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ATMEGA8U2_14 Datasheet, PDF (1/310 Pages) ATMEL Corporation – 125 Powerful Instructions – Most Single Clock Cycle Execution | |||
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Features
⢠High Performance, Low Power AVR® 8-Bit Microcontroller
⢠Advanced RISC Architecture
â 125 Powerful Instructions â Most Single Clock Cycle Execution
â 32 x 8 General Purpose Working Registers
â Fully Static Operation
â Up to 16 MIPS Throughput at 16 MHz
⢠Non-volatile Program and Data Memories
â 8K/16K/32K Bytes of In-System Self-Programmable Flash
â 512/512/1024 EEPROM
â 512/512/1024 Internal SRAM
â Write/Erase Cycles: 10,000 Flash/ 100,000 EEPROM
â Data retention: 20 years at 85ï°C/ 100 years at 25ï°C(1)
â Optional Boot Code Section with Independent Lock Bits
In-System Programming by on-chip Boot Program hardware-activated after
reset
True Read-While-Write Operation
â Programming Lock for Software Security
⢠USB 2.0 Full-speed Device Module with Interrupt on Transfer Completion
â Complies fully with Universal Serial Bus Specification REV 2.0
â 48 MHz PLL for Full-speed Bus Operation : data transfer rates at 12 Mbit/s
â Fully independant 176 bytes USB DPRAM for endpoint memory allocation
â Endpoint 0 for Control Transfers: from 8 up to 64-bytes
â 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
â Suspend/Resume Interrupts
â Microcontroller reset on USB Bus Reset without detach
â USB Bus Disconnection on Microcontroller Request
⢠Peripheral Features
â One 8-bit Timer/Counters with Separate Prescaler and Compare Mode (two 8-bit
PWM channels)
â One 16-bit Timer/Counter with Separate Prescaler, Compare and Capture Mode
(three 8-bit PWM channels)
â USART with SPI master only mode and hardware flow control (RTS/CTS)
â Master/Slave SPI Serial Interface
â Programmable Watchdog Timer with Separate On-chip Oscillator
â On-chip Analog Comparator
â Interrupt and Wake-up on Pin Change
⢠On Chip Debug Interface (debugWIRE)
⢠Special Microcontroller Features
â Power-On Reset and Programmable Brown-out Detection
â Internal Calibrated Oscillator
â External and Internal Interrupt Sources
â Five Sleep Modes: Idle, Power-save, Power-down, Standby, and Extended Standby
⢠I/O and Packages
â 22 Programmable I/O Lines
â QFN32 (5x5mm) / TQFP32 packages
⢠Operating Voltages
â 2.7 - 5.5V
⢠Operating temperature
â Industrial (-40°C to +85°C)
⢠Maximum Frequency
â 8 MHz at 2.7V - Industrial range
â 16 MHz at 4.5V - Industrial range
Note: 1. See âData Retentionâ on page 6 for details.
8-bit
Microcontroller
with
8/16/32K Bytes
of ISP Flash
and USB
Controller
ATmega8U2
ATmega16U2
ATmega32U2
7799EâAVRâ09/2012
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