ATMEGA329V-8MI Atmel, ATMEGA329V-8MI Datasheet - Page 235
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
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23.3
23.3.1
2552K–AVR–04/11
LCD Usage
LCD Initialization
The following section describes how to use the LCD.
Prior to enabling the LCD some initialization must be preformed. The initialization pro-
cess normally consists of setting the frame rate, duty, bias and port mask. LCD contrast
is set initially, but can also be adjusted during operation.
Consider the following LCD as an example:
Figure 23-8.
Display:
Number of common terminals:
Number of segment terminals:
Bias system:
Drive system:
Operating voltage:
ATmega329
51
1b
1c
50
COM3
SEG0
SEG1
SEG2
49
2e
2f
48
47
46
45
LCD
2a
2g
2d
ATmega329/3290/649/6490
2b
2c
SEG2
SEG1
SEG0
TN Positive, Reflective
3
1/3 Bias
1/3 Duty
3.0 ± 0.3 V
21
Connection table
COM0
1b,1c
2c
2f
COM1
2g
2d
2a
COM2
2e
2b
..
235
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