ATxmega32D4 Atmel Corporation, ATxmega32D4 Datasheet - Page 55
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ATxmega32D4
Manufacturer Part Number
ATxmega32D4
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega32D4
Flash (kbytes)
32 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
4
Twi (i2c)
2
Uart
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
12
Adc Resolution (bits)
12
Adc Speed (ksps)
200
Analog Comparators
2
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
4
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
4
Output Compare Channels
14
Input Capture Channels
14
Pwm Channels
14
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATxmega32D4-AU
Manufacturer:
Atmel
Quantity:
123
Part Number:
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Manufacturer:
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Quantity:
20 000
Company:
Part Number:
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Manufacturer:
Maxim
Quantity:
71
Company:
Part Number:
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Manufacturer:
Atmel
Quantity:
1 910
Company:
Part Number:
ATxmega32D4-MH
Manufacturer:
Atmel
Quantity:
1 704
Part Number:
ATxmega32D4-MH
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
6. System Clock and Clock options
6.1
6.2
8210B–AVR–04/10
Features
Overview
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XMEGA has a flexible clock system, supporting a large number of clock sources. It incorporates
both accurate integrated oscillators, and external crystal oscillators and resonators. A high fre-
quency Phase Locked Loop (PLL) and clock prescalers can be used to generate a wide range of
clock frequencies. A calibration feature (DFLL) is available, and can be used for automatic run-
time calibration of the internal oscillators. A Crystal Oscillator Failure Monitor can be enabled to
issue a Non-Maskable Interrupt and switch to internal oscillator if the external oscillator fails.
After reset, the device will always start up running from the 2 MHz internal oscillator. During nor-
mal operation, the System Clock source and prescalers can be changed from software at any
time.
Figure 6-1 on page 56
need to be active at a given time. The clocks to the CPU and peripherals can be stopped using
sleep modes and power reduction registers as described in
page
Fast start-up time
Safe run-time clock switching
Internal Oscillators:
External clock options
PLL with internal and external clock options with 1 to 31x multiplication
Clock Prescalers with 1 to 2048x division
Fast peripheral clock running at 2 and 4 times the CPU clock speed
Automatic Run-Time Calibration of internal oscillators
Crystal Oscillator failure detection
– 32 MHz run-time calibrated RC oscillator
– 2 MHz run-time calibrated RC oscillator
– 32.768 kHz calibrated RC oscillator
– 32 kHz Ultra Low Power (ULP) oscillator with 1 kHz output
– 0.4 - 16 MHz Crystal Oscillator
– 32.768 kHz Crystal Oscillator
– External clock
74.
presents the principal clock system in the XMEGA. All of the clocks do not
”Power Management and Sleep” on
XMEGA D
55