ATXMEGA256A3B-MH Atmel, ATXMEGA256A3B-MH Datasheet - Page 43

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

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

4.20.2
4.20.3
4.20.4
4.20.5
8077H–AVR–12/09
DEVID1 - MCU Device ID Register 1
DEVID2 - MCU Device ID Register 2
REVID - MCU Revision ID
JTAGUID – JTAG User ID Register
• Bit 7:0 - DEVID0[7:0]: MCU Device ID Byte 1
This byte will always be read as 0x1E. This indicates that the device is manufactured by Atmel
• Bit 7:0 - DEVID[7:0]: MCU Device ID Byte 1
Byte 1 of the device ID indicates the flash size of the device.
• Bit 7:0 - DEVID2[7:0]: MCU Device ID Byte 2
Byte 0 of the device ID indicates the device number.
• Bit 7:4 - Reserved
These bits are reserved and will always read as zero. For compatibility with future devices,
always write these bits to zero when this register is written.
• Bit 3:0 - REVID[3:0]: MCU Revision ID
These bits contains the device revision. 0=A, 1=B and so on.
Bit
+0x03
Read/Write
Initial Value
Bit
+0x04
Read/Write
Initial Value
Bit
+0x01
Read/Write
Initial Value
Bit
+0x02
Read/Write
Initial Value
1/0
1/0
1/0
1/0
R
R
R
R
7
7
7
7
-
1/0
1/0
1/0
1/0
R
R
6
6
-
R
R
6
6
1/0
1/0
R
R
1/0
1/0
5
5
-
R
R
5
5
1/0
1/0
R
R
4
4
-
1/0
1/0
JTAGUID[7:0]
R
R
4
4
DEVID1[7:0]
DEVID2[7:0]
1/0
1/0
R
R
3
3
1/0
1/0
R
R
3
3
1/0
1/0
2
R
2
R
1/0
1/0
R
R
2
2
REVID[3:0]
1/0
1/0
R
R
1
1
1/0
1/0
R
R
1
1
XMEGA A
1/0
1/0
R
R
0
0
1/0
1/0
R
R
0
0
JTAGUID
REVID
DEVID1
DEVID2
43