ATXMEGA8E5-AU 32MHz SPI 8 Bit Microcontrollers MCU 32TQFP

ATXMEGA8E5-AU 8-Bit Microcontrollers - MCU 32TQFP, IND TEMP GREEN,1.6-3.6V

1.Features

High-performance, low-power Atmel® AVR® XMEGA® 8/16-bit Microcontroller
Nonvolatile program and data memories
8K –32KB of in-system self-programmable flash
2K – 4KB boot section
512Bytes – 1KB EEPROM
1K – 4KB internal SRAM
Peripheral features
Four-channel enhanced DMA controller with 8/16-bit address match
Eight-channel event system
Asynchronous and synchronous signal routing
Quadrature encoder with rotary filter
Three 16-bit timer/counters
One timer/counter with four output compare or input capture channels
Two timer/counter with two output compare or input capture channels
High resolution extension enabling down to 4ns PWM resolution
Waveform extension for control of motor, LED, lighting, H-bridge, high drives, and more
Fault extension for safe and deterministic handling and/or shut-down of external driver
CRC-16 (CRC-CCITT) and CRC-32 (IEEE 802.3) generator
XMEGA Custom Logic (XCL) module with timer, counter and logic functions
Two 8-bit timer/counters with capture/compare and 16-bit cascade mode
Connected to one USART to support custom data frame length
Connected to I/O pins and event system to do programmable logic functions
MUX, AND, NAND, OR, NOR, XOR, XNOR, NOT, D-Flip-Flop, D Latch, RS Latch

Two USARTs with full-duplex and single wire half-duplex configuration
Master SPI mode
Support custom protocols with configurable data frame length up to 256-bit
System wake-up from deep sleep modes when used with internal 8MHz oscillator
One two-wire interface with dual address match (I2C and SMBus compatible)
Bridge configuration for simultaneous master and slave operation
Up to 1MHz bus speed support
One serial peripheral interface (SPI)
16-bit real time counter with separate oscillator and digital correction
One sixteen-channel, 12-bit, 300ksps Analog to Digital Converter with:
Offset and gain correction
Averaging
Over-sampling and decimation
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
Capacitive touch buttons, sliders and wheels
Special microcontroller features
Power-on reset and programmable brown-out detection
Internal and external clock options with PLL
Programmable multilevel interrupt controller
Five sleep modes
Programming and debug interface
PDI (Program and Debug Interface)

I/O and Packages
26 programmable I/O pins
7x7mm 32-lead TQFP
5x5mm 32-lead VQFN
4x4mm 32-lead UQFN
Operating Voltage
1.6 – 3.6V
Operating frequency
0 – 12MHz from 1.6V
0 – 32MHz from 2.7V

2.Pinout and Block Diagram

3.CPU

Features
8/16-bit, high-performance Atmel AVR RISC CPU
142 instructions
Hardware multiplier
32x8-bit registers directly connected to the ALU
Stack in RAM
Stack pointer accessible in I/O memory space
Direct addressing of up to 16MB of program memory and 16MB of data memory
True 16/24-bit access to 16/24-bit I/O registers
Efficient support for 8-, 16-, and 32-bit arithmetic
Configuration change protection of system-critical features
Overview
All AVR XMEGA devices use the 8/16-bit AVR CPU. The main function of the CPU is to execute the code and perform all calculations. The CPU is able to access memories, perform calculations, control peripherals, and execute the program in the flash memory. Interrupt handling is described in a separate section, refer to “Interrupts and Programmable Multilevel Interrupt Controller” on page 28.
Architectural Overview
In order to maximize performance and parallelism, the AVR CPU uses a Harvard architecture with separate memories and buses for program and data. Instructions in the program memory are executed with single-level pipelining. While one instruction is being executed, the next instruction is pre-fetched from the program memory. This enables instructions to be executed on every clock cycle.

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