ATxmega16A4 Atmel Corporation, ATxmega16A4 Datasheet - Page 99
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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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8.6.2
8.6.3
8077H–AVR–12/09
PRPA/B - Power Reduction Port A/B Register
PRPC/D/E/F - Power Reduction Port C/D/E/F Register
Note:
• Bit 7:3 - Reserved
These bits are reserved and will always be read as zero. For compatibility with future devices,
always write these bits to zero when this register is written.
• Bit 2 - DAC: Power Reduction DAC
Setting this bit stops the clock to the DAC. The DAC should be disabled before shut down.
• Bit 1 - ADC: Power Reduction ADC
Setting this bit stops the clock to the ADC. The ADC should be disabled before shut down.
• Bit 0 - AC: Power Reduction Analog Comparator
Setting this bit stops the clock to the Analog Comparator. The AC should be disabled before shut
down.
• Bit 7 - Reserved
This bit is reserved and will always be read as zero. For compatibility with future devices, always
write this bit to zero when this register is written.
• Bit 6 - TWI: Two-Wire Interface
Setting this bit stops the clock to the Two-Wire Interface. When the bit is cleared the peripheral
should be reinitialized to ensure proper operation.
• Bit 5 - USART1
Setting this bit stops the clock to the USART1. When the bit is cleared the peripheral should be
reinitialized to ensure proper operation.
• Bit 4 - USART0
Setting this bit stops the clock to the USART0. When the bit is cleared the peripheral should be
reinitialized to ensure proper operation.
Bit
+0x01/+0x02
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Disabling of analog modules stops the clock to the analog blocks themselves and not only the
interfaces.
R
7
0
-
R
7
0
-
TWI
R/W
6
0
R
6
0
-
USART1
R/W
5
0
R
5
0
-
USART0
R/W
4
0
R
4
0
-
R/W
SPI
3
0
3
R
0
-
HIRES
R/W
DAC
R/W
2
0
2
0
TC1
R/W
ADC
R/W
1
0
1
0
XMEGA A
TC0
R/W
R/W
0
0
AC
0
0
PRPC/D/E/F
PRPA/B
99
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