ATXMEGA32D4-CU Atmel, ATXMEGA32D4-CU Datasheet - Page 94
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ATXMEGA32D4-CU
Manufacturer Part Number
ATXMEGA32D4-CU
Description
IC MCU AVR 32KB FLASH 100VFBGA
Manufacturer
Atmel
Series
AVR® XMEGAr
Datasheet
1.ATXMEGA16D4-AU.pdf
(105 pages)
Specifications of ATXMEGA32D4-CU
Core Processor
AVR
Core Size
8/16-Bit
Speed
32MHz
Connectivity
I²C, IrDA, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
34
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
1.6 V ~ 3.6 V
Data Converters
A/D 12x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
49-VFBGA
Processor Series
XMEGA
Core
AVR
Data Bus Width
8 bit, 16 bit
Data Ram Size
4 KB
Interface Type
SPI, USART
Maximum Clock Frequency
32 MHz
Number Of Programmable I/os
34
Number Of Timers
4
Operating Supply Voltage
2.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Package
49VFBGA
Device Core
AVR
Family Name
XMEGA
Maximum Speed
32 MHz
On-chip Adc
12-chx12-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATXMEGA32D4-CU
Manufacturer:
Maxim
Quantity:
71
8135J–AVR–12/10
17. NMI Flag for Crystal Oscillator Failure automatically cleared
18. Flash Power Reduction Mode can not be enabled when entering sleep
19. Crystal start-up time required after power-save even if crystal is source for RTC
20. RTC Counter value not correctly read after sleep
21. Pending asynchronous RTC-interrupts will not wake up device
22. TWI Transmit collision flag not cleared on repeated start
Problem fix/Workaround
None for Output/Pull configuration.
For inverted I/O, configure the Analog Comparator to give an inverted result (i.e. connect
positive input to the negative AC input and vice versa), or use and external inverter to
change polarity of Analog Comparator output.
NMI flag for Crystal Oscillator Failure (XOSCFDIF) will be automatically cleared when exe-
cuting the NMI interrupt handler.
Problem fix/Workaround
This device revision has only one NMI interrupt source, so checking the interrupt source in
software is not required.
If Flash Power Reduction Mode is enabled when entering Power-save or Extended Standby
sleep mode, the device will only wake up on every fourth wake-up request. If Flash Power
Reduction Mode is enabled when entering Idle sleep mode, the wake-up time will vary with
up to 16 CPU clock cycles.
Problem fix/Workaround
Disable Flash Power Reduction mode before entering sleep mode.
Even if 32.768 kHz crystal is used for RTC during sleep, the clock from the crystal will not be
ready for the system before the specified start-up time. See "XOSCSEL[3:0]: Crystal Oscilla-
tor Selection" in XMEGA A Manual. If BOD is used in active mode, the BOD will be on during
this period (0.5s).
Problem fix/Workaround
If faster start-up is required, go to sleep with internal oscillator as system clock.
If the RTC is set to wake up the device on RTC Overflow and bit 0 of RTC CNT is identical to
bit 0 of RTC PER as the device is entering sleep, the value in the RTC count register can not
be read correctly within the first prescaled RTC clock cycle after wakeup. The value read will
be the same as the value in the register when entering sleep.
The same applies if RTC Compare Match is used as wake-up source.
Problem fix/Workaround
Wait at least one prescaled RTC clock cycle before reading the RTC CNT value.
Asynchronous Interrupts from the Real-Time-Counter that is pending when the sleep
instruction is executed, will be ignored until the device is woken from another source or the
source triggers again.
Problem fix/Workaround
None.
The TWI transmit collision flag should be automatically cleared on start and repeated start,
but is only cleared on start.
XMEGA D4
94