ATXMEGA16D4-CU Atmel, ATXMEGA16D4-CU Datasheet - Page 20

• Manufacturer Part Number: ATXMEGA16D4-CU
• Description: MCU AVR 16KB FLASH 49VFBGA
• Manufacturer: Atmel
• Series: AVR® XMEGAr

Specifications of ATXMEGA16D4-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: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K 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: ATXMEGA16x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 8 KB
• Interface Type: 2-Wire, SPI
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 34
• Number Of Timers: 4
• Operating Supply Voltage: 1.6 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 12 Channel
• On-chip Dac: 12 bit, 12 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

10. Power Management and Sleep Modes
10.1
10.2
10.3
10.3.1
10.3.2
10.3.3
8135J–AVR–12/10
Features
Overview
Sleep Modes
Idle Mode
Power-down Mode
Power-save Mode
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•
XMEGA provides various sleep modes and software controlled clock gating in order to tailor
power consumption to the application's requirement. Sleep modes enables the microcontroller to
shut down unused modules to save power. When the device enters sleep mode, program exe-
cution is stopped and interrupts or reset is used to wake the device again. The individual clock to
unused peripherals can be stopped during normal operation or in sleep, enabling a much more
fine tuned power management than sleep modes alone
Sleep modes are used to shut down modules and clock domains in the microcontroller in order
to save power. XMEGA has five different sleep modes. A dedicated Sleep instruction (SLEEP) is
available to enter sleep. Before executing SLEEP, the selected sleep mode to enter must be
configured. The available interrupt wake-up sources is dependent on the selected sleep mode.
When an enabled interrupt occurs the device will wake up and execute the interrupt service rou-
tine before continuing normal program execution from the first instruction after the SLEEP
instruction. If other higher priority interrupts are pending when the wake-up occurs, their interrupt
service routines will be executed according to their priority before the interrupt service routine for
the wake-up interrupt is executed. After wake-up the CPU is halted for four cycles before execu-
tion starts.
In Idle mode the CPU and Non-Volatile Memory are stopped, but all peripherals including the
Interrupt Controller and Event System are kept running. Interrupt requests from all enabled inter-
rupts will wake the device.
In Power-down mode all system clock sources, and the asynchronous Real Time Counter (RTC)
clock source, are stopped. This allows operation of asynchronous modules only. The only inter-
rupts that can wake up the MCU are the Two Wire Interface address match interrupts, and
asynchronous port interrupts.
Power-save mode is identical to Power-down, with one exception:
If the Real Time Counter (RTC) is enabled, it will keep running during sleep and the device can
also wake up from either RTC Overflow or Compare Match interrupt.
5 sleep modes
Power Reduction registers to disable clocks to unused peripherals
– Idle
– Power-down
– Power-save
– Standby
– Extended standby
XMEGA D4
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