ATMEGA8535-16MC Atmel, ATMEGA8535-16MC Datasheet - Page 34

• Manufacturer Part Number: ATMEGA8535-16MC
• Description: IC AVR MCU 8K 16MHZ COM 44-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8535-16MC

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-VQFN Exposed Pad
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: 2-Wire, SPI, USART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 4.5 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• On-chip Adc: 10 bit, 8 Channel
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Standby Mode
Extended Standby Mode
Table 14. Active Clock Domains and Wake-up Sources in the Different Sleep Modes.
Notes:
34
Sleep
Mode
Idle
ADC
Noise
Reduction
Power-
down
Power-
save
Standby
Extended
Standby
1. External Crystal or resonator selected as clock source
2. If AS
3. Only INT2 or level interrupt INT1 and INT0
(1)
(1)
ATmega8535(L)
clk
CPU
2
bit in ASSR is set
clk
Active Clock domains
FLASH
clk
X
IO
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
chronous modules, including Timer/Counter2 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 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 Oscillator is kept running.
From Extended Standby mode, the device wakes up in six clock cycles.
clk
X
X
ADC
clk
X
X
X
X
ASY
(2)
(2)
Enabled
Source
Clock
Main
X
X
X
X
Oscillators
Enabled
Timer
Osc
X
X
X
X
(2)
(2)
(2)
(2)
INT2
INT1
INT0
X
X
X
X
X
X
(3)
(3)
(3)
(3)
(3)
Address
Match
TWI
X
X
X
X
X
X
ASY
, allowing operation only of asyn-
Wake up sources
Timer
X
X
X
X
2
(2)
(2)
EEPROM
Ready
SPM/
X
X
2502K–AVR–10/06
A
D
C
X
X
Other
I/O
X