ATxmega16A4 Atmel Corporation, ATxmega16A4 Datasheet - Page 22
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ATxmega16A4
Manufacturer Part Number
ATxmega16A4
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega16A4
Flash (kbytes)
16 Kbytes
Pin Count
44
Max. Operating Frequency
32 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
34
Ext Interrupts
34
Usb Speed
No
Usb Interface
No
Spi
7
Twi (i2c)
2
Uart
5
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
12
Adc Resolution (bits)
12
Adc Speed (ksps)
2000
Analog Comparators
2
Resistive Touch Screen
No
Dac Channels
2
Dac Resolution (bits)
12
Temp. Sensor
Yes
Crypto Engine
AES/DES
Sram (kbytes)
3.3
Eeprom (bytes)
1024
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.6 to 3.6
Operating Voltage (vcc)
1.6 to 3.6
Fpu
No
Mpu / Mmu
no / no
Timers
5
Output Compare Channels
16
Input Capture Channels
16
Pwm Channels
16
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATxmega16A4U-AU
Manufacturer:
SAMSUNG
Quantity:
514
Part Number:
ATxmega16A4U-AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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4.5
4.6
8077H–AVR–12/09
Data Memory
Internal SRAM
The Data memory contains the I/O Memory, internal SRAM, optionally memory mapped
EEPROM and external memory if available. The data memory is organized as one continuous
memory section, as shown in
Figure 4-2.
I/O Memory, EEPROM and SRAM will always have the same start addresses for all XMEGA
devices. External Memory (if exist) will always start at the end of Internal SRAM and end at
address 0xFFFFFF.
The internal SRAM is mapped in the Data Memory space, always starting at hexadecimal
address location 0x2000. SRAM is accessed from the CPU by using the load (LD/LDS/LDD) and
store (ST/STS/STD) instructions.
Data Memory Map
Figure 4-2 on page
0xFFFFFF
Start/End
0x000000
0x001000
0x002000
Address
External Memory
Internal SRAM
Data Memory
I/O Memory
EEPROM
(Up to 4 KB)
(Up to 4 KB)
(0 to 16 MB)
22.
XMEGA A
22
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