ATXMEGA16A4-CU Atmel, ATXMEGA16A4-CU Datasheet - Page 236
ATXMEGA16A4-CU
Manufacturer Part Number
ATXMEGA16A4-CU
Description
MCU AVR 16+4KB FLASH 49VFBGA
Manufacturer
Atmel
Series
AVR® XMEGAr
Specifications of ATXMEGA16A4-CU
Core Processor
AVR
Core Size
8/16-Bit
Speed
32MHz
Connectivity
I²C, IrDA, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
34
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
1.6 V ~ 3.6 V
Data Converters
A/D 12x12b, D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
49-VFBGA
Processor Series
ATXMEGA16x
Core
AVR8
Data Bus Width
8 bit, 16 bit
Data Ram Size
2 KB
Interface Type
I2C/SPI/USART
Maximum Clock Frequency
32 MHz
Number Of Programmable I/os
34
Number Of Timers
5
Operating Supply Voltage
1.6 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
On-chip Adc
12-ch x 12-bit
On-chip Dac
2-ch x 12-bit
For Use With
ATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMRATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPI
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
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8077H–AVR–12/09
Figure 21-1. USART Block Diagram
The Clock Generation logic has a fractional baud rate generator that is able to generate a wide
range of USART baud rates. It also includes synchronization logic for external clock input in syn-
chronous slave operation.
The Transmitter consists of a single write buffer (DATA), a shift register, Parity Generator and
control logic for handling different frame formats. The write buffer allows continuous data trans-
mission without any delay between frames.
The Receiver consists of a two level FIFO receive buffer (DATA), and a shift register. Data and
clock recovery units ensure robust synchronization and noise filtering during asynchronous data
reception. It includes frame error, buffer overflow and parity error detection.
When the USART is set in Master SPI compliant mode, all USART specific logic is disabled,
leaving the transmit and receive buffers, shift registers, and Baud Rate Generator enabled. Pin
control and interrupt generation is identical in both modes. The registers are used in both
modes, but the functionality differs for some control settings.
An IRCOM Module can be enabled for one USART to support IrDA 1.4 physical compliant pulse
modulation and demodulation for baud rates up to 115.2 kbps. For details refer to
”IRCOM - IR Communication Module” on page 256
CTRLA
TRANSMIT SHIFT REGISTER
RECEIVE SHIFT REGISTER
BAUD RATE GENERATOR
FRACTIONAL DEVIDE
DATA (Transmit)
DATA (Receive)
BSEL [H:L]
for details.
CTRLB
GENERATOR
SYNC LOGIC
RECOVERY
RECOVERY
CHECKER
PARITY
CLOCK
PARITY
DATA
OSC
Clock Generator
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
Transmitter
PIN
PIN
PIN
TX
RX
Receiver
CTRLC
XMEGA A
XCK
RxD
TxD
Section 22.
236
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