ATMEGA8HVA-4CKU Atmel, ATMEGA8HVA-4CKU Datasheet - Page 34
![MCU AVR 8K FLASH 4MHZ 36-LGA](/photos/12/32/123221/36ck1-lga_sml.jpg)
ATMEGA8HVA-4CKU
Manufacturer Part Number
ATMEGA8HVA-4CKU
Description
MCU AVR 8K FLASH 4MHZ 36-LGA
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA16HVA-4CKU.pdf
(196 pages)
Specifications of ATMEGA8HVA-4CKU
Core Processor
AVR
Core Size
8-Bit
Speed
4MHz
Connectivity
SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
7
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 9 V
Data Converters
A/D 5x12b
Oscillator Type
External
Operating Temperature
-20°C ~ 85°C
Package / Case
36-LGA
Processor Series
ATMEGA8x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SPI
Maximum Clock Frequency
4 MHz
Number Of Programmable I/os
6
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRSB200, ATAVRSB201
Minimum Operating Temperature
- 20 C
On-chip Adc
12 bit, 5 Channel
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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10. Power Management and Sleep Modes
10.1
34
Sleep Modes
ATmega8HVA/16HVA
Sleep modes enable the application to shut down unused modules in the MCU, thereby saving
power. The AVR provides various sleep modes allowing the user to tailor the power consump-
tion to the application’s requirements.
Figure 9-1 on page 24
their distribution. The figure is helpful in selecting an appropriate sleep mode. The different sleep
modes and their wake up sources is summarized in
shows a sleep mode state diagram.
Table 10-1.
Notes:
To enter any of the sleep modes, the SE bit in SMCR, see
ter” on page
SM2..0 bits in the SMCR Register select which sleep mode will be activated by the SLEEP
instruction. See
If an enabled interrupt occurs while the MCU is in a sleep mode, the MCU wakes up. The MCU
is then halted for four cycles in addition to the start-up time, executes the interrupt routine, and
resumes execution from the instruction following SLEEP. The contents of the register file and
SRAM are unaltered when the device wakes up from any sleep mode except Power-off. If a
reset occurs during sleep mode, the MCU wakes up and executes from the Reset Vector.
Mode
Idle
ADC Noise Reduction
Power-save
Power-off
1. Discharge FET must be switched off for Charger Detect to be active.
2. Instantaneous and Accumulate Conversion Complete wake-up only.
39, must be written to logic one and a SLEEP instruction must be executed. The
Wake-up Sources for Sleep Modes
Table 10-3 on page 39
presents the different clock systems in the ATmega8HVA/16HVA, and
X
X
X
for a summary.
X
X
X
X
X
X
Table
X
X
X
Wake-up sources
”SMCR – Sleep Mode Control Regis-
10-1, and
X
X
X
X
Figure 10-1 on page 35
X
X
X
(2)
(2)
(2)
X
X
8024A–AVR–04/08
X
X
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