8/16-bit Atmel XMEGA Microcontroller
ATxmega128A4U / ATxmega64A4U /
ATxmega32A4U / ATxmega16A4U
Features
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High-performance, low-power Atmel® AVR® XMEGA® 8/16-bit Microcontroller
Nonvolatile program and data memories
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16K - 128KB of in-system self-programmable flash
4K - 8KB boot section
1K - 2KB EEPROM
2K - 8KB internal SRAM
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Peripheral Features
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Four-channel DMA controller
Eight-channel event system
Five 16-bit timer/counters
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Three timer/counters with 4 output compare or input capture channels
Two timer/counters with 2 output compare or input capture channels
High-resolution extensions on all timer/counters
Advanced waveform extension (AWeX) on one timer/counter
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One USB device interface
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USB 2.0 full speed (12Mbps) and low speed (1.5Mbps) device compliant
32 Endpoints with full configuration flexibility
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Five USARTs with IrDA support for one USART
Two Two-wire interfaces with dual address match (I2C and SMBus compatible)
Two serial peripheral interfaces (SPIs)
AES and DES crypto engine
CRC-16 (CRC-CCITT) and CRC-32 (IEEE® 802.3) generator
16-bit real time counter (RTC) with separate oscillator
One twelve-channel, 12-bit, 2msps Analog to Digital Converter
One two-channel, 12-bit, 1msps Digital to Analog Converter
Two Analog Comparators with window compare function, and current sources
External interrupts on all general purpose I/O pins
Programmable watchdog timer with separate on-chip ultra low power oscillator
QTouch® library support
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Capacitive touch buttons, sliders and wheels
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Special microcontroller features
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Power-on reset and programmable brown-out detection
Internal and external clock options with PLL and prescaler
Programmable multilevel interrupt controller
Five sleep modes
Programming and debug interfaces
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PDI (program and debug interface)
I/O and packages
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34 Programmable I/O pins
44 - lead TQFP
44 - pad VQFN/QFN
49 - ball VFBGA
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Operating voltage
1.6 – 3.6V
Operating frequency
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0 – 12MHz from 1.6V
0 – 32MHz from 2.7V
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Atmel-8387H-AVR-ATxmega16A4U-34A4U-64A4U-128A4U-Datasheet_09/2014