ATmega162 Atmel Corporation, ATmega162 Datasheet - Page 45

• Manufacturer Part Number: ATmega162
• Manufacturer: Atmel Corporation

Specifications of ATmega162

• Flash (kbytes): 16 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 35
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Uart: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 1
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 4
• Output Compare Channels: 6
• Input Capture Channels: 2
• Pwm Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Power-save Mode
Standby Mode
Extended Standby
Mode
Table 17. Active Clock domains and Wake up sources in the different sleep modes
Notes:
2513K–AVR–07/09
Sleep Mode
Idle
Power-down
Power-save
Standby
Extended Standby
1. External Crystal or resonator selected as clock source
2. If AS
3. For INT1 and INT0, only level interrupt
(1)
2
(1)
bit in ASSR is set
clk
CPU
Active Clock domains
When the SM2..0 bits are written to 011, the SLEEP instruction makes the MCU enter Power-
save mode. This mode is identical to Power-down, with one exception:
If Timer/Counter2 is clocked asynchronously, i.e., the AS2 bit in ASSR is set, Timer/Counter2
will run during sleep. The device can wake up from either Timer Overflow or Output Compare
event from Timer/Counter2 if the corresponding Timer/Counter2 interrupt enable bits are set in
TIMSK, and the Global Interrupt Enable bit in SREG is set.
If the Asynchronous Timer is NOT clocked asynchronously, Power-down mode is recommended
instead of Power-save mode because the contents of the registers in the Asynchronous Timer
should be considered undefined after wake-up in Power-save mode if AS2 is 0.
This sleep mode basically halts all clocks except clk
modules, including Timer/Counter 2 if clocked asynchronously.
When the SM2..0 bits are 110 and an external crystal/resonator clock option is selected, the
SLEEP instruction makes the MCU enter Standby mode. This mode is identical to Power-down
with the exception that the main Oscillator is kept running. From Standby mode, the device
wakes up in six clock cycles.
When the SM2..0 bits are 111 and an external crystal/resonator clock option is selected, the
SLEEP instruction makes the MCU enter Extended Standby mode. This mode is identical to
Power-save mode with the exception that the main Oscillator is kept running. From Extended
Standby mode, the device wakes up in six clock cycles.
clk
FLASH
clk
X
IO
clk
X
X
X
ASY
(2)
(2)
Source Enabled
Main Clock
X
X
X
Oscillators
Timer Osc
Enabled
X
X
X
(2)
(2)
(2)
ASY
and Pin Change Timer
, allowing operation only of asynchronous
INT2
INT1
INT0
X
X
X
X
X
(3)
(3)
(3)
(3)
Wake-up Sources
ATmega162/V
X
X
X
(2)
(2)
2
EEPROM
Ready
SPM/
X
Other
I/O
X
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