip Analog Comparator

– Interrupt and Wake-up on Pin Change

• On-Chip Debug Interface (debugWIRE)

• Special Microcontroller Features

– Power-On Reset and Programmable Brown-out Detection

– Internal Calibrated Oscillator

– External and Internal Interrupt Sources

– Five Sleep Modes: Idle, Power-save, Power-down, Standby, and Extended Standby

• I/O and Packages

– 22 Programmable I/O Lines

– QFN32 (5x5mm) / TQFP32 packages

• Operating Voltages

– 2.7 - 5.5V

• Operating temperature

– Industrial (-40°C to +85°C)

• Maximum Frequency

– 8 MHz at 2.7V - Industrial range

– 16 MHz at 4.5V - Industrial range

ATMEGA16U2 Block Diagram

The ATMEGA16U2 as a low-power CMOS 8-bit microcontroller is full of advantages.

The device is manufactured using Atmel's high-density nonvolatile memory technology. The on-chip ISP Flash allows the program memory to be reprogrammed in-system through an SPI serial interface, by a conventional nonvolatile memory programmer, or by an on-chip Boot program running on the AVR core.

The boot program can use any interface to download the application program in the Application Flash memory. Software in the Boot Flash section will continue to run while the Application Flash section is updated, providing true Read-While-Write operation.

By combining an 8-bit RISC CPU with In-System Self-Programmable Flash on a monolithic chip, the Atmel ATmega16U2 is a powerful microcontroller that provides a highly flexible and cost-effective solution to many embedded control applications.

Microchip Technology Incorporated is a leading provider of smart, connected and secure embedded control solutions. Its easy-to-use development tools and comprehensive product portfolio enable customers to create optimal designs, which reduce risk while lowering total system cost and time to market. The company's solutions serve more than 120,000 customers across the industrial, automotive, consumer, aerospace and defence, communications and computing markets. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality.