ATxmega192D3 Atmel Corporation, ATxmega192D3 Datasheet - Page 162
ATxmega192D3
Manufacturer Part Number
ATxmega192D3
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega192D3
Flash (kbytes)
192 Kbytes
Pin Count
64
Max. Operating Frequency
32 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
50
Ext Interrupts
50
Usb Speed
No
Usb Interface
No
Spi
5
Twi (i2c)
2
Uart
3
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
200
Analog Comparators
2
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
16
Eeprom (bytes)
2048
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
18
Input Capture Channels
18
Pwm Channels
18
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
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Manufacturer
Quantity
Price
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ATxmega192D3-AU
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CYPRESS
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101
Company:
Part Number:
ATxmega192D3-AU
Manufacturer:
ATMEL
Quantity:
70
Company:
Part Number:
ATxmega192D3-H
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SQ
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719
Company:
Part Number:
ATxmega192D3-MH
Manufacturer:
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Quantity:
565
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15. RTC - Real Time Counter
15.1
15.2
8210B–AVR–04/10
Features
Overview
•
•
•
•
•
•
•
The Real Time Counter (RTC) is a 16-bit counter, counting reference clock cycles and giving an
event and/or an interrupt request when it reaches a configurable compare and/or top value. The
reference clock is typically generated from a high accuracy crystal of 32.768 kHz, and the design
is optimized for low power consumption. The RTC typically operate in low power sleep modes,
keeping track of time and waking up the device at regular intervals.
The RTC reference clock may be taken from an 32.768 kHz or 1.024 kHz input. Both an external
32.768 kHz crystal oscillator or the 32.768 kHz internal RC oscillator can be selected as clock
source. For details on reference clock selection to the RTC refer to
Register” on page 65
scale down the reference clock before it reaches the Counter.
The RTC can generate both compare and overflow interrupt request and/or events.
Figure 15-1. Real Time Counter overview.
16-bit resolution
Selectable clock reference
Programmable prescaler
1 Compare register
1 Period register
Clear Timer on overflow
Optional Interrupt/ Event on overflow and compare match
– 32.768 kHz
– 1.024 kHz
1.024 kHz
32.768 kHz
in the Clock System section. The RTC has a programmable prescaler to
prescaler
10-bit
16-bit Counter
=
=
16-bit Compare
16-bit Period
Overflow
Compare Match
”RTCCTRL - RTC Control
XMEGA D
162
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