ATXMEGA128A1-C7U Atmel, ATXMEGA128A1-C7U Datasheet - Page 19
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ATXMEGA128A1-C7U
Manufacturer Part Number
ATXMEGA128A1-C7U
Description
MCU AVR 128K FLASH 1.6V 100VFBGA
Manufacturer
Atmel
Series
AVR® XMEGAr
Datasheet
1.ATAVRONEKIT.pdf
(113 pages)
Specifications of ATXMEGA128A1-C7U
Core Processor
AVR
Core Size
8/16-Bit
Speed
32MHz
Connectivity
EBI/EMI, I²C, IrDA, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
78
Program Memory Size
128KB (64K x 16)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
1.6 V ~ 3.6 V
Data Converters
A/D 16x12b, D/A 4x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-VFBGA
Processor Series
XMEGA
Core
AVR
Data Bus Width
8 bit, 16 bit
Data Ram Size
8 KB
Interface Type
SPI, TWI, USART
Maximum Clock Frequency
32 MHz
Number Of Programmable I/os
78
Number Of Timers
8
Operating Supply Voltage
2.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATAVRISP2, ATAVRONEKIT, ATQT600
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
10. System Clock and Clock options
10.1
10.2
8067M–AVR–09/10
Features
Overview
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XMEGA A1 has an advanced clock system, supporting a large number of clock sources. It incor-
porates both integrated oscillators, external crystal oscillators and resonators. A high frequency
Phase Locked Loop (PLL) and clock prescalers can be controlled from software to generate a
wide range of clock frequencies from the clock source input.
It is possible to switch between clock sources from software during run-time. After reset the
device will always start up running from the 2 Mhz internal oscillator.
A calibration feature is available, and can be used for automatic run-time calibration of the inter-
nal 2 MHz and 32 MHz oscillators. This reduce frequency drift over voltage and temperature.
A Crystal Oscillator Failure Monitor can be enabled to issue a Non-Maskable Interrupt and
switch to internal oscillator if the external oscillator fails.
cipal clock system in XMEGA A1.
Fast start-up time
Safe run-time clock switching
Internal Oscillators:
External clock options
PLL with internal and external clock options with 1 to 31x multiplication
Clock Prescalers with 1 to 2048x division
Fast peripheral clock running at 2 and 4 times the CPU clock speed
Automatic Run-Time Calibration of internal oscillators
Crystal Oscillator failure detection
– 32 MHz run-time calibrated RC oscillator
– 2 MHz run-time calibrated RC oscillator
– 32.768 kHz calibrated RC oscillator
– 32 kHz Ultra Low Power (ULP) oscillator with 1 kHz ouput
– 0.4 - 16 MHz Crystal Oscillator
– 32 kHz Crystal Oscillator
– External clock
Figure 10-1 on page 20
XMEGA A1
shows the prin-
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