ATMEGA329V-8MI Atmel, ATMEGA329V-8MI Datasheet - Page 242
ATMEGA329V-8MI
Manufacturer Part Number
ATMEGA329V-8MI
Description
IC AVR MCU 32K 8MHZ 64-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA329V-8MI
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
54
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-MLF®, 64-QFN
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 242 of 392
- Download datasheet (7Mb)
242
ATmega329/3290/649/6490
Table 23-5.
The frame frequency can be calculated by the following equation:
Where:
This is a very flexible scheme, and users are encouraged to calculate their own table to investi-
gate the possible frame rates from the formula above. Note when using 1/3 duty the frame rate
is increased with 33% when Frame Rate Register is constant. Example of frame rate calculation
is shown in
Table 23-6.
clk
4MHz
4MHz
32.768kHz
32.768kHz
LCDCD2
LCD
0
0
0
0
1
1
1
1
N = prescaler divider (16, 64, 128, 256, 512, 1024, 2048, or 4096).
K = 8 for duty = 1/4, 1/2, and static.
K = 6 for duty = 1/3.
D = Division factor (see
Table
LCDCD1
duty
1/4
1/3
Static
1/2
LCD Clock Divide
Example of frame rate calculation
0
0
1
1
0
0
1
1
23-6.
K
8
6
8
8
LCDCD0
0
1
0
1
0
1
0
1
Table
2048
2048
16
16
N
divided by (D) :
Output from
23-5)
Prescaler
f
LCDCD2:0
frame
1
2
3
4
5
6
7
8
011
011
000
100
=
------------------------- -
(
K N D
f
clk
⋅
Duty = 1/4, gives a frame rate of:
LCD
clk
D
4
4
1
5
⋅
LCD
)
Frame Rate
4000000/(8*2048*4) = 61 Hz
4000000/(6*2048*4) = 81 Hz
32768/(8*16*1) = 256 Hz
32768/(8*16*5) = 51 Hz
= 32.768kHz, N = 16, and
85.3Hz
51.2Hz
42.7Hz
36.6Hz
256Hz
128Hz
64Hz
32Hz
2552K–AVR–04/11
Related parts for ATMEGA329V-8MI
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
IC AVR MCU 32K 16MHZ 64TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 32K 16MHZ 64-QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 32K 16MHZ 64TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 32K 16MHZ 64-QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 32K FLASH 16MHZ 64TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 32K FLASH 16MHZ 64QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
IC AVR MCU 32K 16MHZ 5V 44-QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 32K 16MHZ 5V 40DIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 32K 16MHZ 5V 44TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 32K 16MHZ IND 40-DIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 32K 16MHZ IND 44-TQFP
Manufacturer:
Atmel
Datasheet: