ATXMEGA256A3B-MH Atmel, ATXMEGA256A3B-MH Datasheet - Page 333

MCU AVR 256KB FLASH A3B 64-QFN

ATXMEGA256A3B-MH

Manufacturer Part Number
ATXMEGA256A3B-MH
Description
MCU AVR 256KB FLASH A3B 64-QFN
Manufacturer
Atmel
Series
AVR® XMEGAr
Datasheets

Specifications of ATXMEGA256A3B-MH

Core Processor
AVR
Core Size
8/16-Bit
Speed
32MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
49
Program Memory Size
256KB (128K x 16)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.6 V ~ 3.6 V
Data Converters
A/D 16x12b; D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-MLF®, 64-QFN
Processor Series
ATXMEGA256x
Core
AVR8
Data Bus Width
8 bit, 16 bit
Data Ram Size
16 KB
Interface Type
I2C, SPI, USART
Maximum Clock Frequency
32 MHz
Number Of Programmable I/os
49
Number Of Timers
7
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 bit, 8 Channel
On-chip Dac
12 bit, 2 Channel
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
Other names
ATXMEGA256A3B-MU
ATXMEGA256A3B-MU

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATXMEGA256A3B-MH
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
27.9.3
27.9.4
8077H–AVR–12/09
CTRLA – Control Register A
CTRLB – Control Register B
Table 27-3.
• Bits 2:0 - MUXNEG[2:0]: Analog Comparator Negative Input MUX Selection
These bits select which input to be connected to the negative input of Analog Comparator n,
according to
Table 27-4.
• Bits 7:1 - Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always
write these bits to zero when this register is written.
• Bit 0 – AC0OUT: Analog Comparator Output
Setting this bit makes the output of Analog Comparator 0 available on pin 7 on the same port.
• Bits 7:6 - Res - Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always
write these bits to zero when this register is written.
Bit
+0x05
Read/Write
Initial Value
Bit
+0x04
Read/Write
Initial Value
MUXNEG[2:0]
101
110
111
000
001
010
011
100
101
110
111
Table 27-4 on page
R/W
R
7
0
7
0
-
-
Analog Comparator n Positive Input MUX Selection (Continued)
Analog Comparator n Negative Input MUX Selection
Group Configuration
R/W
R
6
0
6
0
-
-
BANDGAP
SCALER
PIN5
PIN6
PIN0
PIN1
PIN3
PIN5
PIN7
DAC
DAC
R/W
333.
R
5
0
5
0
-
R/W
R
4
0
4
0
-
R/W
R
3
0
3
0
SCALEFAC[5:0]
-
Negative Input MUX Selection
Internal Bandgap Voltage
VCC Voltage Scaler
R/W
R
2
0
2
0
-
DAC Output
DAC Output
Pin 5
Pin 6
Pin 0
Pin 1
Pin 3
Pin 5
Pin 7
R/W
R
1
0
1
0
-
XMEGA A
AC0OUT
R/W
R/W
0
0
0
0
CTRLA
CTRLB
333

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